350-401 Question #797: Real Exam Question with Answer & Explanation

Question

Which free application has the ability to make REST calls against Cisco DNA Center?

Options

• AAPI Explorer
• BREST Explorer
• CPostman
• DMozilla

Explanation

Postman is a widely used, free API development and testing tool that allows users to make REST API calls, including those against Cisco DNA Center. It provides a graphical interface where users can construct HTTP requests (GET, POST, PUT, DELETE), add headers, include authentication tokens, and view structured responses - making it ideal for interacting with Cisco DNA Center's northbound REST APIs.

Why the distractors are wrong:

• API Explorer is a built-in tool within Cisco DNA Center itself used to browse and test APIs, but it is not a standalone free application.
• REST Explorer is not a recognized, widely known standalone application in the context of Cisco networking tools.
• Mozilla is a web browser (Firefox), not an API testing tool - while browsers can make basic GET requests, they lack the full REST testing capabilities needed for Cisco DNA Center.

Memory Tip: Think of "P" for Postman = "P" for Professional API testing - it's the industry-standard go-to tool for REST API calls, and Cisco consistently references it in their DevNet documentation and exam content. If you see an exam question about testing REST APIs externally, Postman is almost always the answer.

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