Cisco 350-601 Practice Test - Questions Answers, Page 22

Embedded Event Manager (EEM) is a powerful tool used in Cisco devices, including MDS switches, to automate tasks and create custom scripts that react to network events. For an administrator needing to configure an automated policy to shut down a link when a threshold is exceeded, EEM is the appropriate feature to use. It allows the creation of event-driven automation scripts that can be triggered when certain conditions are met, such as a link exceeding a specified threshold.

Ansible is known for its agentless architecture, which means it does not require a software agent to be installed on the target nodes it manages. This contrasts with tools like Puppet and Chef, which typically require an agent to be installed on each node. Ansible uses SSH or WinRM to communicate with the nodes, making it simpler and more secure as it reduces the attack surface and the overhead of managing agents.

In a Cisco NX-OS environment, Ansible requires the NX-API to be enabled for HTTP/HTTPS protocol communication. NX-API is a REST-like API for NX-OS, providing a method for external applications to access the switch over HTTP/HTTPS, allowing for both CLI and simple object-based programming. This is necessary for Ansible to manage the device and execute automation tasks over these protocols.

POAP is an automatic provisioning and zero-touch deployment feature that assists device owners in the initial deployment and configuration of Nexus switches.

The feature works by checking for a local configuration script. If the script has been deleted, the switch has been reset to factory settings, or this is the first boot-up, the POAP daemon will connect to a preset list of servers to download an initial configuration file.

To perform this operation, the switch must first obtain an IP address from a local DHCP server. POAP

configuration settings can also be passed through the DHCP response.

Which conditions should be verified, so they need to be TRUE. Like no startup (A) and bootup (B). C means that it needs to miss a license file and E means it needs to miss an NX-OS image.

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/93x/system-management/b-cisco-nexus-9000-series-nx-os-system-management-configuration-guide-93x/b-cisco-nexus-9000-series-nx-os-system-management-configuration-guide-93x_chapter_0100010.html

The following example modifies an overridden policy by changing the number of FCNS database entries to 1500. It also generates both the configured and the default syslog messages of the default system policy event manager applet fcns_policy override __fcns_entries_max_per_switch event fcns entries max-per-switch 1500 action 1.0 syslog priority warnings msg FCNS DB entries have reached the EEM limit.

To configure an application profile using REST API, the engineer needs to first authenticate with the APIC using the POST method to the aaaLogin URI. This will return a token that can be used for subsequent requests. The error message indicates that the token is missing or expired, so the engineer needs to perform the POST to aaaLogin method again before configuring the application profile.Reference:= [Cisco APIC REST API Configuration Guide]

Cisco NX-OS Data Management Engine (DME) model is a hierarchical representation of the configuration and operational state of the Cisco NX-OS devices. It supports multiple protocols for accessing and manipulating the data, such as NETCONF, RESTCONF, gRPC, and CLI. Among these, NETCONF is the recommended technology for managing a large-scale data center and collecting information from multiple Cisco NX-OS devices using DME model, because it provides a standard, secure, and scalable way of communicating with network devices.Reference:= [Cisco NX-OS Data Management Engine Model]

NX-API Sandbox is a utility that allows the engineer to translate traditional Nexus CLI inputs and generate Python code using XML and JSON message formats. It is available on a Nexus 7700 series switch as a web-based tool that can be accessed from a browser. It provides a graphical interface for entering CLI commands and viewing the corresponding Python code and output. It also allows the engineer to execute the Python code directly on the switch or copy it to a script file.Reference:= [Cisco Nexus 7000 Series NX-OS Programmability Guide]