300-635 Automating Cisco Data Center Solutions (DCAUTO) Questions and Answers

The EEM script in the exhibit is designed to monitor for specific syslog messages. If any of the patterns specified (“copy bootflash:* running-config”, “copy run start”, or “Hello”) occur within a 120-second window, the script will trigger the reload of module 1 on the Cisco Nexus 9000 switch. This action is based on the occurrence of any one of the patterns, not all, which aligns with option B. References:

Implementing Automation for Cisco Data Center Solutions (DCAUI) course material

Cisco Nexus 9000 Series NX-OS System Management Configuration Guide

To isolate a new package from the main code base, creating a new virtual environment is the best practice. This allows for the installation and testing of the new package without affecting the existing code or dependencies. Performing a pip install of the new package within this isolated environment ensures that any potential issues or conflicts are contained. References :=

General best practices in software development for package management and virtual environments.

The subscription stream for sys/bgp is set to be sent every 5000 milliseconds, as indicated by the configuration line switch(config-tm-sub)# snsr-grp 100 sample-interval 5000. Since there are 1000 milliseconds in a second, a sample interval of 5000 milliseconds equates to a frequency of every 5 seconds. References: Cisco Nexus 9000 Series NX-OS System Management Configuration Guide

GET, firmware, RunningFirmwares

To access the REST API browser within Cisco UCS Director, one must enable the Developer menu from the Cisco UCS Director interface. After enabling this option, select ‘Orchestration’ and then choose ‘REST API Browser’. This allows users to interact with the various APIs provided by Cisco UCS Director for automation and orchestration purposes. References: Cisco UCS Director REST API Guide

The Cisco Data Center Network Manager (DCNM) REST API provides a robust platform for automating various tasks in the data center. Two of its capabilities include:

A: The DCNM REST API uses the dcnm-token header for requests authentication after initial basic authentication. This token-based authentication is more secure as it reduces the need to repeatedly send credentials over the network.

E: The DCNM REST API is organized into different management areas such as Classic LAN, LAN Fabric, Media Controller, and SAN Management. This categorization allows for targeted automation and management within specific domains of the data center network.

References :=

Implementing Automation for Cisco Data Center Solutions (DCAUI) v1.0

Cisco Data Center Network Manager documentation

 The network bootstrap program used by Cisco NX-OS for iPXE is called iPXE-POAP (Power-On Auto Provisioning). This process assists in automating the installation and configuration of Nexus switches. POAP automates the process of upgrading software images and installing configuration files on switches that are being deployed in the network for the first time. References: Cisco official documentation and training materials.

The ACI CNI plug-in is designed to provide intent-based networking for containers, allowing them to be managed from the same interface as VMs and bare-metal servers. This integration facilitates consistent policy enforcement, automation, and visibility across all types of workloads. References: Cisco ACI documentation and training materials.

The Cobra SDK is used for automating tasks within Cisco’s Application Policy Infrastructure Controller (APIC). To create a new tenant named ‘Cisco’, the correct code is Tenant = Tenant(topMo, name='Cisco'). This line of code initializes a new instance of the Tenant class, with topMo as the parent managed object and ‘Cisco’ as the name of the tenant. This effectively instructs the APIC to create a new tenant with the given name.

References:

Implementing Automation for Cisco Data Center Solutions (DCAUI) course: Cisco Training Course

Cisco Learning Network - Data Center Training Videos: Cisco Learning Network

The correct command to execute a Python script within the Guest Shell container on a Cisco NX-OS switch is guestshell run, followed by the path to the Python script. In this case, the script deltacounters.py is located in /home/admin/, so the full command would be guestshell run python /home/admin/deltacounter.py ethernet1/1. This command initiates the Guest Shell, which is a secure, Linux-based environment designed to run custom Linux applications, including Python scripts, on Cisco NX-OS platforms. By specifying python after guestshell run, we are instructing Guest Shell to use its Python interpreter to execute the given script with ‘ethernet1/1’ as an argument passed to it.

References:

Cisco Guest Shell Configuration Guide

Implementing Automation for Cisco Data Center Solutions (DCAUI)

 To update the firmware on a specific Cisco UCS rack server managed by Cisco Intersight using a Python script, the script must include a GET request to retrieve the server with the specified AssetTag and then update the firmware JSON body with the server’s Managed Object ID (Moid). The correct statements to complete this task would be:

A GET request that queries the Intersight API for the server with the given AssetTag (Option A).

An update to the firmware JSON body dictionary, setting the ‘Server’ key to the ‘Moid’ value obtained from the GET request response (Option D).

References:

Cisco Intersight API documentation for details on API endpoints and query parameters.

Python requests library documentation for constructing and executing HTTP requests.

The API Inspector in Cisco’s APIC is used to capture and display API requests made by the APIC GUI. It helps users learn or identify the sequence of API calls for specific operations performed in the APIC GUI. This tool is useful for developers who want to automate tasks using RESTful APIs by providing them with exact API calls that can be replicated in scripts or applications. References :=

Implementing Automation for Cisco Data Center Solutions (DCAUI) course

In Cisco NX-OS platforms, two common bootstrap technologies are supported: iPXE (Internet Protocol eXtensible Environment) and POAP (PowerOn Auto Provisioning). iPXE allows for network booting using software such as DHCP or TFTP to load an operating system over a network interface independently of data storage devices like hard disks or CD-ROM drives. POAP automates the process of upgrading software images and installing configuration files on switches that are being deployed in the network for the first time. References := Cisco NX-OS Software

In an ACI policy model, the separation of logical and concrete domains allows for the definition of policies in a logical space without specifying physical details. These policies can then be applied flexibly to the concrete entities, providing a clear abstraction layer for network configuration. References: Cisco ACI policy model documentation.

The default data encoding for the response output of the ACI APIC API inspector is JSON (JavaScript Object Notation). JSON is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate. References: Cisco ACI documentation and API guides.

Without the exhibit or the complete Python code options (A, B, C, D), it is not possible to determine which snippet correctly creates an application policy named OrderProcess with two application endpoint groups under Tenant SuperEats using direct calls to the ACI REST API. The correct answer would depend on the specific API calls made and the structure of the JSON payload in the Python code.

References :=

Automating Cisco Data Center Solutions (DCAUI) v1

Cisco Application Centric Infrastructure (ACI) documentation

To create an SVI using NX-API CLI JSON-RPC interface, one would typically need to construct a Python dictionary that represents the RPC payload containing the necessary commands. The request call would then be made using a library like requests where this dictionary is passed as JSON data. In general terms, without specifying exact options since they are not visible in any provided resources or within my capabilities:

One option would likely involve specifying parameters for creating an SVI including its ID number.

Another option might involve setting specific attributes for the SVI such as name, description, or IP address. References :=

Implementing Automation for Cisco Data Center Solutions (DCAUI) course: 6

Cisco Learning Network - Data Center Training Videos: 7

When using the Cisco Intersight API, the Secret Key is only available at the time of API Key creation, which is why option B is correct. An API Key is indeed composed of a Key ID and Secret Key, making option C correct as well. The other options do not apply as per the standard practices for API authentication