CompTIA Network+ (N10-008) — Question 488

A customer runs a DNS lookup service and needs a network technician to reconfigure the network to improve performance. The customer wants to ensure that servers are accessed based on whichever one is topographically closest to the destination. If the server does not respond, then the next topographically closest server should respond. Which of the following does the technician need to configure to meet the requirements?

Answer options

Correct answer: B

Explanation

Anycast addressing allows multiple servers to share the same IP address, routing traffic to the nearest server based on network topology, which meets the customer's requirements. In contrast, multicast and broadcast addressing send packets to multiple hosts simultaneously, while unicast addressing directs packets to a single specific host, neither of which provide the desired proximity-based server access.