Describe the Difference Between Rate Limiting and Bandwidth Throttling F5N3 Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   Which NGINX directive is used to limit the rate at which data is sent to a client?

   • Alimit_conn
   • Bclient_max_body_size
   • Climit_req
   • Dlimit_rate
   Reveal Solution Discussion Select an answer first
2. 22expert · hard

   A cloud storage provider offers both a web interface and an API for file synchronization. The operations team has identified two abuse patterns: (1) a client is making 500 requests per second to the API, which is a request flood, and (2) a different client is downloading a single 10 GB file, saturating the network link. The team wants to protect the service from both patterns. Which NGINX configuration approach best addresses both issues?

   • AConfigure only a rate limit of 50 requests per second per IP address.
   • BSet the limit_conn_zone directive to limit each IP address to 10 connections.
   • CConfigure only a bandwidth throttle of 5 MB/s per IP address.
   • DConfigure a rate limit of 50 requests per second per IP address and a bandwidth throttle of 5 MB/s per IP address.
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A company runs a public-facing login portal. The security team has detected a credential-stuffing attack where an attacker is trying thousands of username/password combinations per minute from a single IP address. The login endpoint accepts small JSON payloads, so the network bandwidth usage is minimal. The company wants to block this attack while allowing legitimate users to log in. Which NGINX configuration should the administrator implement?

   • ASet a rate limit of 10 requests per minute per IP address.
   • BThrottle bandwidth to 50 KB/s per IP address.
   • CSet the keepalive_timeout to 0.
   • DIncrease the worker_connections directive to 4096.
   Reveal Solution Discussion Select an answer first
5. 24application · medium

   A university provides a public file-sharing service for students to download course materials, including large video lectures. During exam week, a few students use download accelerators that open many parallel connections, consuming most of the university's internet link and making the service unusable for others. The university wants to ensure all students can access the materials without one student monopolizing the link. Which NGINX configuration should be implemented?

   • ASet the tcp_nopush directive to on.
   • BSet a rate limit of 20 requests per minute per student IP address.
   • CSet a bandwidth throttle of 2 MB/s per student IP address.
   • DSet the sendfile_max_chunk directive to 1 MB.
   Reveal Solution Discussion Select an answer first
6. 25application · medium

   A software company hosts a public repository for downloading large ISO images of its products. The marketing team is about to launch a campaign that will drive many users to download these files. The company's network link has limited capacity, and the operations team wants to ensure that the link is not saturated so that the company's internal systems remain responsive. Which NGINX configuration should be implemented?

   • ASet the worker_processes directive to 4.
   • BSet a bandwidth throttle of 500 KB/s per IP address.
   • CSet a rate limit of 10 requests per minute per IP address.
   • DSet the gzip directive to on.
   Reveal Solution Discussion Select an answer first