IT601P Quiz 1

Q1. "/dev/null" is an example of ___________ in linux system.

1. User-defined-device
2. Default-device
3. Physical-device
4. Pseudo-device

Correct answer: Pseudo-device

Q2. The simplest way to delete an empty directory is _________.

1. del <DirectoryPath>
2. rmdir <DirectoryPath>
3. rmdir -r <DirectoryPath>
4. rm <DirectoryPath>

Correct answer: rmdir <DirectoryPath>

Q3. To delete a non-empty directory following command can be used.

1. rmdir <DirectoryName>
2. rmdir -r <DirectoryName>
3. rm <DirectoryName>
4. rm -r <DirectoryName>

Correct answer: rm -r <DirectoryName>

Q4. 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

Q5. A system administrator has found that a Ubuntu server has /selinux in its root path, What could be the reasons of the existence of above directory?

1. OS may have security risk
2. It exists because of the first boot after the installation
3. It is normal to have this directory
4. Root path may have been corrupted

Correct answer: It exists because of the first boot after the installation

Q6. With SSH, files _______________________.

1. Can be exchanged with additional tool
2. Can be exchanged
3. Cannot be exchanged
4. Can be exchanged with TFTP

Correct answer: Can be exchanged with additional tool

Q7. Authorized keys are stored in _____________________________.

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

Correct answer: ~/.ssh

Q8. The following command will ________. mkdir ~/d1 d2 d3

1. Create a directory d1 in home directory and directories d2 and d3 in current working directory
2. Create directories d1, d2 and d3 in the home directory
3. Create directories d1, d2 and d3 in current working directory
4. Fail to execute

Correct answer: Create a directory d1 in home directory and directories d2 and d3 in current working directory