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

In Cisco’s ACI, the Management Information Tree (MIT) uses several attributes to uniquely identify managed objects. ‘RN’ stands for Relative Name, which is the name of an object within its parent’s context. ‘DN’ stands for Distinguished Name, which is a unique name that includes the full path in the MIT hierarchy.

Cisco ACI Documentation

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

Cluster Isolation (B) and Namespace Isolation (E) are Kubernetes features that allow partitioning of cluster resources and application isolation. VM Isolation (A) is not specific to Kubernetes with SCCM plugin deployment, and Process Isolation (D) is not an application isolation type in this context. References: Cisco ACI APIC CLI Configuration

 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.

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

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 command telemetry_receiver.py --ip-address -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

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 Python script uses the ACI Cobra SDK to interact with Cisco’s Application Centric Infrastructure (ACI). It logs into the APIC and retrieves a list of all application profiles (‘fvAp’), then prints out their distinguished names (dn), which uniquely identify each application profile within the ACI fabric. References:

Cisco Developer Network

Cisco Learning Network

The correct iteration for creating three EPGs in Cisco ACI using an Ansible task is found in option C. This task utilizes the aci_epg module, which is part of Ansible’s suite of modules for managing Cisco ACI environments. The task includes a loop that iterates over a list of EPG names, creating each one in turn. This approach is efficient for automating the creation of multiple EPGs, reducing the need for repetitive task definitions. References := For more information on automating Cisco Data Center solutions, including the use of Ansible for task automation, you can refer to the official Cisco documentation and training resources such as the Implementing Automation for Cisco Data Center Solutions (DCAUI) course.

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 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

conf t

Event manager applet link monitor

Event syslog pattern “IF_UP”

Action 1 cli command “source cdp_description.py”

Exit

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

 The configuration snippet from a network device indicates that telemetry settings are being configured for Ethernet port 1/1. The data is collected and streamed to four different destinations, each with a unique port number. The sample-interval is set to ‘100000’, which is typically in microseconds. Therefore, the data is streamed every 100 milliseconds, as 100,000 microseconds equals 100 milliseconds.

References:

Implementing Automation for Cisco Data Center Solutions (DCAUI) course page.

Cisco Data Center Training Videos.

 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’)