300-435 Question #148: Real Exam Question with Answer & Explanation

The correct answer is B: discovery task ID and a status URL. Cisco Catalyst Center REST API POST responses for configuration tasks are asynchronous and return a task ID along with a status URL so the caller can poll for completion.

Controller-Based Network Automation

Question

Refer to the exhibit. A POST request is sent to the Cisco Catalyst Center (formerly DNA Center) REST API to implement a network configuration change. Which information must be included in the response block?

Options

Aprogress of the discovery task
Bdiscovery task ID and a status URL
Clist of discovered devices
D403 - Unauthorized message

Explanation

Cisco Catalyst Center REST API POST responses for configuration tasks are asynchronous and return a task ID along with a status URL so the caller can poll for completion.

Common mistakes.

A. Discovery progress is a separate concern tracked through the task polling mechanism - it is not returned directly in the initial POST response block.
C. A list of discovered devices is the final result of a completed discovery task, retrieved after polling the task status URL, not in the initial response.
D. A 403 Unauthorized message would indicate missing or invalid authentication credentials, not a successful POST response.

Concept tested. Cisco Catalyst Center async POST response task ID

Reference. https://developer.cisco.com/docs/dna-center/api/2-3-7/

Topics

#Cisco Catalyst Center API#REST API#Asynchronous Operations#Task Management

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