300-435 Question 18
Select 4A network automation engineer is designing a solution to integrate with Cisco DNA Center using its REST API. The engineer must decide whether to use synchronous or asynchronous API calls for a large number of device configuration updates. What are some challenges or patterns they should consider when choosing between synchronous and asynchronous API consumption?
- A
Synchronous APIs can lead to increased latency during large-volume operations, potentially causing timeouts.
- B
Asynchronous APIs require additional logic to handle callbacks or polling for the final result.
- C
Synchronous APIs are always the most efficient option for high-volume, real-time operations.
- D
Asynchronous API patterns are ideal for tasks where immediate responses are critical.
- E
Synchronous APIs are simpler to implement but may not scale well under heavy workloads.
- F
Asynchronous APIs allow for better scalability and resource utilization in high-volume scenarios.
Show answer and explanation
Correct answers: A, B, E, F
Explanation
When choosing between synchronous and asynchronous API consumption, it is important to consider the trade-offs. Synchronous APIs are simpler but can suffer from latency and scalability issues under heavy workloads. Asynchronous APIs require more complex implementation, but they offer better scalability and resource utilization, particularly in high-volume scenarios. Engineers must evaluate the specific requirements of their use case, such as response time needs and workload size, to make an informed decision.
- A. Correct.
Synchronous APIs can lead to increased latency and potential timeouts during large-volume operations, as they require the client to wait for the server's response before proceeding.
- B. Correct.
Asynchronous APIs require additional logic to handle callbacks, event listeners, or polling mechanisms to retrieve the final result, making implementation more complex.
- C. Incorrect.
This is incorrect because synchronous APIs are not always the most efficient for high-volume operations, as they can cause bottlenecks and resource blocking.
- D. Incorrect.
This is incorrect because asynchronous API patterns are better suited for tasks where responsiveness and scalability are more important than immediate responses.
- E. Correct.
Synchronous APIs are simpler to implement since they follow a request-response pattern, but they may struggle to handle heavy workloads due to their blocking nature.
- F. Correct.
Asynchronous APIs enable better scalability and resource utilization by allowing the client to perform other tasks while waiting for the server's response.