Load Balancing Fundamentals F5N2 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   An online banking application requires that a user's session remain on the same backend server for the duration of their login. The application does not support shared session state between servers. The infrastructure team uses NGINX as a load balancer in front of three backend servers. They have configured the upstream block with the ip_hash directive. What is the primary limitation of this approach that the team should be aware of?

   • AIf a user's IP address changes mid-session, they will be routed to a different server and lose their session.
   • BThe ip_hash directive only works when all backend servers have the same weight.
   • CThe ip_hash directive will not work if the backend servers are on different subnets.
   • DThe ip_hash directive requires a shared memory zone to track session state.
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   What is the primary purpose of a load balancing pool in NGINX?

   • ATo store static files that NGINX serves directly to clients without contacting backend servers
   • BTo group backend servers that receive client requests according to a defined distribution method
   • CTo cache responses from backend servers so that subsequent requests are served from cache
   • DTo define a set of firewall rules that filter incoming traffic before it reaches backend servers
   Reveal Solution Discussion Select an answer first
4. 3application · easy

   A company is setting up a new NGINX load balancer for a web application. The application is deployed on three backend servers, and the team wants to group them into a single logical unit for load balancing. Which NGINX configuration directive should they use to define this group?

   • AThe server directive inside the http block.
   • BThe proxy_pass directive inside the location block.
   • CThe upstream directive inside the http block.
   • DThe location directive inside the server block.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   What factors does the least_time algorithm consider when selecting a server?

   • AThe server's weight and the client's request method
   • BThe server's CPU and memory usage
   • CThe server's response time and the number of active connections
   • DThe server's IP address and the client's IP address
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   What is the default load balancing algorithm used by NGINX when no algorithm is specified in an upstream block?

   • Arandom
   • Bip_hash
   • Cround_robin
   • Dleast_conn
   Reveal Solution Discussion Select an answer first