[Solved] If a DAX cache miss occurs for a GetItem request, what is the next step? - Ans: DAX queries DynamoDB, caches the result, then returns it | DynamoDB

DynamoDB - Cost Optimization and Monitoring

If a DAX cache miss occurs for a GetItem request, what is the next step?

ADAX queries DynamoDB, caches the result, then returns it

BDAX returns a null response immediately

CDAX retries the cache lookup three times before failing

DDAX writes a placeholder item to the cache and returns it

Step-by-Step Solution

Solution:

Step 1: Understand DAX cache miss flow
On cache miss, DAX fetches data from DynamoDB and caches it.
Step 2: Remove incorrect options
DAX does not return null immediately, retry cache lookups, or write placeholders.
Final Answer:
DAX queries DynamoDB, caches the result, then returns it -> Option A
Quick Check:
Cache miss triggers DynamoDB fetch and cache update [OK]

Quick Trick: Cache miss triggers DynamoDB fetch and cache update [OK]

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If a DAX cache miss occurs for a GetItem request, what is the next step?