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What is the main function of the 'Cache-Control' header in HTTP?

Practice Questions

Q1
What is the main function of the 'Cache-Control' header in HTTP?
  1. To control the server load
  2. To manage client-side caching
  3. To specify the content type
  4. To authenticate users

Questions & Step-by-Step Solutions

What is the main function of the 'Cache-Control' header in HTTP?
  • Step 1: Understand that 'Cache-Control' is a part of HTTP headers.
  • Step 2: Know that HTTP headers are used to send information between the client (like a web browser) and the server.
  • Step 3: Realize that 'Cache-Control' tells the browser and other caching systems how to store and use resources (like images, scripts, etc.).
  • Step 4: Learn that it can specify rules like how long to keep a resource before checking for a new version.
  • Step 5: Remember that it helps improve website performance by reducing the need to download the same resources multiple times.
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