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CCNA Practice Test
Routing and Switching
Security
Data Center
Service Provider
Voice
Wireless
CCNA Service Provider Practice Test
Question 1 of 3
Which of the following about SSH is true?
A
It securely encrypts Telnet.
B
Passwords are sent in clear text.
C
It is an OSI network layer protocol.
D
It is a TCP/IP transport layer protocol.
E
It uses TCP port number 22.
F
It uses UDP port 23.
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