REST, or Representational State Transfer, is an architectural style that is characterized by its stateless nature, meaning each request from a client to a server must contain all the information needed to understand and complete the request without relying on any stored context on the server. This increases reliability and scalability. However, ‘stateful’ is not a guiding principle of REST; instead, it is ‘statelessness’ that is a core principle. The other main guiding principles include a uniform interface, cacheability, and a layered system

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

The output shown in the exhibit is a list of distinguished names (DNs) for Cisco Unified Computing System (UCS) blades within specific chassis. The correct PowerTool commands to provide this output would be those that retrieve information about UCS blade servers and then select their distinguished names. The command Get-UcsBlade | Select-Object Dn retrieves all the UCS blade servers and then pipes them to the Select-Object cmdlet to display only their distinguished names, which matches the pattern seen in the exhibit. Similarly, Get-UcsRackUnit | Select-Object Dn could potentially provide a similar output if rack units are named in a similar fashion to blades within the system’s naming conventions. References :=

Cisco UCS PowerTool Suite - PowerShell Libraries for Cisco UCS Manager: 1

Cisco UCS Manager CLI Configuration Guide: 2

 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.

Kubernetes deployed with the ACI CNI plug-in offers Namespace Isolation and Cluster Isolation. Namespace Isolation segregates resources within the same cluster using Kubernetes namespaces, while Cluster Isolation ensures complete separation between different clusters. References:

Cisco ACI Documentation

Cisco Learning Network

The top level in the ACI Management Information Tree is polUni. This is the top-level class for all policy definition and resolution objects within the Cisco ACI Policy Model. It serves as the root for policy namespace in the Management Information Tree12.

References :=

Cisco ACI Policy Model Guide1

Understanding the Cisco Application Policy Infrastructure Controller2

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 code snippet is intended to access a child managed object within Cisco’s ACI. The current placement of line 2 (dnQuery.subtree = 'parent') specifies that the query should look at the parent objects, not the children. To fix the code so that it accesses a child managed object, line 2 should be moved to after line 3, where tenantMo is defined. This change will ensure that the subtree of tenantMo is set to ‘parent’, which means that when defaultBDmo is called in line 4, it will correctly reference a child managed object under tenantMo. References :=

Cisco ACI documentation on Managed Objects

Cisco DevNet ACI Programmability Guide

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

 In the context of Cisco UCS, filters are used in query strings to specify criteria for retrieving information about compute blades. The correct filter is “(num_of_cpus eq 2) and (discovery eq complete)” because it specifies that we are looking for compute blades with exactly two CPUs (num_of_cpus eq 2) and where the discovery status is ‘complete’ (discovery eq complete). This ensures that only compute blades that have been fully discovered by UCS Manager and have exactly two CPUs will be returned by the query.

References:

Implementing Automation for Cisco Data Center Solutions (DCAUI)

Cisco Learning Network - Data Center Training Videos

 To retrieve server profiles with “WEST15” in the name, the correct GET API request is D. GET https://intersight.com/api/v1/server/Profiles?$select=Name &$filter=startswith(Name, ‘WEST15’). This request filters the server profiles to only those that start with “WEST15”. For updating the name, option E is correct. The BODY = {” Name”: sp_name.replace(‘WEST15’,’LXT14’)} uses the Python replace method to change “WEST15” to “LXT14” in the server profile name. References: Cisco Intersight API documentation and Python programming resources.

 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’)

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

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 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

 The Cisco UCS PowerTool is a PowerShell module that provides an interface to Cisco Unified Computing System (UCS) Manager API. To initiate a connection to the Cisco UCS Manager, the ‘Connect-Ucs’ cmdlet is used. This cmdlet requires parameters such as the name of the UCS domain (in this case, ‘myucsm.example.com’) and credentials stored in a variable (here represented as ‘$ucsm_creds’). The credentials are typically created beforehand using the ‘New-Object’ cmdlet with a PSCredential object type, which securely stores the username and password required for authentication. References := Cisco UCS PowerTool Suite - PowerShell Libraries for Cisco UCS Manager

 The code snippet is intended to configure VLAN 10 in Cisco UCS. After creating the VLAN object and adding it with handle.add_mo(newvlan), it is essential to commit the changes to the UCS Manager for them to take effect. This is done by invoking handle.commit(). Without this step, the changes will not be saved, and VLAN 10 will not be configured.

Cisco UCS Manager API Reference Guide