IT601P Quiz 3

Q1. The command "ssh -F /dev/null username " has been successfully executed on Linux server. What are the results of the command?

1. ~./.ssh/sshd_conf will be bypassed
2. username will be logged in without password
3. Active SSH connections will be terminated
4. SSH service will fail

Correct answer: ~./.ssh/sshd_conf will be bypassed

Q2. Select the correct option which repersents the world-writeable permissions.

1. 0777
2. 0750
3. 0000
4. 0555

Correct answer: 0777

Q3. Which digit in 0755 permission repersents the ownership.

1. 2nd
2. There is no information about owner user
3. 1st
4. 3rd

Correct answer: 1st

Q4. An active user part of SSH group has been deleted with userdel command, What would happen with remote connection.

1. SSH connection will remain active
2. User connection will be put on hold
3. User will not be deleted
4. SSH connection will be terminated

Correct answer: SSH connection will remain active

Q5. Authorized keys are stored in _____________________________.

1. ~/.ssh
2. /etc/ssh
3. /etc/ssh/sshd_config
4. /usr/keys

Correct answer: ~/.ssh

Q6. The key used by a server for authenticating a client with password-less configuration of SSH is ______________.

1. Private Key of Client
2. Private Key of Client
3. Public Key of Client
4. Private Key of Server

Correct answer: Public Key of Client

Q7. Which of the given statements is correct?

1. sudo adduser root is used to create root user
2. By default root user exists on the system
3. sudo passwd -l root is used to create a root user
4. sudo passwd is used to create root user

Correct answer: By default root user exists on the system

Q8. Select a correct permission level which is more secure and does not have any effect on the owner and group members.

1. 0755
2. 0777
3. 0750
4. 0700

Correct answer: 0700

Q9. The correct syntax to establish a SSH connection to a remote server using NAT is ___________________.

1. ssh -p <REMOTE-PORT> <REMOTE-USERNAME> <LOCAL-IP>
2. ssh -p <REMOTE-PORT> <REMOTE-USERNAME> <REMOTE-SERVER-IP>
3. ssh <REMOTE-USERNAME> <REMOTE-SERVER-IP>
4. ssh -p <REMOTE-PORT> <LOCAL-USERNAME> <REMOTE-SERVER-IP>

Correct answer: ssh -p <REMOTE-PORT> <REMOTE-USERNAME> <REMOTE-SERVER-IP>

Q10. The command "sudo ls -l" is executed in _________________.

1. User mode
2. Root mode
3. Standard mode
4. Privileged mode

Correct answer: Privileged mode