Questions : CCNA Exams

This Application layer protocol resolves hostnames or fully qualified domain names (FQDNs) such as www.cisco.com into IP addresses.

A. SMTP
B. NFS
C. NNTP
D. DNS


Answer :
D. DNS resolves hostnames into IP addresses. Answer A is incorrect because SMTP sends electronic mail across the network. Answer B is incorrect because NFS allows users with different operating systems (that is, NT and Unix workstations) to share files. Answer C is incorrect because NNTP offers access to Usenet newsgroup postings.