Which of the following is responsible for resolving a fully qualified domain name to the IP address?

A.
ARP

B.
DNS

C.
DHCP

D.
WINS

Explanation:
The DNS service resolves fully qualified domain names and host names to IP addresses.
Incorrect Answers:
A: The Address Resolution Protocol (ARP) is resolves an IP address to the MAC address. The MAC address is a Data Link layer address that is hard-coded to each network interface.
C: DHCP is responsible for assigning IP addresses another IP configuration options to hosts on a network. It does not provide any form of name resolution.
D: WINS resolves NetBIOS names to IP addresses.
References:
David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 82, 84, 112-113, 138-144.