ssh Interview Questions and Answers¶

Introduction¶

These questions test whether you understand what ssh does, when to use it, and how to verify the result on Linux.

Beginner Questions¶

What does ssh do?

It opens secure remote shell sessions and runs remote commands.

Show a basic command.

ssh admin@server.example.com

Intermediate Questions¶

Name useful options.

• -p: connect to a custom port.
• -i: use an identity file.
• -v: show debug output.

Show a common administrator command.

ssh admin@server.example.com hostname

Scenario-Based Questions¶

How would you handle SSH key authentication?

ssh-keygen -t ed25519

What would you verify afterward?

ssh -V

Expected output should look similar to:

OpenSSH_9.6p1, OpenSSL 3.0.7 1 Nov 2022

Practical Task Questions¶

Practice in a lab by running a safe version of the command, explaining the target, and showing the verification output.

Quick Review¶

ssh admin@server.example.com
ssh admin@server.example.com hostname
ssh -V

Related Guides¶

• What is ssh?
• ssh examples
• SSH key authentication explained
• SSH Config File Examples

Summary¶

A strong ssh answer includes the purpose, a correct example, a common mistake, and a verification command with output you can interpret.