300-435 Question 15
Select 3A network automation engineer is developing a solution to retrieve device configurations using a REST API. The engineer needs to decide whether to use a synchronous or asynchronous API consumption pattern. Which of the following statements accurately describes the challenges or patterns associated with synchronous and asynchronous API consumption in this scenario?
- A
Synchronous API consumption may cause delays if the API response time is high, as the client waits for the response.
- B
Asynchronous API consumption allows the client to execute other tasks without waiting for the API response, but it increases code complexity.
- C
Asynchronous API consumption is preferable when immediate responses are critical for business logic.
- D
Synchronous API consumption simplifies error handling because responses are received immediately in the same flow.
- E
Asynchronous API consumption eliminates the need for callback mechanisms or polling to handle responses.
Show answer and explanation
Correct answers: A, B, D
Explanation
Understanding the trade-offs between synchronous and asynchronous API consumption is crucial for automation engineers. Synchronous APIs are simpler to implement and handle but can lead to delays when response times are high. Asynchronous APIs allow for non-blocking operations, enabling other tasks to execute while waiting for responses, but they introduce complexity with callbacks or polling mechanisms. Choosing the right pattern depends on the specific requirements of the use case, such as response time sensitivity and implementation complexity.
- A. Correct.
Correct: In synchronous API consumption, the client waits for the API response, which can lead to delays if the API response time is high.
- B. Correct.
Correct: Asynchronous API consumption allows the client to continue executing other tasks while waiting for the API response, but this often requires more complex code to handle callbacks or responses.
- C. Incorrect.
Incorrect: Asynchronous API consumption is not ideal when immediate responses are critical, as there is no guarantee of an immediate response.
- D. Correct.
Correct: Synchronous API consumption simplifies error handling as the client processes the response immediately in the same request-response flow.
- E. Incorrect.
Incorrect: Asynchronous API consumption often requires callback mechanisms or periodic polling to handle responses, rather than eliminating the need for them.