Which of the following protocols is used to transmit e-mail between the two e-mail servers?
A.
Post Office Protocol, version 3 (POP3)
B.
Simple Mail Transfer Protocol (SMTP)
C.
Internet Control Message Protocol (ICMP)
D.
Internet Message Access Protocol, version 4 (IMAP4)
Explanation:
SMTP (Simple Mail Transfer Protocol) is used for sending e-mail messages.
Incorrect Answers:
A, D: POP3 and IMAP4 transmit e-mail between the e-mail client and the e-mail server.
C: ICMP (Internet Control Message Protocol) is used for network management and control. It provides error testing and reporting for TCP/IP.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 18-25.
David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 78-79, 116, 207.