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N10-005 · Question #350

Which of the following BEST describes a load balancer?

The correct answer is A. A device that splits traffic between multiple nodes of a clustered service. A load balancer distributes incoming network or application traffic across multiple backend servers (nodes) in a cluster. This prevents any single server from becoming overwhelmed, improves availability, and increases responsiveness. Option B describes NAT/PAT, which maps…

Networking concepts

Question

Which of the following BEST describes a load balancer?

Options

  • AA device that splits traffic between multiple nodes of a clustered service.
  • BA device that allows multiple computers to access the internet through a single public IP address.
  • CA device that filters internet content based on rules and ACLs.
  • DA device that separates users onto separate WAPs for even distribution.

How the community answered

(61 responses)
  • A
    93% (57)
  • B
    2% (1)
  • C
    2% (1)
  • D
    3% (2)

Explanation

A load balancer distributes incoming network or application traffic across multiple backend servers (nodes) in a cluster. This prevents any single server from becoming overwhelmed, improves availability, and increases responsiveness. Option B describes NAT/PAT, which maps multiple private IPs to a single public IP. Option C describes a web content filter or proxy firewall with ACLs. Option D loosely describes a wireless controller or band-steering feature, not a load balancer. The defining characteristic of a load balancer is traffic distribution across multiple service instances.

Topics

#load balancing#high availability#traffic distribution#network appliances

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