Which of the following uses TCP port 22 by default? (Choose three.)
A.
FTPS
B.
STELNET
C.
TLS
D.
SCP
E.
SSL
F.
HTTPS
G.
SSH
H.
SFTP
Explanation:
G: Secure Shell (SSH) is a cryptographic network protocol for securing data communication. It establishes a
secure channel over an insecure network in a client-server architecture, connecting an SSH client application
with an SSH server. Common applications include remote command-line login, remote command execution,
but any network service can be secured with SSH. SSH uses port 22.
D: SCP stands for Secure Copy. SCP is used to securely copy files over a network. SCP uses SSH to secure
the connection and therefore uses port 22.
H: SFTP stands for Secure File Transfer Protocol and is used for transferring files using FTP over a secure
network connection. SFTP uses SSH to secure the connection and therefore uses port 22.