1z0-771 Oracle APEX Cloud Developer Professional Questions and Answers

In Oracle APEX Workflow, onlyone instanceof a workflow can exist in the "In Development" state at a time. This ensures that developers work on a single draft version before publishing it. Multiple instances are allowed in other states (e.g., "Published"), but not during development.

Theme Styles define visual themes in APEX:

A. When the Is Public attribute is enabled: Setting "Is Public" to "Yes" in Shared Components > Theme Styles allows runtime selection (e.g., via a dropdown in the app UI), letting users switch between styles (e.g., "Vita" to "Vita - Dark").

B. Control layout: False; layout is managed by templates and regions; Theme Styles handle colors, fonts, etc.

In an Interactive Grid, the "Save Report" functionality allows end users to save customizations (e.g., filters, column order). The available options are:

Private: Saved for the individual user only, visible only to them.

Public: Saved and shared with all users of the application, if permitted by the developer.

The GetCurrentPosition Dynamic Action retrieves geolocation data from the user's device. It supports:

Latitude and Longitude: Returns coordinates as separate numeric values (e.g., lat: 37.7749, lon: -122.4194).

The Create Application Wizard streamlines app creation with:

Adding or deleting application pages: Allows users to define initial pages (e.g., Home, Reports) and remove unwanted ones during the wizard process.

Reordering application pages: Provides drag-and-drop or list-based reordering of pages to set the navigation sequence.

Uploading JavaScript or CSS: This occurs post-creation in Shared Components, not within the wizard.

TheShow AI Assistant Dynamic Actionin Oracle APEX triggers the display of the AI Assistant interface. To customize the first message users see:

Welcome Message: This attribute in the Property Editor defines the initial text displayed when the AI Assistant appears. Setting it to "How may I help you today?" ensures this exact phrase greets users, enhancing user experience by setting a friendly tone. It’s a static, developer-defined string, distinct from AI-generated responses.

Initial Prompt: This attribute defines the starting input or context sent to the AI model, not the visible message shown to users. It’s typically hidden and used to guide the AI’s behavior (e.g., "Act as a support agent").

Declarative options for downloading BLOB/CLOB content include:

Download Dynamic Action: A built-in action type to trigger downloads of BLOB/CLOB data.

Push Notifications in Oracle APEX enable real-time messaging to users’ devices via Progressive Web App (PWA) capabilities. The component responsible for storing messages is:

A. Queue: ThePush Notification Queue(managed internally by APEX and accessible via APIs like APEX_PWA.PUSH_QUEUE) temporarily holds messages scheduled for delivery. When a notification is created (e.g., via APEX_PWA.SEND), it’s added to this queue, awaiting processing by the APEX mail system or an external push service. The queue ensures reliable delivery, even if the user is offline temporarily, as messages are dispatched once connectivity is restored.

B. Application: The application defines the PWA settings and logic but doesn’t store messages; it’s the container, not the storage mechanism.

To enable an existing APEX application as a Progressive Web App (PWA), the mandatory step is:

Enable the PWA flag in the Application Definition: In the Application Definition attributes under "Progressive Web App," setting "Enable PWA" to "Yes" activates PWA features like installability, push notifications, and service worker generation. This is the foundational step, after which optional customizations (e.g., icons, manifest) can be added.

Friendly URLs: While recommended for modern apps, they’re not required for PWA functionality.

Custom JavaScript: Optional for offline capabilities, but not mandatory for basic PWA enablement.

The APEX_MAIL API facilitates email functionality:

A. You can add files as attachments: Using APEX_MAIL.ADD_ATTACHMENT (e.g., APEX_MAIL.ADD_ATTACHMENT(p_mail_id, p_attachment, p_filename)), you can attach BLOBs (e.g., PDFs) to emails.

C. You can send emails: APEX_MAIL.SEND (e.g., APEX_MAIL.SEND(p_to => 'user@example.com', p_body => 'Hello')) sends emails from APEX, leveraging the configured mail server.

B. You can receive emails: False; APEX_MAIL is send-only; receiving requires custom integration (e.g., IMAP).

APEX Workspaces define development environments tied to database schemas:

A. During workspace creation, you can associate the workspace with an existing database schema: In the Workspace creation wizard (via Instance Administration), you select an existing schema (e.g., "HR") to link, enabling access to its objects. This is a standard step, ensuring immediate usability.

B. New schemas cannot be created during workspace creation: APEX doesn’t provide a UI to create schemas here; schemas must pre-exist in the database, created via SQL (e.g., CREATE USER).

C. A workspace can be associated with only one schema: False; a workspace can associate with multiple schemas post-creation via "Manage Workspace to Schema Assignments."

The "Create Data Model using AI" feature in APEX Assistant leverages AI to generate data models based on natural language input. The supported SQL format options are:

Quick SQL: A shorthand syntax for defining database objects, which APEX can convert into full DDL.