300-920 Xapi Practice Questions
The free 300-920: Developing Applications for Cisco Webex and Webex Devices (DEVWBX) questions that deal with xapi, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #3
Which xAPI access mechanism requires separate connections for commands and notifications?
Correct answer: C
Explanation
Each HTTP/HTTPS request closes after its response, so receiving event notifications requires a separate HttpFeedback connection. Serial, SSH, and WebSocket hold one session open and carry both commands and events.
Question #4
With CE 9.8 and above, which two statements are correct when an application is sending and receiving data over a connection established with an xAPI interface? (Choose two.)
Select 2 answers.
Correct answer: A, D
Explanation
Serial, SSH, and WebSockets each carry commands and events over a single connection (A). The HttpClient command sends an HTTP request and returns the response, so an application can both send and receive (D). HttpFeedback is not the only receive path.
Question #9
Which xAPI access mechanism requires separate connections for commands and notifications?
Correct answer: D
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