CRT-450 Salesforce Certified Platform Developer I (SP23) Questions and Answers

The code snippet above is not bulkified, meaning it does not handle multiple records efficiently. It performs a SOQL query inside a for loop, which can quickly hit the governor limit of 100 SOQL queries per transaction. The best technique to avoid reaching the governor limit is to refactor the code above to perform only one SOQL query, filtering by the Set of opportunityIds. This way, the code will retrieve all the OpportunityLineItems related to the given opportunityIds in one query, and avoid unnecessary iterations and queries.

References:

• Apex Developer Guide on Bulkifying Code (1)
• Apex Developer Guide on SOQL For Loops (2)
• Apex Developer Guide on System.Limits Class (3)

The merge method is an Apex Data Manipulation Language (DML) operation that allows you to combine up to three records of the same sObject type into one of the records, known as the master record. The merge method deletes the other records, known as the victim records, and reparents any related records to the master record. The merge method has the following characteristics:

• Merge is supported with accounts, contacts, cases, and leads: The merge method can only be used with these four standard sObject types. You cannot use the merge method with custom objects or other standard objects.
• The merge method allows up to three records, including the master and two additional records with the same sObject type, to be merged into the master record: The merge method takes an array of sObject records as the input parameter, where the first record is the master record and the rest are the victim records. The merge method can merge up to three records of the same sObject type into the master record. If you want to merge more than three records, you need to call the merge method multiple times.

The other statements are not valid considerations when using the merge method:

• The field values on the master record are overwritten by the records being merged: This is not true. The field values on the master record are not overwritten by the victim records, unless you explicitly specify the field names and values in the master record before calling the merge method. By default, the merge method preserves the field values of the master record and discards the field values of the victim records.
• External ID fields can be used with the merge method: This is not true. The merge method does not support external ID fields as input parameters. You need to use the record IDs of the sObject records to perform the merge operation.

References: Merging Records, merge method, Prepare for Your Salesforce Platform Developer I Credential

The Test.loadData < > method inserts test records from the specified static resource .csv file and for the specified sObject type, and returns a list of the inserted sObjects1. The file contains field names and values for the test records. The first line of the file must contain the field names and subsequent lines are the field values. To learn more about static resources, see “Defining Static Resources” in the Salesforce online help2. This method is useful for creating test data with specific field values without writing code. The other options are either incorrect or less efficient for this purpose. Anonymous Apex is a way to execute Apex code on demand in the Developer Console, but it is not a recommended way to create test data, as it is not part of the test class and may affect the org data3. SOQL is a query language that can retrieve data from the org, but it cannot create new data. Also, using SOQL to access existing data in a test class requires the @IsTest (SeeAllData=true) annotation, which is not a best practice, as it may cause test failures or unpredictable results4. Test.loadData does not support JSON files, only CSV files1. References:

• Test Class | Apex Reference Guide | Salesforce Developers
• Defining Static Resources | Salesforce Help
• Anonymous Apex | Apex Developer Guide | Salesforce Developers
• Isolation of Test Data from Organization Data in Unit Tests | Apex Developer Guide | Salesforce Developers

 To allow reporting on which companies have reported which bugs, a junction object between Bug__c and Account is needed. A junction object is a custom object with two master-detail relationships, one to each of the objects it is joining. A junction object allows many-to-many relationships between objects, such as Bug__c and Account in this scenario. With a junction object, each bug can be related to multiple accounts, and each account can be related to multiple bugs. A roll-up summary field, a lookup field, or a master-detail field would not allow this kind of relationship, as they only support one-to-many or one-to-one relationships between objects. References:

• Define Relationships Between Custom Objects (Trailhead Module)
• Relationships Among Objects (Salesforce Developer Documentation)
• Free Salesforce Platform Developer 1 Practice Exam (With Answers) (Salesforce Ben)

Adding system.debug statements to the code is a common and effective way to troubleshoot issues with Apex triggers. System.debug statements allow the developer to log messages, variables, or expressions to the debug log, which can be viewed in the Developer Console or other tools1. By adding system.debug statements at strategic points in the trigger code, the developer can track the execution flow, check the values of variables, and identify the root cause of the issue. Disabling the trigger in production is not a good practice, as it can affect the business logic and data integrity of the org2. Using the Apex Interactive Debugger is a powerful tool that allows the developer to set breakpoints, inspect variables, and execute code line by line, but it requires a paid license and a supported IDE3. Reviewing the Historical Event logs can provide useful information about the performance, security, and usage of the org, but it may not be sufficient to pinpoint the exact issue with the trigger4. References:

• Debug Your Code | Salesforce Trailhead
• Triggers | Apex Developer Guide | Salesforce Developers
• Apex Interactive Debugger | Salesforce Developer Tools
• Event Monitoring | Salesforce Trailhead

 A trigger is a piece of Apex code that executes before or after certain events, such as insert, update, delete, or undelete1. An aggregate function is a function that performs a calculation on a set of values and returns a single value, such as SUM, COUNT, AVG, MIN, or MAX2. A roll-up summary field is a field that calculates values from related records, such as those in a related list3. However, roll-up summary fields are only available for master-detail relationships, not for lookup relationships3. Therefore, to achieve a similar functionality for a custom object that is not in a master-detail relationship with the Opportunity object, a trigger can be written on the child object that uses an aggregate function to sum the amount for all related child objects under the Opportunity object. The trigger should handle different scenarios, such as insert, update, delete, or undelete of the child records, and update the corresponding Opportunity record accordingly. References:

• Triggers | Apex Developer Guide | Salesforce Developers
• Aggregate Functions | SOQL and SOSL Reference | Salesforce Developers
• Roll-Up Summary Field | Salesforce Help
• [Custom Roll-up Summary on Account Object | Salesforce Developer Guide - SFDCian]

To communicate from a child component to a parent component, the best option is to create a custom event in the child component and dispatch it to the parent component. The parent component can then listen for the event and handle it accordingly. For example, the child component can create a custom event called navigate and pass the page reference as a detail. The parent component can then use a handler to catch the event and use the navigation service to navigate to the next page.

Option A is incorrect because firing a notification is not a reliable way to communicate between components, as it depends on the user’s settings and preferences. Option B is incorrect because updating a property on the parent component requires the child component to have access to the parent’s property, which violates the principle of component encapsulation and modularity. Option C is incorrect because calling a method in the Apex controller is not necessary for navigation purposes, and it would introduce an extra server round-trip and potential performance issues.

References: Communicate with Events | Lightning Web Components Developer Guide, Basic Navigation | Lightning Web Components Developer Guide, Cert Prep: Platform Developer I: Lightning Web Components

The correct answer is to move all of the logic to a Queueable class that queries for and updates the Assets and call it from the trigger. This is because when dealing with bulk data, triggers can often hit governor limits. By utilizing a Queueable class, the developer can perform asynchronous processing which helps in handling more records and avoiding hitting governor limits. References: The Salesforce Platform Developer I Learning documents emphasize on understanding the governor limits and how to write efficient code that can handle bulk data without hitting these limits. Asynchronous processing like Batch Apex, Future methods, or Queueable Apex is often recommended for bulk data handling. You can find more information on these topics in the following links: Apex Developer Guide, Trailhead

The Aura application event propagation framework supports three phases for the propagation of application events: capture, bubble, and default. The capture and bubble phases are similar to DOM handling patterns and provide an opportunity for interested components to interact with an event and potentially control the behavior for subsequent handlers. The default phase preserves the framework’s original handling behavior and can be useful for handling application events that affect components in different sub-trees of your app. The emit and control phases are not part of the Aura application event propagation framework. References: Application Event Propagation, Application Events, Communicate with Events

Custom exceptions in Apex are user-defined exception classes that can have their own member variables, methods, constructors, and interfaces. They must extend the system Exception class and have a class name that ends with “Exception”. They cannot extend other classes besides the Exception class. Custom exceptions enable more detailed error messages and custom error handling in catch blocks. They can also be rethrown as inner exceptions to preserve the stack trace information.

References:

• Create Custom Exceptions | Apex Developer Guide
• Exception Class and Built-In Exceptions | Apex Reference Guide
• Handling Exceptions in Apex: Creating and Using Custom Exceptions
• Custom Or User-Defined Exception In Apex | Salesforce Developer Tutorials
• Using custom exception types | Mastering Apex Programming

To pass data from a parent component to a child component, the developer can use either a custom event or a public property1. A custom event is a way for a component to communicate with its parent or ancestor components by sending a message that contains data. The parent component can listen for the event and handle it accordingly. A public property is a way for a parent component to pass data to a child component by setting an attribute on the child component’s HTML tag. The child component can access the data through the property’s value.

The developer cannot use the Apex controller class or invoke a method in the child component to pass data from the parent component. The Apex controller class is used to communicate with the server and perform business logic, not to pass data between components. Invoking a method in the child component is a way for the parent component to call a function defined in the child component, not to pass data to it. References:

• Inter-Component Communication Patterns for Lightning Web Components | Salesforce Developers Blog
• Communicate with Events - Lightning Web Components Developer Guide - Salesforce Developers
• Pass Data to Child Components - Lightning Web Components Developer Guide - Salesforce Developers

 To implement the total_Hours__c field on the Opportunity object, the developer should use a roll-up summary field on the Opportunity object. A roll-up summary field calculates values from related records, such as those in a related list1. In this case, the roll-up summary field on the Opportunity object would sum up the Number_of_Hours__c values from the Sales_Help_Request__c records that are related to the Opportunity via the Lookup relationship. This is the simplest and most declarative way to achieve the requirement.

The other options are not valid because:

• A roll-up summary field on the Sales_Help_Request__c object would not be able to aggregate the values from the child records to the parent record. A roll-up summary field can only calculate values from the child records to the parent record in a master-detail relationship, not a lookup relationship1.
• A trigger on the Opportunity object would not be able to access the Number_of_Hours__c values from the Sales_Help_Request__c records without performing a SOQL query. A trigger can only access the fields of the records that are being inserted, updated, deleted, or undeleted2. A trigger would also require more coding and testing than a roll-up summary field.
• A record-triggered flow on the Sales_Help_Request__c object would not be able to update the total_Hours__c field on the Opportunity object without performing a SOQL query and a DML operation. A record-triggered flow can only access and update the fields of the record that triggered the flow3. A record-triggered flow would also be more complex and less efficient than a roll-up summary field.

References:

• 1: Roll-Up Summary Field - Salesforce
• 2: Triggers and Order of Execution - Salesforce
• 3: Record-Triggered Flows - Salesforce

To check the code coverage of a class after running all tests, the developer should view the code coverage percentage of the class using the Overall Code Coverage panel in the Developer Console Test tab1. This panel shows the code coverage for each Apex class and trigger in the organization, as well as the overall code coverage. The developer can also view the line-by-line code coverage for a class by opening the class and selecting the All Tests option from the Code Coverage menu2. The blue lines indicate the lines that are covered by tests, and the red lines indicate the lines that are not covered by tests. References:

• 1: Testing and Code Coverage | Apex Developer Guide
• 2: Checking Code Coverage - Salesforce

 To create a Lightning component on a Visualforce page, you need to use the Lightning Components for Visualforce JavaScript library, which is included by the apex:includeLightning/ tag. This library provides the $Lightning object, which has two methods: $Lightning.use and $Lightning.createComponent. The $Lightning.use method references a Lightning dependency app that declares the component dependencies. The $Lightning.createComponent method creates an instance of the component and renders it on the page. See Use Lightning Components in Visualforce Pages1 for more details. References: 1: Use Lightning Components in Visualforce Pages | Lightning Aura Components Developer Guide | Salesforce Developers(https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/components_visualforce.htm)

A record-trigger flow on Opportunity is the most efficient way for a developer to implement this requirement, because it allows the developer to automate the creation and assignment of a Task without writing any code. A record-trigger flow can be configured to run when a record is created, updated, or deleted, and it can access and update related records using flow elements1. A record-trigger flow on Opportunity can also use the $Record global variable to access the Opportunity Owner and assign the Task to them2.

An auto-launched flow on Task is not an efficient way to implement this requirement, because it requires the developer to manually invoke the flow from another process, such as a trigger or a button3. An auto-launched flow on Task cannot access the Opportunity record or its Owner without a lookup element, which adds complexity and reduces performance.

An Apex trigger on Task is not an efficient way to implement this requirement, because it requires the developer to write and maintain code, which is more prone to errors and harder to debug than a flow. An Apex trigger on Task also cannot access the Opportunity record or its Owner without a SOQL query, which consumes governor limits and increases the risk of hitting the 101 SOQL limit.

A Task action is not an efficient way to implement this requirement, because it requires the user to manually create and assign the Task from the Opportunity record page. A Task action does not automate the process, and it relies on the user to remember and follow the business rule. References:

• 1: Automate Your Business Processes with Record-Triggered Flows
• 2: Use the $Record Global Variable in Record-Triggered Flows
• 3: Automate Your Business Processes with Scheduled and Platform Event–Triggered Flows
• : Access and Update Related Records in Flows
• : Apex Triggers
• : Apex Governor Limits
• : Create Actions for the Action Bar

Debug logs are used to track events that occur in an org, such as database operations, Apex code execution, workflow processes, and API calls. Debug logs have different categories, levels, and filters that determine what information is logged and how much detail is included. Some of the statements about debug logs are:

• Debug log levels are cumulative, where FINE log level includes all events logged at the DEBUG, INFO, WARN, and ERROR levels. This means that setting a higher log level for a category will also log the events from the lower levels. For example, if the log level for Apex Code is FINE, then the debug log will include log messages generated by DML statements, inline SOQL or SOSL queries, the start and completion of any triggers, and the start and completion of any test method.
• The maximum size of a debug log is 5 MB. Debug logs that are larger than 5 MB are reduced in size by removing older log lines, such as log lines for earlier System.debug statements. The log lines can be removed from any location, not just the start of the debug log.
• System debug logs are retained for 24 hours. Monitoring debug logs are retained for seven days. System debug logs are generated when you have active user-based trace flags, when you run Apex tests, and when executed code or API requests include debugging parameters or headers. Monitoring debug logs are generated when you set debug log filters for specific users, classes, and triggers.

The other statements are not accurate because:

• Only the 20 most recent debug logs for a user are kept. This is not true, because the number of debug logs that are kept for a user depends on the log size and the retention period. For example, if a user has 10 debug logs that are each 1 MB in size, and another user has 10 debug logs that are each 500 KB in size, then the first user will have more debug logs retained than the second user, even if they both generated the same number of logs.
• Debug logs can be set for specific users, classes, and triggers. This is partially true, but not entirely. You can set debug log filters for specific users, classes, and triggers, but you cannot set debug log levels for them. Debug log levels are set at the org level, and they apply to all debug logs that are generated in the org.

References:

• : Debug Log Levels and Filters
• : Debug Log Size and Retention
• : Set Debug Log Filters

The code snippet provided in the image is a Salesforce Apex code that is used to create new accounts in a Salesforce org. Initially, there are five existing accounts. In the provided Apex code, one account named ‘MyAccount’ is created and inserted into the org, making the total six accounts. Then, a loop is executed to create and add ten more new accounts (named ‘New Account 1’ to ‘New Account 10’) into the org using a do-while loop that runs while x is less than 10 (starting from x=1). So, after executing this code, there will be an additional eleven accounts added to the initial five accounts making it a total of fifteen (5 initial + 11 new = 16) accounts in the org. References: The explanation can be corroborated with knowledge of Apex programming on Salesforce’s official learning platform Trailhead and related documentation.

• [Apex Basics for Admins]
• [Apex Developer Guide]
• [Developer Console]

Scratch orgs are short-term Salesforce environments that you can spin up to work on a feature. They are source-driven, disposable, and fully configurable. To create scratch orgs, you need to use the Salesforce CLI, which is a command-line tool that lets you interact with Salesforce orgs and perform various tasks. You can use the Salesforce CLI to create a scratch org definition file, which specifies the features and settings of the scratch org, and then run the force:org:create command to create the scratch org. You can also use the force:org:open command to open the scratch org in a browser without logging in.

References: The use of Salesforce CLI to create scratch orgs can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover Salesforce DX and scratch orgs, such as:

• Get Started with Salesforce DX
• Scratch Orgs
• Develop in Scratch Orgs

The correct implementation is to implement the line amount as a numeric formula field and the order amount as a roll-up summary field. This is because formula fields can calculate values based on other fields, such as quantity and price, without requiring any code or process1. Roll-up summary fields can aggregate values from related records, such as the sum of line amounts for an order, without requiring any code or process2. This solution is the most declarative and efficient way to achieve the requirement.

References:

• 1: Create Formula Fields
• 2: Define Roll-Up Summary Fields

 To use a custom exception, you can create an instance of the custom exception class and use the throw keyword to throw the exception. You can also optionally provide a custom error message or a chained exception cause as arguments to the custom exception constructor. The syntax for throwing a custom exception is:

throw new CustomException(optional_message, optional_cause);

Therefore, the options B and D are valid ways to fire the custom exception in Apex. The options A and C are invalid because they only create an instance of the custom exception class, but do not throw it. Also, the option C uses single quotes instead of double quotes for the error message, which is not allowed in Apex. References: You can find more information about custom exceptions in the Apex Developer Guide and the Apex Reference Guide on Salesforce’s official website. You can also read this blog post for a tutorial on creating and using custom exceptions.

The sfdx commands that can be used to add testing data to a Developer sandbox are forced: data:bulk:upsert and forced: data:tree:upsert. The forced: data:bulk:upsert command uses Bulk API 2.0 to upsert records from a CSV file into an org1. The forced: data:tree:upsert command uses the SObject Tree Save API to import records from a JSON file that describes objects and relationships2. The forced: data:object:upsert command is not valid, and the forced: data:async:upsert command does not exist.

References:

• Salesforce CLI Command Reference - force:data:bulk:upsert
• Salesforce CLI Command Reference - force:data:tree:upsert

 Salesforce CLI is a command-line interface that lets you run commands to create, test, and deploy Salesforce applications. You can easily integrate Salesforce CLI commands into various CI tools, such as CircleCI, Jenkins, or Travis CI, to automate testing and deployment of Salesforce applications against scratch orgs. Salesforce CLI also supports the Salesforce DX development model, which enables source-driven development, team collaboration, and agile delivery. References:

• Continuous Integration | Salesforce DX Developer Guide
• Set Up Continuous Integration for Your Salesforce Projects | Salesforce Developers Blog
• Collaborate Using Continuous Integration Unit | Salesforce Trailhead

• Validation Rules. This is true because validation rules are a declarative way of enforcing data quality and business logic on the Salesforce objects. Validation rules can prevent users from saving records that do not meet certain criteria, such as required fields, unique values, or custom formulas1.
• Record-Triggered Flow. This is true because record-triggered flows are a declarative way of automating business processes and logic on the Salesforce objects. Record-triggered flows can perform actions such as creating, updating, or deleting records, sending emails, or calling Apex classes when a record is created, updated, or deleted2.
• Remote Actions. This is false because remote actions are a programmatic way of invoking Apex methods from Visualforce pages or Lightning components. Remote actions require writing Apex code and using the @RemoteAction annotation to expose the methods to the client-side3.
• Batch Jobs. This is false because batch jobs are a programmatic way of processing large sets of data or records in batches using Apex. Batch jobs require writing Apex code and implementing the Database.Batchable interface to define the start, execute, and finish methods of the job.

References:

• 1: Validation Rules
• 2: Record-Triggered Flows
• 3: Remote Actions
• : Batch Jobs

The correct answer is D because the Model-View-Controller (MVC) design framework is a best practice for developing scalable and maintainable applications on the Salesforce platform. The MVC framework separates the application logic into three layers: the model, which represents the data and business logic; the view, which displays the user interface and user interactions; and the controller, which mediates the communication between the model and the view. By using the MVC framework, developers can modularize their code, reuse components, and avoid tight coupling between layers. The other options are incorrect because they are not design frameworks, but rather development methodologies or architectures. Flux is an architecture for building user interfaces with React, a JavaScript library. Waterfall and Agile are methodologies for managing software development projects, with different approaches to planning, testing, and delivering software. References:

• Apex Developer Guide: MVC Architecture
• Trailhead: Apex Basics for .NET Developers
• Trailhead: Platform Developer I Certification Study Guide

A record-triggered flow is an automation tool that allows you to run a flow when a record is created, updated, or deleted1. You can use a record-triggered flow to meet the business requirement of deleting associated opportunity records when the related account is deleted. You can configure the flow to trigger when an account is deleted, and then use the Get Records element to query the related opportunities. Then, you can use the Delete Records element to delete the queried opportunities2. This way, you can ensure that the opportunity records are proactively deleted when the account is deleted, without writing any code.

Workflow rules and process builder are also automation tools that can run when a record is created, updated, or deleted, but they cannot delete records directly. You would need to use an Apex action or a custom field update to achieve the same functionality3 . Scheduled jobs are Apex classes that run at specified intervals, such as daily or weekly. They are not suitable for the business requirement of deleting records when another record is deleted, as they are not triggered by record changes.

References:

• Record-Triggered Flows | Salesforce Help
• Delete Records with a Record-Triggered Flow | Salesforce Trailhead
• Workflow Rules | Salesforce Help
• [Process Builder | Salesforce Help]
• [Scheduled Apex | Apex Developer Guide | Salesforce Developers]

To declare variables that cannot change once a value is assigned, the developer can use the final keyword, which means that the variable can only be assigned a value once, either when declaring the variable or inside a constructor1. For example:

Java

// Declare a final variable and assign its value when declaring

final Integer creditAmount = 1000;

// Declare a final variable and assign its value in the constructor

final Integer debtAmount;

public MyClass() {

debtAmount = 500;

}

AI-generated code. Review and use carefully. More info on FAQ.

The developer cannot use the static keyword to achieve the same effect, as static variables are not final by default. Static variables are used to store class-level information that is shared across all instances of the class, and they can be changed by any method in the class or by external classes2. For example:

Java

// Declare a static variable and assign its value in the class constructor

static Integer creditAmount;

public MyClass() {

creditAmount = 1000;

}

// Declare a static variable and assign its value in a static initializer

static Integer debtAmount;

static {

debtAmount = 500;

}

// Change the value of the static variables in a method

public void updateAmounts(Integer newCredit, Integer newDebt) {

creditAmount = newCredit;

debtAmount = newDebt;

}

AI-generated code. Review and use carefully. More info on FAQ.

References:

• Using the final Keyword | Apex Developer Guide | Salesforce Developers
• Using the static Keyword | Apex Developer Guide | Salesforce Developers

The problem of duplicate order records is caused by the integration not being able to identify the existing order record in Salesforce and creating a new one instead. To prevent this, the integration needs to use a unique identifier that can match the order record in both systems. The order number in the OMS can serve as such an identifier, if it is guaranteed to be unique and not reused. Therefore, the following actions can prevent the duplicate order records from being created in Salesforce:

• Option A: Ensure that the order number in the OMS is unique. This will ensure that there is no ambiguity or confusion when matching the order records in both systems.
• Option B: Use the order number from the OMS as an external ID. An external ID is a custom field that can be used to store a unique identifier from an external system. By using the order number from the OMS as an external ID, the integration can use the upsert operation to either insert a new order record or update an existing one based on the external ID value.

References:

• Trailhead: Data Modeling (1)
• Trailhead: Data Integration (2)
• Apex Developer Guide: Upserting Records (3)

A. if (Schema.sObjectType.Contact.isUpdatable()) - This checks if the Contact object is updatable for the current user. B. if (Schema.sObjectType.Contact.fields.Is_Active__c.isUpdateable()) - This checks if the Is_Active__c field on the Contact object is updatable for the current user.

These checks should be performed before executing DML statements to ensure that security is not bypassed.

C and D are incorrect because: C. It only checks if the Contact object is accessible, not whether it’s updatable. D. Checking ownership does not necessarily enforce field-level and object-level permissions.

References:

• Apex Developer Guide
• Trailhead: Data Security

I also noticed that you sent me an image along with your question. It seems to be a snippet of code written in Apex, which is used for Salesforce development. It shows a public method named updateContact that accepts a Contact object as a parameter. Inside this method, there’s an assignment operation where Is_Active__c field of thisContact object is set to false. A try/catch block follows where an attempt to update thisContact record occurs within try; any exceptions caught during this process are handled in catch block. If an exception occurs during update operation, an error message string gets concatenated with exception’s message and displayed using ApexPages.addmessage.

If you are looking for more resources to study for the Platform Developer I exam, you can check out the following links from my web search results:

• Free Salesforce Platform Developer 1 Practice Exam (With Answers): This is a website that offers 60-question practice exam with answers and explanations, written by a Salesforce Developer.
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I: This is a PDF document that provides the exam guide, sample questions, and answers for the certification exam.
• Salesforce Platform Platform Developer I Exams – Courses: This is a website that offers 4 full-length practice exams with 60 questions each, written by a Salesforce Developer

To include a custom SVG in a Lightning web component, you need to follow these three steps:

• Upload the SVG as a static resource. You can use the Static Resource page in Setup or the Salesforce CLI to upload the SVG file as a static resource. You need to give it a name and a description, and optionally specify a cache control setting1.
• Import the static resource and provide a getter for it in JavaScript. In your Lightning web component’s JavaScript file, you need to import the static resource using the @salesforce/resourceUrl module. Then, you need to define a getter function that returns the URL of the static resource2. For example:

JavaScript

import { LightningElement } from 'lwc';

import customSVG from '@salesforce/resourceUrl/customSVG';

export default class MyComponent extends LightningElement {

get svgURL() {

return customSVG;

}

}

AI-generated code. Review and use carefully. More info on FAQ.

• Reference the getter in the HTML template. In your Lightning web component’s HTML template, you need to use the 

HTML

AI-generated code. Review and use carefully. More info on FAQ.

In the JavaScript file, you also need to define a handleSVGLoaded method that uses the XMLHttpRequest object to fetch the SVG content and append it to the 

JavaScript

handleSVGLoaded(event) {

const svgElement = event.target;

const xhr = new XMLHttpRequest();

xhr.open('GET', this.svgURL, true);

xhr.onload = () => {

svgElement.innerHTML = xhr.responseText;

};

xhr.send();

}

AI-generated code. Review and use carefully. More info on FAQ.

References:

• 1: Create and Upload a Static Resource (Lightning Web Components Developer Guide)
• 2: Use a Static Resource (Lightning Web Components Developer Guide)
• 3: Use lwc:dom=“manual” (Lightning Web Components Developer Guide)
• 4: Load the SVG Content (Lightning Web Components Developer Guide)

Marking the field as Required on the field definition ensures that the field cannot be left blank or null when a record is created or updated, regardless of the page layout or the API. This is the most efficient way to enforce a value for the picklist field, as it does not require any additional configuration or code. Setting the first value as the default value does not prevent the user from changing or clearing the value. Setting a validation rule requires writing a formula and handling error messages. Marking the field as Required on the page layout only affects the user interface, not the API or other tools. References:

• Create a Custom Picklist Field from the Salesforce Help
• Get Started with Picklists from the Salesforce Trailhead
• Picklist Considerations from the Salesforce Help

The view state limit is the maximum size of the serialized version of the page state that can be transferred between the server and the client. The view state includes the components, field values, and controller state of the page. To reduce the view state size, a developer can use a StandardSetController, which allows the developer to create pagination for a set of records without having to manually manage the query and the results. A StandardSetController can handle up to 10,000 records, and only the records that are displayed on the current page are included in the view state. This way, the developer can avoid querying and storing all the records in a list variable, which would increase the view state size and potentially cause errors. References:

• Visualforce Developer Guide: StandardSetController Methods
• Visualforce Developer Guide: Working with Very Large SOQL Queries
• Trailhead: Visualforce Basics

The @HttpInvocable annotation is used to expose an Apex class as a RESTful web service. This allows the class to be invoked by a REST client, enabling external systems to interact with Salesforce via the API. The methods within the class that are exposed as REST web services must be static and global or public. References: Apex Developer Guide

A trace flag is a configuration that specifies the debug level, the start time, the end time, and the log type for a user, an Apex class, or an Apex trigger. The log types are DEVELOPER_LOG, USER_DEBUG, and CLASS_TRACING. A trace flag can be configured for Visualforce, Apex classes, and users to enable logging of their activities and events. For example, a trace flag can be set for a Visualforce page to capture the execution time, view state, and heap size. A trace flag can also be set for an Apex class or trigger to override the default logging level and capture more or less information. A trace flag can also be set for a user to monitor their actions and interactions with Salesforce. A trace flag cannot be configured for Process Builder or outbound messages, as they are not supported log types. References:

• TraceFlag from the Tooling API Developer Guide
• Debug Log Levels from the Salesforce Help
• Set Up Debug Logging from the Salesforce Help

 To display any validation rule violation to the user, the developer needs to include the apex:message component on the Visualforce page. This component displays a custom message or an exception message, depending on the value of the id attribute. If the id attribute matches the id of another component on the page, such as an input field, the apex:message component displays the validation error for that component. If the id attribute is not specified, the apex:message component displays the first exception message generated by the controller. The developer can also use the apex:messages component to display all the messages for the page, not just the first one.

Option A is incorrect because adding custom controller attributes to display the message would require additional logic and coding in the controller and the Visualforce page. Option C is incorrect because using a try/catch with a custom exception class would not display the validation rule violation to the user, but rather handle the exception in the controller. Option D is incorrect because performing the DML using the Database.upsert() method would not display the validation rule violation to the user, but rather return a list of Database.SaveResult objects that contain the success or failure status of each record.

References: apex:message | Visualforce Developer Guide, ValidationRule | Metadata API Developer Guide, How to Display Validation Rule Errors in Visualforce Page

 The method must be decorated with @AuraEnabled to make it accessible from a Lightning web component. The @AuraEnabled annotation enables client- and server-side access to an Apex controller method. Without this annotation, the Lightning web component can’t call the Apex method. The cacheable=true attribute is optional and indicates whether the method can be cached by the client. The method can return any data type that can be serialized into JSON, such as a JSON object, a JSON array, a primitive type, or a custom type. The method does not need to return a string of a serialized JSON array, as the framework handles the serialization and deserialization automatically. References:

• Lightning Web Components Developer Guide: Call Apex Methods, pages 1-2
• Apex Developer Guide: Annotation AuraEnabled, page 1
• Trailhead: Platform Developer I Certification Study Guide: Lightning Web Components, unit 5

To support split shipments, a developer should add an Order_shipment_Group_c object and a master-detail field on Order_Line_c. The Order_shipment_Group_c object represents a group of order lines that share the same delivery method and destination address1. The master-detail field on Order_Line_c establishes a relationship between each order line and its corresponding order shipment group. This way, the shipping information can be stored in the Order_shipment_Group_c object instead of the Order_c object, and any number of order lines on a single order can be shipped to different locations.

References:

• OrderDeliveryGroup | Object Reference for the Salesforce Platform | Salesforce Developers

 A developer can use a validation rule or a trigger to prevent Opportunities from being edited when they reach the Closed/Won stage. A validation rule can check the stage value and display an error message if the user tries to modify the record. A trigger can also check the stage value and throw an exception if the user tries to update the record. Both of these strategies can enforce the business logic at the database level and prevent unwanted changes.

An after-save flow or the Process Automation settings are not suitable for this requirement, because they are executed after the record is saved to the database. They can perform actions based on the record changes, but they cannot prevent the record from being edited in the first place.

References:

• 1: Validation Rules (Salesforce Help)
• 2: Triggers (Apex Developer Guide)
• 3: Run Flows After a Record Is Saved (Lightning Flow Developer Guide)
• 4: Process Automation Settings (Salesforce Help)

The developer should write a class that implements the HTTPCalloutMock interface to provide test coverage for the Apex code that calls out to an external system. The HTTPCalloutMock interface enables you to inject fake responses into the callout response in a test method, so that you can isolate your Apex logic from any dependency on the external system. The interface has one method, respond, that returns a predefined HTTPResponse object when the Apex code calls the HTTPRequest.send method. By using the HTTPCalloutMock interface, you can test your Apex code without actually calling the external system, which saves time and avoids hitting callout limits. The other options are not valid ways to mock a callout in a test method. The HTTPCalloutMock interface is not a class, so it cannot be extended. The WebserviceMock interface is used to mock a SOAP web service callout, not a RESTful HTTP callout. The WebserviceMock interface is also not a class, so it cannot be extended either. References:

• Apex Developer Guide: Testing HTTP Callouts by Implementing the HttpCalloutMock Interface, pages 1-2
• Trailhead: Platform Developer I Certification Study Guide: Apex Testing, unit 6

The @InvocableMethod annotation is used to identify methods that can be run as invocable actions from a flow, a bot, or an NBA. There are some considerations when using this annotation in Apex, such as:

• A method using the @InvocableMethod annotation must define a return value, even if it is null. This is because the invocable action must return a value to the flow, bot, or NBA that invokes it.
• A method using the @InvocableMethod annotation can have only one input parameter, which can be a list of a primitive data type, a list of a specific sObject type, or a list of a generic sObject type. This is because the invocable action can accept only one input value from the flow, bot, or NBA that invokes it.
• A method using the @InvocableMethod annotation must be declared as static, because it is not associated with a specific instance of the class that defines it. Static methods can be invoked without creating an object of the class.
• A method using the @InvocableMethod annotation can be declared as either public or global, depending on the visibility of the invocable action. Public methods are visible within the same namespace, while global methods are visible across namespaces.
• Only one method using the @InvocableMethod annotation can be defined per Apex class, because each invocable action is associated with a single Apex class. Multiple invocable methods in the same class would cause ambiguity and confusion.

References: InvocableMethod Annotation | Apex Developer Guide, How to Invoke Apex from Flows Using InvocableMethod Annotation

• By providing device-awareness for mobile and desktops. This is true because the Lightning Component framework is a UI framework for developing Lightning components for mobile and desktop devices. Lightning web components and Aura components can coexist and interoperate on a page. The framework takes care of rendering the components appropriately for different devices and screen sizes1.
• By providing an Agile process with default steps. This is false because the Lightning Component framework does not provide any specific process or methodology for developing solutions. Developers can use any process that suits their needs, such as Agile, Waterfall, or Scrum2.
• By providing code review standards and processes. This is false because the Lightning Component framework does not provide any code review standards or processes. Developers are responsible for ensuring the quality and maintainability of their code, and they can use tools such as code analysis, testing, and debugging to help them3.
• By providing change history and version control. This is false because the Lightning Component framework does not provide any change history or version control features. Developers can use tools such as Git, SVN, or Salesforce DX to manage their source code and track changes.

References:

• 1: Introducing Aura Components
• 2: Agile Development with Salesforce
• 3: Code Quality and Code Analysis
• : Source Control and Salesforce Development

The aspect of Apex programming that is limited due to multitenancy is the number of records processed in a loop. Multitenancy is a means of providing a single application to multiple organizations, such as different companies or departments within a company, from a single hardware-software stack. This results in a standard environment that is fully operated and managed by Salesforce, which is much more efficient and cost-effective for your company. However, multitenancy also imposes some limits and governor rules on the Apex code that runs on the Salesforce Platform, to ensure that no single organization can monopolize the shared resources and affect the performance and reliability of other organizations. One of these limits is the number of records that can be processed in a loop, which is 200 for synchronous Apex and 2000 for asynchronous Apex. This means that if you have a loop that iterates over a collection of records, such as a list or a set, you cannot process more than 200 or 2000 records at a time, depending on the context of your Apex code. If you try to process more records than the limit, you will get a System.LimitException error. To avoid hitting this limit, you need to use best practices such as using SOQL for loops, using collections and maps, using bulkified methods, and using asynchronous Apex.

The other options are not aspects of Apex programming that are limited due to multitenancy. The number of active Apex classes is not limited by multitenancy, but by the total size of all Apex classes in your organization, which is 6 MB for Enterprise Edition and 36 MB for Unlimited Edition. The number of methods in an Apex class is not limited by multitenancy, but by the maximum number of characters in an Apex class, which is 1,000,000. The number of records returned from database queries is not limited by multitenancy, but by the SOQL query row limit, which is 50,000 for synchronous Apex and 200,000 for asynchronous Apex.

References: Apex Governor Limits, Multitenancy and Metadata Overview, Prepare for Your Salesforce Platform Developer I Credential

 To efficiently generate the required data for each unit test, the best approach is to use @TestSetup with a void method. This annotation allows you to create common test data that is available for all test methods in the test class. The data is rolled back after each test method, so you don’t have to worry about deleting or modifying it. This way, you can avoid duplicating code and improve performance by reducing the number of DML operations. The other options are not correct because:

• Creating test data before Test.startTest in the unit test means that you have to repeat the same code for every test method that needs the same data. This can make your test class longer and harder to maintain. It also consumes more DML statements and governor limits.
• Creating a mock using the Stub API is useful for testing callouts or interfaces, not for creating test data. A mock object is a fake object that simulates the behavior of a real object. It does not persist any data in the database.
• Adding @IsTest(seeAllData=true) at the start of the unit test class is not a good practice, as it makes your test methods depend on the data in the org. This can cause your tests to fail or behave inconsistently if the data changes or is not available. It also exposes your test methods to the risk of violating data privacy or security policies. References:
• Generate Data for Tests
• Testing Best Practices
• Free Salesforce Platform Developer 1 Practice Exam (With Answers)

 The Developer Console is a tool that allows developers to access and edit code, execute SOQL and SOSL queries, debug and test code, view logs and performance data, and more. The Developer Console can help troubleshoot performance issues by providing information such as execution time, heap size, CPU time, and limits usage for each line of code. The Developer Console also has features such as the Performance Tree, the Execution Overview, and the Timeline View that can help identify and optimize the performance bottlenecks. The Developer Console is different from the other tools listed, as they are not designed for performance troubleshooting. AppExchange is a marketplace for Salesforce apps and components. Salesforce CLI is a command-line interface for managing Salesforce projects and orgs. Visual Studio Code IDE is an integrated development environment that supports Salesforce extensions and tools. References:

• Developer Console from the Salesforce Developer Center
• Troubleshoot Performance Using the Developer Console from the Salesforce Trailhead
• Developer Console Basics from the Salesforce Help

The correct definition of the Apex method is shown in option C. This Apex method is defined as an invocable method, meaning it can be called from a process or flow. It’s marked with the @InvocableMethod annotation. The method returns a list of lists of recommendations and takes a list of ContactWrapper objects as input, which allows for bulk processing of records in flows. References:

• Certification - Platform Developer I - Trailhead, Section 5. Exam Outline, Topic: Logic and Process Automation, Weight: 46%, Objective: Describe how to use declarative and programmatic methods to create custom user interfaces on the Lightning Platform.
• [Call Apex Methods from Lightning Web Components], Trailhead Module, Unit: Call Apex Methods Imperatively
• [SOQL and SOSL Queries], Salesforce Developer Guide, Chapter: SOQL and SOSL Reference

This code is vulnerable to a cross-site scripting (XSS) attack, because it takes user-supplied input and outputs it directly back to the user without escaping the XSS-vulnerable characters, such as <, >, ", ', and &. By setting the escape attribute to false, the developer disables the anti-XSS filter that is enabled by default for most Visualforce tags. An attacker can exploit this vulnerability by injecting malicious HTML or JavaScript code into the userInput parameter, which can then execute on the user’s browser and compromise their security or privacy. References:

• Cross Site Scripting (XSS)
• Security Tips for Apex and Visualforce Development
• Security Guidelines for Apex and Visualforce Development

The global access modifier declares that the class and method are known by all Apex code everywhere, not just within the same application or package namespace. This access modifier must be used for any method that must be referenced outside of the application, either in SOAP API or by other Apex code1. The other options are either incorrect or insufficient, as they do not guarantee the accessibility of the method outside the package namespace2. References:

• Access Modifiers | Apex Developer Guide | Salesforce Developers
• Global Modifier Accessing Public Elements in a Managed Package

To find the current user’s default record type for a given object, such as Opportunity, the developer can use the Opportunity.SObjectType.getDescribe().getRecordTypeInfos() method to get a list of RecordTypeInfo objects that represent the record types available to the current user1. Then, the developer can iterate through the list and check the isDefaultRecordTypeMapping() method on each RecordTypeInfo object to determine which one is the default record type for the current user2. The default record type is the one that is automatically assigned to new records created by the user, unless the user selects a different record type3.

The developer cannot use the other options to find the current user’s default record type. Option A is incorrect because there is no such method as profile.Opportunity.getDefaultRecordType(). Option C is incorrect because there is no such class as Schema.userInfo. Option D is incorrect because it does not find the default record type before inserting the record, but rather after creating the record, which may not be the same as the default record type. References:

• RecordTypeInfo Class | Apex Reference Guide | Salesforce Developers
• Get Default Record Type Id & Name in Apex - Salesforce Stack Exchange
• Set Record Type Preferences - Salesforce Help

 To override the Contact’s Edit button and provide custom user interfaces in both Salesforce Classic and Lightning Experience, the developer should use a Visualforce page in Salesforce Classic and a Lightning component in Lightning Experience. This is because Visualforce pages are supported as overrides in Salesforce Classic, but not in Lightning Experience or mobile. On the other hand, Lightning components are supported as overrides in Lightning Experience and mobile, but not in Salesforce Classic. Therefore, the developer needs to use different technologies for different user interfaces. The developer can specify the override type and the page or component to use for each user interface in the Buttons, Links, and Actions settings of the Contact object. References: Override Standard Buttons and Tab Home Pages, Standard Actions and Overrides Basics, Override Buttons, Links, and Tabs with Visualforce

A validation rule is a declarative way to enforce data quality and business logic on the records. A validation rule can prevent a record from being deleted if it does not meet certain criteria, such as having a specific field value. For example, a validation rule on the Container__c object could be:

NOT(ISPICKVAL(Status__c, “Decommissioned”))

This validation rule would prevent any Container record from being deleted unless its Status__c field is “Decommissioned”.

An Apex trigger is a programmatic way to execute custom logic before or after a record is inserted, updated, deleted, or undeleted. An Apex trigger can also prevent a record from being deleted by using the SObject.addError() method, which displays an error message and rolls back the transaction. For example, an Apex trigger on the Container__c object could be:

trigger ContainerTrigger on Container__c (before delete) { for (Container__c c : Trigger.old) { if (c.Status__c != ‘Decommissioned’) { c.addError(‘You can only delete decommissioned containers.’); } } }

This trigger would iterate over the records that are being deleted and check their Status__c field. If the field is not “Decommissioned”, it would add an error to the record and prevent the deletion.

B. After record-triggered flow and D. Before record-triggered flow are not correct answers because record-triggered flows cannot prevent records from being deleted. Record-triggered flows are a declarative way to automate business processes and execute actions when a record is created, updated, or deleted. However, record-triggered flows do not have the ability to display custom error messages or roll back transactions. Therefore, they cannot be used to enforce the business requirement of only allowing decommissioned containers to be deleted. References: Validation Rules, Apex Triggers, Record-Triggered Flows

The correct answer is option C, which is the upsert statement. In Salesforce, when you have a custom object and want to insert new records and update existing ones using an external ID field, you use the upsert DML operation. The upsert statement either inserts or updates sObject records based on the value of a specified unique external ID field. References: The information can be referenced from the official Salesforce documentation and learning materials available on Trailhead. Specifically, it aligns with the objectives outlined in data modeling and management, as well as Apex programming basics where DML operations are discussed. Salesforce DML Operations

The developer should implement either a Lightning component or a Visualforce page that performs the HTTP REST callout, and use a Lightning Action or a Visualforce quick action to expose the component on the Opportunity detail page. These methods allow the developer to create a user interface that can capture the user input and trigger the callout based on a user-initiated action. The Lightning component or the Visualforce page can use the Apex controller to invoke the HTTP callout using the built-in HTTP classes, such as HttpRequest, HttpResponse, and Http. The Lightning Action or the Visualforce quick action can be added to the page layout of the Opportunity object and configured to display the component in a modal dialog or a panel.

Creating a Process Builder or an after update trigger to perform the HTTP REST callout is not a suitable method for this business requirement, because these methods do not provide a user interface or a user-initiated action. The Process Builder or the trigger would execute the callout whenever the Opportunity is updated, regardless of the user input or intention. This could result in unnecessary or unwanted callouts, as well as hitting the governor limits for callouts.

References: Invoking HTTP Callouts, Configuring an HTTP Callout Action, Create HTTP Callout for Salesforce Flow, Invoking Callouts Using Apex, [Prepare for Your Salesforce Platform Developer I Credential]

Formulas are expressions that are used to calculate and display values based on the data in your records. Formulas can be used in various contexts, such as formula fields, validation rules, workflow rules, and so on. Some of the characteristics related to formulas are:

• Formulas are calculated at runtime and are not stored in the database. This means that every time a record is viewed or a report is run, the formula is evaluated based on the current data in the record. This ensures that the formula results are always up to date and accurate1.
• Formulas can reference values in related objects. This means that you can use formulas to access data from parent or child objects, or even from objects that are indirectly related via lookup or master-detail relationships. For example, you can use a formula field on the Opportunity object to display the account owner’s name by referencing the Owner.Name field on the Account object2.
• Formulas cannot reference themselves. This means that you cannot use a formula field or variable as part of its own definition. For example, you cannot create a formula field called Total Amount that adds itself to another field. This would create a circular reference and cause an error3.
• Fields that are used in a formula field cannot be deleted or edited without editing the formula. This means that if you want to delete or change a field that is referenced by a formula field, you have to modify the formula field first to remove or update the reference. Otherwise, the formula field will become invalid and display an error. References: 1: Formula Operators and Functions by Context - Salesforce Developers (3) 2: Cross-Object Formulas - Salesforce Help (4) 3: Tips for Working with Formulas - Salesforce Help (5) : Considerations for Deleting Fields - Salesforce Help (6)

The correct option is C, which includes the import statement for an Apex method named updateAccounts in the class AccountController. In Salesforce, to use an Apex method in a Lightning Web Component (LWC), you need to import it using a specific syntax. The syntax includes the import keyword followed by the method name from '@salesforce/apex/ClassName.MethodName'. This makes the Apex method available for use within the LWC. References:

• 1: Order of Execution (Apex Developer Guide)
• 2: Use a Static Resource (Lightning Web Components Developer Guide)
• 3: Call Apex Methods | Lightning Web Components Developer Guide …
• 4: Wire Apex Methods to Components | Lightning Web Components Developer …
• 5: How to call the apex method in lightning web component
• 6: Using Apex | Lightning Aura Components Developer Guide | Salesforce …

The Order Number field should be defined as an External ID and Unique field in Salesforce. This is because the Order Number is a unique identifier that comes from an external system and needs to be matched with the corresponding order records in Salesforce. An External ID field allows you to use the Order Number as a foreign key for data integration and upsert operations. A Unique field ensures that no two order records have the same Order Number in Salesforce. References:

• Order Fields - Salesforce
• Order | Salesforce Field Reference Guide | Salesforce Developers
• Allow Standard Order Number Field to be Overwritten - Salesforce
• How to Create Number Field Type in Salesforce

In Salesforce, the sharing context is determined by the definition of the class where a method is defined, not where it is invoked or instantiated. Since there’s no “with sharing” or “without sharing” keyword in the class definition in the provided example, it operates in system context. In system context, Apex code has access to all objects and fields— object permissions, field-level security, sharing rules aren’t applied for the current user. References: Apex Developer Guide

• SVG resources, content asset files, and static resources are three Salesforce resources that can be accessed from a Lightning web component. They are used to store and display images, icons, fonts, stylesheets, JavaScript libraries, and other files that are required by the component12.
• SVG resources are Scalable Vector Graphics files that can be used to create and display icons and images in a Lightning web component. They can be referenced by using the @salesforce/resourceUrl import in the JavaScript file of the component12.
• Content asset files are files that are uploaded to the Salesforce Content Library and can be used to store and display images and other media in a Lightning web component. They can be referenced by using the @salesforce/contentAssetUrl import in the JavaScript file of the component12.
• Static resources are files or archives that are uploaded to the Static Resources page in Salesforce Setup and can be used to store and access stylesheets, JavaScript libraries, fonts, and other files in a Lightning web component. They can be referenced by using the @salesforce/resourceUrl import in the JavaScript file of the component12.
• Third-party web components and all external libraries are not Salesforce resources that can be accessed from a Lightning web component. They are not supported or recommended by Salesforce for security and performance reasons12.
• Third-party web components are web components that are created by other vendors or developers and are not part of the Lightning web components framework. They may not follow the same standards, specifications, or best practices as Lightning web components and may introduce security risks or compatibility issues12.
• All external libraries are JavaScript libraries that are hosted on external servers or CDNs and are not part of the Salesforce platform. They may not be compatible with the Lightning web components framework or the Locker Service, which enforces strict security policies and restrictions on the code execution and access12.

References:

• 1: Lightning Web Components Developer Guide
• 2: Cert Prep: Platform Developer I: User Interface

 To make an Apex method available to be wired to a property in a Lightning web component, the developer should use the @AuraEnabled annotation with the cacheable parameter set to true. This indicates that the method is meant to be used in a read-only manner and that the results can be cached on the client. This improves the performance and user experience of the Lightning web component. The @RemoteAction annotation is used for Visualforce remoting, not for Lightning web components. The @AuraEnabled annotation without the cacheable parameter is used for imperative Apex methods that are invoked from a Lightning web component’s JavaScript controller. The @RemoteAction(cacheable=true) annotation is not valid syntax. References: Call Apex Methods, Apex Annotations

https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_controller_sosc_custom_button.htm

A helper is a JavaScript resource that contains functions that can be reused by the component’s controller or other helpers. A controller is a JavaScript resource that contains functions that handle user interactions and events in the component. A renderer is a JavaScript resource that overrides the default rendering behavior of the component. A style is a CSS resource that defines the appearance of the component. A design is an XML resource that specifies the design-time attributes for the component. References: Using JavaScript, Using External JavaScript Libraries In Aura Component, Expression Functions Reference

Apex test methods should not depend on existing data in the sandbox, because they may not have access to the same data when they run in a different environment, such as production. Test methods should create their own test data, or use the @testSetup annotation to create common test data for all test methods in a class12. The Execute Anonymous tool runs the code in the context of the current user and the current data, so it may not reproduce the same behavior as the test method3. References:

• Get Started with Apex Unit Tests Unit | Salesforce Trailhead
• Using Test Setup Methods | Apex Developer Guide - Salesforce Developers
• Test Class | Apex Reference Guide | Salesforce Developers

A developer should use the Salesforce CLI to script the deployment and unit test execution as part of continuous integration. The Salesforce CLI is a powerful command line interface that simplifies development and build automation when working with your Salesforce org. You can use the Salesforce CLI to perform various tasks such as creating and deploying metadata, running Apex tests, retrieving debug logs, and managing orgs1. References:

• Salesforce CLI
• Certification - Platform Developer I - Trailhead
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I

The test method fails in the sandbox test framework because it relies on existing data in the sandbox, which may not be consistent or available for the test execution. The Apex test framework uses a separate test data context that is rolled back after the test execution, so any data that is queried or inserted by the test method must be created within the test method or by using the @testSetup annotation. The Execute Anonymous window, on the other hand, runs the Apex logic in the current user context and can access the existing data in the sandbox. Therefore, the Apex logic may succeed in the Execute Anonymous window but fail in the test framework. References:

• Apex Testing (Salesforce Developer Documentation)
• Isolation of Test Data from Organization Data in Unit Tests (Salesforce Developer Documentation)
• Free Salesforce Platform Developer 1 Practice Exam (With Answers) (Salesforce Ben)

The Create Records element allows you to create one or more new records of a specific object type in a Flow1. In this case, the developer needs to create a new Contact record and store its ID on the Opportunity record. The other options are either incorrect or unnecessary, as they do not create a new record or assign its ID to another record23. References:

• Create Records | Flow Builder | Salesforce Developers
• Get Records | Flow Builder | Salesforce Developers
• Update Records | Flow Builder | Salesforce Developers

 To mark each Account in a List as either Active or Inactive based on the LastModified field value being more than 90 days, the developer should use a for loop, with an if/else statement inside. This technique allows the developer to iterate over the list of accounts, check the condition for each account, and update the field value accordingly. A switch statement is not suitable for this scenario, because it can only compare one expression with a set of constant values, not a range of values or a date calculation. An if/else statement without a for loop would not be able to process the entire list of accounts, only one account at a time.

References:

• : Loops
• : Switch Statements
• : If-Else Statements

A scratch org is a temporary Salesforce instance, typically used for a specific development. To create and manage scratch orgs, a developer needs to enable the Dev Hub feature in a Salesforce org. The Dev Hub org acts as a central hub for creating and tracking scratch orgs. The Dev Hub org can be a production org, a developer edition org, or a business org. The Dev Hub feature is not available in sandboxes or environment hubs. References: Scratch Orgs | Salesforce DX Developer Guide, Get Started With Salesforce Scratch Orgs

QUESTIN NO: 4

A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what defined for payments in the PaymentProcessor interface. public interface PaymentProcessor { void pay(Decimal amount); } Which is the correct implementation to use the PaymentProcessor interface class?

A. Public class CheckPaymentProcessor implements PaymentProcessor {

public void pay(Decimal amount) {}

}

B. Public class CheckPaymentProcessor implements PaymentProcessor {

public void pay(Decimal amount);

}

C. Public class CheckPaymentProcessor extends PaymentProcessor {

public void pay(Decimal amount);

}

D. Public class CheckPaymentProcessor extends PaymentProcessor {

public void pay(Decimal amount) {}

}

Answer: A

To use the PaymentProcessor interface class, the CheckPaymentProcessor class must implement the interface using the implements keyword and provide a concrete implementation of the pay method with the same signature as defined in the interface. The extends keyword is used for inheritance, not for implementing interfaces. The pay method must have a body with curly braces, not a semicolon. References:

• Get Started with Platform Developer I Study Guide - Salesforce
• Certification - Platform Developer I - Trailhead
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I

Outbound messages are a way of sending information from Salesforce to external systems or applications in real-time when certain criteria or conditions are met. Outbound messages are sent as SOAP messages and can include fields from the record that triggered them. Outbound messages can be configured from Setup and do not require Apex code. Outbound messages can be associated with different automation tools in Salesforce, such as:

• Approval Process: This is a way of automating the approval of records based on predefined steps and actions. Approval processes can send outbound messages as part of the approval actions when the record meets the entry criteria and approval criteria.
• Workflow: This is a way of automating tasks and actions based on certain rules and criteria. Workflow rules can send outbound messages as part of the workflow actions when the record meets the rule criteria.
• Process Builder: This is a way of creating complex business processes and logic using a graphical interface. Process builder can send outbound messages as part of the process actions when the record meets the criteria node.

References:

• Setting Up Outbound Messaging (1)
• Outbound Message in Salesforce: Comprehensive Guide (2)
• Outbound Message Actions - Salesforce (3)