Last Attempt 200-901 Questions

The YANG model provided in the exhibit defines the structure for interface information, including fields for name, admin-status, if-index, and statistics. The correct XML snippet must match this structure and use the appropriate namespaces and field names as defined in the YANG model.

Namespace: The XML must include the namespace urn:ietf:params:xml:ns:yang:ietf-interfaces and the prefix if.

Interface Information: The XML must include elements for name, admin-status, if-index, and statistics as defined in the YANG model.

Field Names and Values: The field names must match the YANG model (admin-status, if-index, in-octets, in-unicast-pkts).

Option D is the correct XML snippet because it accurately conforms to the YANG model. It includes the required elements and correctly uses the namespace and field names:

GigabitEthernet1

1

1

408164820

728061

The provided diff format shows changes between two versions of a file. The + signs indicate lines that have been added in the new file (new.py). The code snippet that belongs to the new file is the one with + signs, showing the addition of code to print the device list filtered by hostname. The added lines include printing the message and setting the query_string_params to filter by hostname.

pyATS (Python Automated Test Systems) is a comprehensive testing framework developed by Cisco, designed specifically for automating the testing of network devices. It provides a robust and flexible environment for creating and running tests on network devices and simulating network automation scenarios.

pyATS enables the creation of reusable test scripts and workflows that can be applied across different network environments and devices.

It supports various protocols and devices, allowing for extensive testing coverage.

It integrates well with other Cisco network automation tools and frameworks, making it a versatile choice for network engineers and developers.

References:

Cisco DevNet pyATS documentation

Cisco DevNet Associate Certification Guide

Version control systems (VCS) like Git provide numerous benefits, with one of the primary ones being the ability to track development changes. This means that every change made to the codebase is recorded along with information about who made the change, when it was made, and why. This allows teams to collaborate effectively, revert to previous versions if necessary, and understand the history of the project.

Other benefits of version control include:

Collaboration: Multiple developers can work on the same project simultaneously without overwriting each other’s work.

Branching and Merging: Developers can work on different features or bug fixes in isolation and merge their changes back into the main codebase once they are ready.

Backup: The entire history of the project is stored in the VCS, providing a backup that can be restored if necessary.

References:

Cisco DevNet Associate Certification Guide

Pro Git Book, Chapter on Getting Started