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What is the purpose of the HTTP 'Cache-Control' header?

Practice Questions

Q1
What is the purpose of the HTTP 'Cache-Control' header?
  1. To control the caching behavior of browsers
  2. To specify the content type
  3. To manage user sessions
  4. To redirect requests

Questions & Step-by-Step Solutions

What is the purpose of the HTTP 'Cache-Control' header?
  • Step 1: Understand that HTTP is a protocol used for transferring data on the web.
  • Step 2: Know that caching is a way to store copies of files or data to make future requests faster.
  • Step 3: Learn that the 'Cache-Control' header is a part of HTTP messages.
  • Step 4: Realize that this header tells browsers and servers how to handle caching.
  • Step 5: Identify that it can include instructions like 'no-cache' (don't use the cached version) or 'max-age=3600' (cache for 1 hour).
  • Step 6: Understand that using 'Cache-Control' helps improve website performance and reduce server load.
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