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Given a REST API with caching enabled, what happens when a client requests the same resource twice quickly?

medium📝 Predict Output Q4 of 15
Rest API - Caching Strategies
Given a REST API with caching enabled, what happens when a client requests the same resource twice quickly?
AThe server returns the cached response for the second request
BThe server processes both requests fully each time
CThe server returns an error for the second request
DThe server ignores the second request
Step-by-Step Solution
Solution:

  1. Step 1: Understand caching behavior on repeated requests

    When a resource is requested twice quickly, the server uses the cached response for the second request.

  2. Step 2: Confirm server does not reprocess or error

    The server avoids full processing again and does not ignore or error the request.

  3. Final Answer:

    The server returns the cached response for the second request -> Option A

  4. Quick Check:

    Repeated request uses cache = A [OK]
Quick Trick: Second quick request uses cached data [OK]
Common Mistakes:
MISTAKES
  • Assuming server processes both requests fully
  • Thinking second request causes error
  • Believing server ignores repeated requests

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