Define a Minimum Retention Policy F5N2 Practice Questions (Page 1)

Questions 1–4

1. 1foundation · easy

   How does a minimum retention policy interact with cache expiration and revalidation in NGINX?

   • AIt forces NGINX to revalidate the cached response with the origin server before the minimum period expires.
   • BIt ensures that NGINX serves the cached response for at least the minimum period, even if the origin indicates a shorter freshness lifetime, and only then considers revalidation.
   • CIt causes NGINX to ignore the origin's expiration headers entirely and never revalidate.
   • DIt makes NGINX revalidate the cached response on every request, regardless of the minimum period.
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2. 2foundation · easy

   In the context of NGINX content caching, what does a 'minimum retention policy' define?

   • AThe minimum duration that a cached response is kept and served before it is considered stale and eligible for revalidation.
   • BThe minimum number of requests required before a response is cached at all.
   • CThe maximum amount of time a cached response can be served before it must be revalidated with the origin server.
   • DThe minimum size of a response that is eligible to be stored in the cache.
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4. 3foundation · easy

   An administrator wants to ensure that a cached response is only stored after it has been requested at least three times. Which directive accomplishes this?

   • Aproxy_cache_path /var/cache levels=1:2 keys_zone=my_cache:10m max_size=1g;
   • Bproxy_cache_min_uses 3;
   • Cproxy_cache_key "$host$request_uri";
   • Dproxy_cache_valid 3m;
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5. 4foundation · easy

   Which NGINX directive is used to define how long cached responses with specific HTTP status codes are considered valid, thereby enforcing a minimum retention period?

   • Aproxy_cache_path
   • Bproxy_cache_valid
   • Cproxy_cache_min_uses
   • Dproxy_cache_key
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