Explain What Is Unique to NGINX as a Web Server F5N2 Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   What is a key advantage of NGINX's event-driven architecture over a thread-per-connection model?

   • AIt reduces the memory and CPU overhead required per connection.
   • BIt simplifies configuration by using a single configuration file for all connections.
   • CIt allows each connection to run in its own isolated memory space.
   • DIt guarantees that a slow client cannot affect other connections.
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2. 22application · medium

   A developer wants to add a new feature to NGINX that is not included in the standard build. They want to avoid recompiling the entire NGINX binary. Which approach is supported by NGINX's modular architecture?

   • AUse the `include` directive to load a script that adds the feature.
   • BWrite a configuration snippet that implements the feature using existing directives.
   • CCompile the feature as a dynamic module and load it with `load_module`.
   • DReplace the NGINX binary with a custom version that includes the feature.
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4. 23application · medium

   A media company serves large static video files to users. They want to minimize CPU usage on the web server while transferring these files. Which NGINX feature should they enable to allow the kernel to handle the file transfer directly from disk to the network socket?

   • ASet `worker_processes auto;` to increase the number of workers handling the transfer.
   • BEnable `gzip on;` to compress the video files before sending.
   • CConfigure `proxy_cache` to cache the video files in memory.
   • DEnable `sendfile on;` in the server configuration.
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5. 24foundation · easy

   How does NGINX's master-worker process model improve reliability?

   • AIf a worker process crashes, the master process can restart it, minimizing downtime.
   • BThe master process handles all requests, so worker failures are irrelevant.
   • CEach worker process runs in a separate virtual machine, isolating failures.
   • DWorker processes automatically restart the master if it crashes.
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6. 25application · medium

   An NGINX administrator needs to apply a new configuration that changes the number of worker processes. They want to avoid any downtime. Which command should they use?

   • A`nginx -s reload`
   • B`nginx -t`
   • C`nginx -s stop`
   • D`kill -9 <master_pid>`
   Reveal Solution Discussion Select an answer first