Implementing Automation for Cisco Data Center Solutions (DCAUTO) — Question 2

Which statement about synchronous and asynchronous API calls is true?

Answer options

• A. Synchronous API calls wait to return until a response has been received.
• B. Synchronous communication is harder to follow and troubleshoot.
• C. Synchronous API calls must always use a proxy server.
• D. Asynchronous communication uses more overhead for client authentication.

Correct answer: A

Explanation

The correct answer is A because synchronous API calls indeed halt execution until a response is received, ensuring that the client waits for the server's reply. Option B is incorrect as synchronous communication can be easier to follow due to its linear nature. Option C is false since synchronous API calls do not inherently require a proxy server. Option D is also incorrect; while asynchronous communication can have overhead, it is not specifically tied to client authentication.