220-1101 Question #182: Real Exam Question with Answer & Explanation

The correct answer is B: 22. A technician needs to open the correct firewall port for managing switches using SSH.

Networking

Question

A technician requests a port be opened on the firewall in order to manage switches using SSH. Which of the following ports should be opened?

A technician needs to open the correct firewall port for managing switches using SSH.

Common mistakes.

A. Port 21 is the standard port for FTP (File Transfer Protocol), which is used for transferring files, not for SSH management.
C. Port 23 is the standard port for Telnet, which provides unencrypted remote access and is not secure for console management.
D. Port 25 is the standard port for SMTP (Simple Mail Transfer Protocol), which is used for sending email messages, not for SSH.

Concept tested. Standard port numbers for SSH

Reference. https://learn.microsoft.com/en-us/windows/security/threat-protection/windows-firewall/default-outbound-ports

#SSH#Port numbers#Networking protocols#Firewall

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