Explain What Is Unique to NGINX as a Cache Server F5N2 Practice Questions (Page 6)

Questions 26–26

1. 26expert · hard

   A high-traffic site uses NGINX caching with a large cache size. They notice that cache hit ratio is high, but the origin server still receives a significant number of requests. They suspect that cache revalidation is causing the load. They have enabled proxy_cache_revalidate on. What is the trade-off they are experiencing?

   • ARevalidation increases cache hit ratio but causes stale content to be served.
   • BRevalidation reduces origin load but increases latency for users.
   • CRevalidation reduces bandwidth but increases origin requests because every cache hit requires a conditional request.
   • DRevalidation has no effect on origin load; it only affects cache storage.
   Reveal Solution Discussion Select an answer first