Optimize Disks in Linux video

What does the df command display?

• Disk space usage and availability

• The amount of RAM used

• Network bandwidth usage

• CPU usage statistics

What option is used with the df command to make the output human-readable?

• -m

• -l

• -h

• -r

What does the du command do?

• It checks the disk for errors

• It updates the system

• It displays the amount of space used by files and directories

• It downloads updates for the system

Why might running the du command on the root directory as a regular user result in errors?

• Because it requires elevated privileges

• The root directory does not contain any files

• Regular users cannot use the du command

• It is only meant to be used by system administrators

What must be done before running the fsck command on a partition?

• The partition must be reformatted

• The partition must be unmounted

• The partition must be duplicated

• The partition must be encrypted

What does the -T option do when used with the df command?

• Tests the disk for errors

• Terminates the command immediately

• Traces the path of the command

• Displays the file system type

What is indicated by the file system reference /dev/vda5?

• It is a fifth-generation virtual device

• It represents a network storage device

• It is the fifth partition on the first virtual storage device

• It is the device name for the primary hard drive

What does the fsck command do?

• It fragments the file system

• It updates the file system to the latest version

• It checks the file system for errors

• It encrypts the file system for security