Linux Essentials Quiz

Which command is used to list the contents of a directory in Linux?

• `ls`

• `dir`

• `list`

• `show`

What is the command to change the ownership of a file in Linux?

• `chown`

• `chmod`

• `ownmod`

• `modown`

Which of the following commands is used to display the current IP configuration?

• `ifconfig`

• `ipconfig`

• `netstat`

• `ip show`

In Linux, what is the default permissions set for a new file using the `umask` value 022?

• `755`

• `644`

• `766`

• `777`

Which command is used to change the permissions of a file in Linux?

• `chown`

• `chmod`

• `perm`

• `setperm`

How can you add a user to a group in Linux?

• `usermod -aG groupname username`

• `groupadd -u username groupname`

• `adduser username groupname`

• `groupmod -a username groupname`

What is the purpose of the `/etc/passwd` file in Linux?

• Store passwords

• User account information

• Network configuration

• System logs

Which command is used to display the routing table in Linux?

• `route`

• `netstat -r`

• `ip route`

• `All of the above`

What does the `chmod 777` command do to a file or directory?

• Makes it readable only

• Makes it executable only

• Gives full permissions to everyone

• Locks the file from being accessed

Which file system type is commonly used in Linux installations?

• NTFS

• FAT32

• ext4

• HFS+