Exam AZ-204 topic 5 question 54 discussion

The question explicitly asks how to increase the amount of space available; also, volatile-lru is the default setting for maxmemory-policy, and the question explicitly tells us that we have defaults set. I would go with A instead.

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(Option B) is incorrect because increasing maxmemory-reserved reduces the memory available for caching data, which would decrease the space available for reads. (Option C) is not appropriate because setting the Maxmemory policy to noeviction stops Redis from evicting any data. While this ensures no data is lost due to eviction, it also means that once the cache is full, new data can’t be added, reducing cache efficiency for both reads and writes. (Option D), which sets the Maxmemory policy to volatile-lru, is likely already the default policy in the Standard tier. It evicts less frequently accessed data with an expiration, optimizing memory usage. However, this doesn’t increase the total available memory for read operations, especially if the current policy is already set to an eviction-based policy like volatile-lru. Sorry for not providing a doc link.