Cisco 300-635 Automating Cisco Data Center Solutions (DCAUTO) Exam Practice Test

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 command telemetry_receiver.py --ip-address <addr> -port  is used to start a Python network telemetry collector. This command specifies the IP address and port where the telemetry receiver will listen for incoming telemetry data from network devices

To enable Bash shell on a Cisco Nexus 9000 Series Switch running NX-OS, the command feature bash-shell must be used. This command activates the Bash shell feature within NX-OS, allowing for advanced scripting and automation capabilities directly on the switch. It’s important to note that proper authorization should be ensured before using this command, and its implications for security and operations should be understood. References :=

Official Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide

Cisco Community Discussion on Enabling Bash Shell

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 order to integrate a Kubernetes environment with Cisco ACI, the Kubernetes manifests typically need to include references to ACI End Point Groups (EPGs). This allows for the application components within Kubernetes to be associated with the networking policies defined in ACI, ensuring consistent network policy application across both environments. References: Since I can’t provide direct links to external sources, I recommend checking Cisco’s official documentation and training materials for the most accurate and up-to-date information.

 The DCNM API is REST-based, allowing third parties to test and develop application software. It supports a wide range of operations that can also be performed using the DCNM GUI, which uses these REST APIs to render the GUI itself. This means that the same tasks available through the API can be accessed and managed through the graphical user interface, providing flexibility in how network administrators interact with DCNM23.

References := Cisco DCNM REST API Guide, Cisco Community

Simple Network Management Protocol (SNMP) traditionally operates on a pull model where the management system periodically polls or requests information from network devices at set intervals. In contrast, model-driven telemetry is designed to use a push model where information is sent by network devices to the management system proactively when certain conditions are met or at set intervals without waiting for an explicit request from the management system. References := Cisco IOS XE Model-Driven Telemetry

To enable the REST API browser within Cisco UCS Director, a user must edit their profile to enable developer options. This action provides access to the REST API browser, which is a powerful tool for automating tasks and operations within the Cisco UCS Director environment.

References := Implementing Automation for Cisco Data Center Solutions (DCAUI)

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

git add .

git commit –m “new function”

git status

GET, firmware, RunningFirmwares

The -brief command in the Cisco bigmuddy-network-telemetry-collector is used to display only the message headers. This command provides a concise view of the telemetry data streamed from XR routers, which is useful for quick inspections or debugging purposes without the need for full message details1.

References := Cisco Code Exchange, VCEGuide

The error message “Request failed ” indicates that the Ansible playbook is trying to connect to the Cisco NX-OS switch using HTTP but is unable to establish a connection. This can be due to the HTTP server feature not being enabled on the NX-OS device. Enabling an HTTP server on a Cisco NX-OS device allows for remote management of the device via HTTP, which is what the Ansible playbook is attempting to do.

To resolve this issue, one would need to enable the HTTP server on the Cisco NX-OS switch. The command http-server enabled specifically enables the HTTP server feature, allowing for remote connections such as those attempted by Ansible playbooks.

References :=

Implementing Automation for Cisco Data Center Solutions (DCAUI) - 6

Cisco Learning Network - Automating Cisco Data Center Solutions Videos - 7 

 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 ucs_vlans module is part of the Ansible collection for Cisco UCS (Unified Computing System) and is used to manage VLANs on Cisco UCS Manager. When working with Cisco UCS, VLANs are a crucial aspect of network segmentation and management. The ucs_vlans module allows users to configure VLAN settings such as the VLAN ID, name, and state. It also supports advanced features like fabric configuration and multicast policies.

References:

Ansible Documentation for Cisco UCS modules1.

Cisco’s official training and certifications page, which may offer updated and detailed courses on implementing automation for Cisco Data Center solutions

 To execute an Ansible playbook named n9k.yml, the correct command is ansible-playbook n9k.yml. This command runs the specified playbook, allowing you to automate tasks on the Cisco Nexus switch using Ansible. References:

Ansible Documentation - Run Your First Command and Playbook

Ansible Documentation - Playbooks Intro

Automating Apache Web Server Deployment with Ansible Playbooks

Controlling playbook execution: strategies and more user QUESTION NO: 63 Refer to the exhibit:https://www.bing.com/images/blob?bcid=RLdoSzzf3RgHNOMBpJdfO8MMmWRU…90 Refer to the exhibit: The code should create a new tenant named Cisco via the Cobra SDK, which shows up after the execution of this script in the APIC dashboard. Which code must be inserted into the red box to create this tenant? A. Tenant = NewTenant(name=‘Cisco’) B. tenant — Tenant(topMo, name-Cisco’) C. Tenant = Tenant(topMo, name=‘Cisco’) D. Tenant = Tenant(‘Cisco’)

The Python code in the exhibit is using the Cobra SDK to interact with Cisco’s Application Centric Infrastructure (ACI). The code performs the following actions:

It logs into the ACI fabric using credentials provided.

It creates a new Virtual Routing and Forwarding (VRF) instance named “DevNet_VRF” within a tenant named “DevNet_Tenant”.

It creates a new Bridge Domain (BD) named “DevNet_BD” within the same tenant and associates it with the previously created VRF.

It defines a subnet within this Bridge Domain with the network address “10.10.10.1/24”, which is labeled as “DevNet_Subnet”.

An Application Profile (AppProfile) named “DevNet_App” is created within the tenant.

An Endpoint Group (EPG) named “DevNet_EPG” is created and associated with both the AppProfile (“DevNet_App”) and BridgeDomain (“DevNet_BD”).

Therefore, options B and C are correct: B. This action creates an EPG called “DevNet_EPG” inside an AppProfile called “DevNet_App” located in an ACI tenant called “DevNet_Tenant”. The EPG is linked to a BridgeDomain called “DevNet_BD”. C. This action creates a subnet called “DevNet_Subnet” inside VRF “DevNet_VRF” located in an ACI tenant called “DevNet_Tenant” and sets its network address to “10.10.10.1/24”.

References :=For more information on automating Cisco Data Center Solutions, one can refer to Cisco’s official training course for Implementing Automation for Cisco Data Center Solutions (DCAUI): Cisco Training Course

To add an additional NTP server to an existing NTP server policy in Cisco Intersight via API call, one would typically use the HTTP PATCH method to update the policy with the new server details. The PATCH method is used to apply partial modifications to a resource.

The image shows four different code snippets that are examples of API calls using different HTTP methods (POST and PATCH) for modifying NTP server policies in Cisco Intersight. However, without seeing the full context of options A, B, C, and D from the original question source, it’s impossible to determine which one correctly adds an additional NTP server to “My_NTP_Policy”.

Based on common practices for RESTful APIs and assuming that “My_NTP_Policy” already exists and we need to add another NTP server to it without removing existing ones:

One would use a PATCH request.

The URI (Uniform Resource Identifier) should target the specific policy by name or ID.

The body of the request should include only the properties that are being added or changed—in this case, adding a new NTP server address.

References :=

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