Which device distributes client requests among multiple resources to provide fault tolerance and improved throughput?

Which device distributes client requests among multiple resources to provide fault tolerance and improved throughput?

• A. NGFW
• B. UTM
• C. Load balancer
• D. Snort

Answer: (C)

Distributing client requests across multiple resources to improve availability and throughput is the function of a load balancer. A load balancer sits in front of a pool of servers or services and directs incoming traffic to one of them based on chosen criteria, such as round-robin, the fewest active connections, or other health-aware rules. By constantly monitoring the health of each resource, it can stop sending traffic to a failed or unhealthy server, automatically rerouting requests to remaining servers to maintain service continuity. This not only keeps the system available even if individual resources go down (fault tolerance) but also prevents any single server from becoming a bottleneck, thereby increasing overall throughput. Load balancers can be hardware or software, and they may operate at different layers (for example, Layer 4 for basic distribution or Layer 7 for content-aware routing). While security devices like firewalls or IDS/IPS solutions have their own roles, the primary purpose of a load balancer is traffic distribution and redundancy, not inspection or threat detection.

Distributing client requests across multiple resources to improve availability and throughput is the function of a load balancer. A load balancer sits in front of a pool of servers or services and directs incoming traffic to one of them based on chosen criteria, such as round-robin, the fewest active connections, or other health-aware rules. By constantly monitoring the health of each resource, it can stop sending traffic to a failed or unhealthy server, automatically rerouting requests to remaining servers to maintain service continuity. This not only keeps the system available even if individual resources go down (fault tolerance) but also prevents any single server from becoming a bottleneck, thereby increasing overall throughput. Load balancers can be hardware or software, and they may operate at different layers (for example, Layer 4 for basic distribution or Layer 7 for content-aware routing). While security devices like firewalls or IDS/IPS solutions have their own roles, the primary purpose of a load balancer is traffic distribution and redundancy, not inspection or threat detection.