SY0-301 · Question #771
By default, which of the following uses TCP port 22? (Select THREE).
The correct answer is D. SCP G. SSH H. SFTP. TCP port 22 is assigned to the SSH (Secure Shell) protocol, which provides encrypted remote access. Both SCP (Secure Copy Protocol) and SFTP (SSH File Transfer Protocol) are built on top of the SSH protocol and therefore also use TCP port 22 by default. The other options use…
Question
By default, which of the following uses TCP port 22? (Select THREE).
Options
- AFTPS
- BSTELNET
- CTLS
- DSCP
- ESSL
- FHTTPS
- GSSH
- HSFTP
How the community answered
(39 responses)- A3% (1)
- C5% (2)
- D90% (35)
- E3% (1)
Explanation
TCP port 22 is assigned to the SSH (Secure Shell) protocol, which provides encrypted remote access. Both SCP (Secure Copy Protocol) and SFTP (SSH File Transfer Protocol) are built on top of the SSH protocol and therefore also use TCP port 22 by default. The other options use different ports: FTPS uses ports 989/990, HTTPS uses port 443, SSL and TLS are cryptographic protocols rather than application services with their own dedicated ports, and STELNET is not a standard protocol (Telnet uses port 23). The key concept is that SCP and SFTP leverage the SSH session for transport, inheriting its port.
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