An NGINX caching proxy serves a website that uses both desktop and mobile versions. The mobile version is served when the User-Agent header indicates a mobile device. The team wants to cache both versions separately. What is the best way to achieve this?

Include a normalized device type (e.g., $mobile) in the cache key.

Use proxy_cache_bypass for mobile requests.

Set cache_valid to a different value for mobile requests.

Include the full User-Agent header in the cache key.

A media company serves large video files from an upstream origin. They want to reduce origin load and improve response times for repeat requests. They plan to use NGINX as a caching reverse proxy. Which configuration approach best meets this need?

Define a cache zone with proxy_cache_path, enable proxy_cache for the location, and set cache_valid for the video content type.

Use fastcgi_cache_path and fastcgi_cache for the video location to cache responses from the upstream.

Enable gzip compression on the video responses to reduce bandwidth and improve delivery speed.

Set proxy_cache off for the video location to ensure the origin always serves fresh content.

An NGINX caching proxy serves a website that updates content frequently. The team needs to invalidate cached content immediately when updates are published. They have the ngx_cache_purge module installed. However, they are concerned about security, as anyone could send a PURGE request and delete cache entries. What is the best way to secure the PURGE functionality?

Restrict PURGE requests to specific IP addresses using allow/deny directives.

Set proxy_cache_bypass for all requests to avoid needing PURGE.

Disable PURGE requests and rely on cache_valid expiry.

Use a complex PURGE URL that is not publicly known.

A company uses NGINX caching for a high-traffic API. The cache hit ratio is high, but the origin still receives a large number of requests. The team suspects that cache misses are due to cache eviction. They have limited disk space. What is the best way to improve the hit ratio without adding more disk?

Disable caching for low-traffic endpoints.

Reduce the cache_valid time for less dynamic content to free space for more popular items.

Set proxy_cache off for all requests and rely on the origin.

Increase the keys_zone size to store more keys.

F5Certified Administrator NGINX

Domain 1Objective 4

Describe NGINX as a Caching Solution F5N1 Practice Questions (Page 2)

Part of the Given a scenario identify when to use NGINX domain, which makes up ~37% of our current practice bank. F5 does not publish an official question count, but from its 30-minute exam (~10–20 total, ~4–7 in this domain), expect 1–1 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

6concepts

Questions 6–10

6expert · hard
An NGINX caching proxy serves a website that uses both desktop and mobile versions. The mobile version is served when the User-Agent header indicates a mobile device. The team wants to cache both versions separately. What is the best way to achieve this?
Select an answer first
7application · medium
A media company serves large video files from an upstream origin. They want to reduce origin load and improve response times for repeat requests. They plan to use NGINX as a caching reverse proxy. Which configuration approach best meets this need?
Select an answer first
8expert · hard
An NGINX caching proxy serves a website that updates content frequently. The team needs to invalidate cached content immediately when updates are published. They have the ngx_cache_purge module installed. However, they are concerned about security, as anyone could send a PURGE request and delete cache entries. What is the best way to secure the PURGE functionality?
Select an answer first
9expert · hard
A company uses NGINX caching for a high-traffic API. The cache hit ratio is high, but the origin still receives a large number of requests. The team suspects that cache misses are due to cache eviction. They have limited disk space. What is the best way to improve the hit ratio without adding more disk?
Select an answer first
10foundation · easy
Which directive defines the cache location and common cache parameters in NGINX?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to F5N1

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by F5. “F5N1” is a trademark of its owner, used for identification only.

Describe NGINX as a Caching Solution F5N1 Practice Questions (Page 2)

Questions 6–10

An NGINX caching proxy serves a website that uses both desktop and mobile versions. The mobile version is served when the User-Agent header indicates a mobile device. The team wants to cache both versions separately. What is the best way to achieve this?

A media company serves large video files from an upstream origin. They want to reduce origin load and improve response times for repeat requests. They plan to use NGINX as a caching reverse proxy. Which configuration approach best meets this need?

Which directive defines the cache location and common cache parameters in NGINX?

Keep studying — Given a scenario identify when to use NGINX