Which device distributes incoming requests across multiple servers to optimize resource use?

Which device distributes incoming requests across multiple servers to optimize resource use?

• A. DNS
• B. Load Balancer
• C. RDP
• D. VNC

Answer: (B)

The idea is to balance load by distributing incoming requests across several servers so no single machine gets overwhelmed and resources are used efficiently. A load balancer sits between clients and a group of servers and picks a server for each new request using rules like round-robin or least connections. This keeps response times down, improves capacity and availability, and provides fault tolerance if one server goes down.

DNS translates a domain name to an IP address and can influence where users reach services, but it isn’t a dynamic, real-time traffic distributor—caching and propagation delays mean it can’t reliably balance current load. RDP and VNC are remote-access protocols for connecting to a single machine, not mechanisms for spreading work across multiple servers.