[Solved] Given this HTTP response header:Cache-Control: max-age=5If a client requests the same resource 7 seconds later, what will happen? | Rest API

Rest API - Caching Strategies

Given this HTTP response header:
Cache-Control: max-age=5
If a client requests the same resource 7 seconds later, what will happen?

AThe client will use the cached response without contacting the server

BThe client will revalidate the cache with the server before using it

CThe client will receive an error due to expired cache

DThe client will ignore the cache and request a fresh response from the server

Step-by-Step Solution

Solution:

Step 1: Understand max-age meaning
max-age=5 means cache is fresh for 5 seconds after response.
Step 2: Analyze client request after 7 seconds
After 7 seconds, cache is expired, so client must request fresh data.
Final Answer:
The client will ignore the cache and request a fresh response from the server -> Option D
Quick Check:
Cache expired after max-age seconds = fresh request [OK]

Quick Trick: Cache expires after max-age seconds, then client fetches fresh data [OK]

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