Which of the following protocol are used for access across a network to a remote host but through
a terminal window?

A.
Telnet

B.
HTTP

C.
SFTP

D.
IMAP4

Explanation:
Telnet is a terminal emulation protocol that provides a remote logon to another host over the
network. The SSH protocol is used to establish a secure Telnet session over TCP/IP. It can thus
be used instead of Telnet.
Incorrect Answers:
B: HTTP is a protocol that is used by a web browser to communicate with web severs. It does not
provide remote access through a terminal window.
C: SFTP is a protocol that is used to transmit data securely between an FTP client and an FTP
server. It does not provide remote access through a terminal window.
D: IMAP4 is a protocol that is used to transmit e-mail between an e-mail client and an e-mail
server. It does not provide remote access through a terminal window.Reference:David Groth and
Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 117, 297.