Describe How and Why NGINX Uses Shared Memory Zones F5N1 Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   An administrator is configuring NGINX for a new service that requires both rate limiting and connection limiting. They have defined a shared memory zone for rate limiting. What additional configuration is needed for connection limiting?

   • ASet the worker_connections directive to a high value to limit connections.
   • BUse the same rate-limiting zone with the limit_conn directive.
   • CUse the limit_rate directive to limit the connection speed.
   • DDefine a separate shared memory zone using limit_conn_zone and reference it with limit_conn.
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   What is the primary purpose of shared memory zones in NGINX?

   • ATo allow worker processes to share runtime data such as counters and keys
   • BTo cache static files on disk for faster serving
   • CTo store configuration directives that are shared across all worker processes
   • DTo isolate worker processes from each other for security
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   Which statement accurately describes how shared memory zones function in NGINX?

   • AThey are allocated in the master process and copied to each worker at startup
   • BThey exist as a single memory region mapped into the address space of every worker process
   • CThey are stored in a file on disk and loaded into memory on demand
   • DEach worker process has its own private copy of the zone, updated independently
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5. 19foundation · easy

   Which NGINX directive is used to define a shared memory zone for rate limiting?

   • Aproxy_cache_path
   • Blimit_req_zone
   • Cserver
   • Dupstream
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6. 20foundation · easy

   What is a primary benefit of using shared memory zones in NGINX?

   • AThey automatically balance load across backend servers
   • BThey increase the maximum number of worker processes allowed
   • CThey eliminate the need for configuration reloads
   • DThey allow worker processes to share state, ensuring consistent behavior across all workers
   Reveal Solution Discussion Select an answer first