Identify Ways to Optimize API Usage Through HTTP Cache Controls 350-901 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   An API returns a user's profile data, which is different for each authenticated user. Which caching strategy is most appropriate for this response?

   • ACache with no-store directive
   • BCache with a long max-age and no-cache directive
   • CCache with a long max-age and public directive
   • DCache with a short max-age and private directive
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   A client sends a request with the header `If-None-Match: "abc123"`. What does this conditional request accomplish?

   • AIt tells the server to return the resource only if its current ETag does not match the given value
   • BIt asks the server to update the ETag to a new value
   • CIt instructs the server to bypass all caches and always return a fresh response
   • DIt requests only the first 123 bytes of the resource
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   Which HTTP header provides an absolute date/time after which the response is considered stale?

   • ALast-Modified
   • BETag
   • CCache-Control
   • DExpires
   Reveal Solution Discussion Select an answer first
5. 4application · medium

   A client receives a response with the following headers: Cache-Control: max-age=3600, ETag: "abc123", Last-Modified: Wed, 01 Jan 2025 00:00:00 GMT. After 30 minutes, the client makes a request for the same resource. What should the client do?

   • ASend a conditional request with If-None-Match: "abc123"
   • BSend a conditional request with If-Modified-Since: Wed, 01 Jan 2025 00:00:00 GMT
   • CDiscard the cached copy and fetch the full response
   • DUse the cached copy without contacting the server
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   An API response includes `Cache-Control: no-store`. What does this directive instruct caches to do?

   • AStore the response only in the browser's private cache
   • BStore the response but always revalidate it before serving
   • CNot store any part of the response in any cache
   • DStore the response for a maximum of 60 seconds
   Reveal Solution Discussion Select an answer first