Exam 350-901 topic 1 question 376 discussion

Actual exam question from Cisco's 350-901

Question #: 376
Topic #: 1

A developer deployed a web application in a local data center that is experiencing high traffic load from users that access data through REST API calls. Caching helps to enhance the responsiveness and performance of the API usage. Which approach must be used to improve cache performance?

A. Ensure that all read requests are clearly identified by the PUT method.
B. Implement surrogate key tagging to purge requests.
C. Use HTTP POST or other non-read methods for read requests when it is possible.
D. Configure the API payload to return errors in HTTP 200 responses.

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Suggested Answer: B 🗳️

by 1a63556 at Dec. 26, 2023, 5:05 p.m.

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Amycert

7 months, 4 weeks ago

Selected Answer: B

only B makes sense

upvoted 1 times

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1a63556

1 year, 4 months ago

Selected Answer: B

B. Implement surrogate key tagging to purge requests. Surrogate key tagging can significantly improve cache performance. It involves associating each cache item with a surrogate key. When an item is updated, instead of invalidating each cache item individually, you can invalidate all cache items associated with the surrogate key in one action, which is much more efficient. This approach is particularly useful when the same data is cached in multiple ways or when data is nested or complex.

upvoted 4 times

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