Selecting a private key explicitly | LinuC Level 1 101 Exam original practice question

1.01.1Basic

Connect to server.example using ~/.ssh/project_key.

The key has a non-default name, so specify it on the command line.

Which command is appropriate?

Hint 1: Focus on the requirement

Identify what must change and what must remain unchanged. Then choose the command whose scope matches that requirement.

Hint 2: Check each command's role

Separate commands that display information, change state, remove data, or affect a child process.

ssh -p ~/.ssh/project_key server.example: Incorrect. -p selects a TCP port, not a key file.
ssh -k ~/.ssh/project_key server.example: Incorrect. -k does not select the identity file in this command.
ssh -K ~/.ssh/project_key server.example: Incorrect. -K is not the standard identity-file option.
ssh -i ~/.ssh/project_key server.example: Correct. ssh -i ~/.ssh/project_key server.example selects the specified key.

Detailed explanation

Incorrectssh -p ~/.ssh/project_key server.example

Incorrect. -p selects a TCP port, not a key file.

Incorrectssh -k ~/.ssh/project_key server.example

Incorrect. -k does not select the identity file in this command.

Incorrectssh -K ~/.ssh/project_key server.example

Incorrect. -K is not the standard identity-file option.

Correctssh -i ~/.ssh/project_key server.example

Correct. ssh -i ~/.ssh/project_key server.example selects the specified key.

An example you can run in a temporary verification environment.

ssh -G -i ~/.ssh/project_key server.example | grep '^identityfile'

接続せず、指定identity fileを含む設定を表示する

Foundation review

Check whether the command acts on the current shell, a new process, an existing process, or a file.

Use the supplied command and compare the output with the expected result.

Question IDKL-101-308

EnvironmentOpenSSH 9.x

Last technical review2026-08-13