[Solved] If a server sends this header:Cache-Control: no-cacheWhat does it instruct the client to do? — Ans: Cache the response but revalidate before use | Rest API

Rest API - Request and Response Format

If a server sends this header:

Cache-Control: no-cache

What does it instruct the client to do?

ACache the response but revalidate before use

BNever cache the response

CCache the response and use without revalidation

DCache the response only on public networks

Step-by-Step Solution

Solution:

Step 1: Understand no-cache directive
'no-cache' means the client can store the response but must check with the server before using it.
Step 2: Compare with other options
It does not prevent caching entirely (that's no-store), nor does it allow use without revalidation.
Final Answer:
Cache the response but revalidate before use -> Option A
Quick Check:
no-cache = Cache with revalidation [OK]

Quick Trick: no-cache means cache but always revalidate first [OK]

Common Mistakes:

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