Describe How to Troubleshoot Location Precedence and Add_header Inheritance F5N4 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   An NGINX server is configured with add_header Cache-Control "no-store" at the server level. A location block for /api/ has add_header X-Request-ID "$request_id". A developer notices that responses from /api/ do not include the Cache-Control header. What is the most likely cause?

   • AThe Cache-Control header is not allowed in responses from API endpoints.
   • BThe server-level add_header is only applied to static files, not to proxied requests.
   • CThe add_header directive in the location block overrides the server-level add_header directives.
   • DThe X-Request-ID header is added after the Cache-Control header, so it is not visible.
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2. 2foundation · easy

   Which location block will NGINX select for a request to /download/app.zip when the configuration contains the following blocks?

   • Alocation /download/app.zip { ... }
   • Blocation /download/ { ... }
   • Clocation ^~ /download/ { ... }
   • Dlocation ~ \.zip$ { ... }
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4. 3application · medium

   An NGINX configuration has add_header X-Content-Type-Options "nosniff" at the http level. A server block for example.com has add_header X-Frame-Options "DENY". A location block for /static/ has no add_header directives. What headers are sent in responses for /static/logo.png?

   • ABoth X-Content-Type-Options: nosniff and X-Frame-Options: DENY
   • BOnly X-Frame-Options: DENY
   • CNo add_header directives are sent because the location block has none.
   • DOnly X-Content-Type-Options: nosniff
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5. 4foundation · easy

   In NGINX, how are add_header directives inherited from a parent context to a child context?

   • AChild contexts inherit all headers from the parent unless they define their own add_header directive.
   • BChild contexts always inherit headers from the parent, and parent headers are merged with child headers.
   • CChild contexts never inherit headers from the parent; they must define all headers explicitly.
   • DChild contexts inherit headers only if the parent uses the 'inherit' keyword.
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6. 5foundation · easy

   A request to /files/report.pdf unexpectedly matches a regex location instead of the intended prefix location. Which configuration mistake is the most likely cause?

   • AThe prefix location uses the = modifier.
   • BThe prefix location lacks the ^~ modifier.
   • CThe prefix location is shorter than the regex pattern.
   • DThe regex location is defined before the prefix location.
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