Describe Different Types of Caching F5N2 Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   An NGINX reverse proxy caches responses from an upstream server. The upstream sends a Vary: Accept-Encoding header. What must NGINX do to cache responses correctly?

   • AInclude the Accept-Encoding header in the cache key.
   • BSet proxy_cache_valid to 0 to disable caching for responses with Vary.
   • CIgnore the Vary header and cache all responses together.
   • DUse proxy_cache_lock to handle Vary responses.
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   How does NGINX determine if a cached response is still valid?

   • ABy comparing the cached response's expiration time with the current time
   • BBy verifying the client's authentication token
   • CBy checking the cache key against the request
   • DBy checking if the backend server is reachable
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   What is a cache key in NGINX?

   • AA secret key used to encrypt cached data
   • BA password required to access the cache
   • CA timestamp indicating when the cache was created
   • DA unique identifier used to store and retrieve cached responses
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A company uses NGINX to cache static assets like images and CSS. They want to ensure that when the origin updates an asset, the new version is served to clients immediately, but they also want to leverage browser caching. Which HTTP header should the origin send to achieve this?

   • ACache-Control: private
   • BCache-Control: max-age=31536000
   • CCache-Control: no-store
   • DCache-Control: no-cache
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   Which of the following is a main type of caching that NGINX can perform?

   • ADNS caching
   • BClient-side caching
   • CDatabase caching
   • DProxy caching
   Reveal Solution Discussion Select an answer first