You are administrator of Certpaper network.

You are administrator of Certpaper network. First time you are going to take the full backup of all user’s home directory. Take the full backup of /home on /tmp/back file.

Answer and Explanation:

1.dump -0u –f /tmp/back /dev/hda4

dump is the standard backup utility. According to the questions, fullback should take. –0 means fullback, -u means update the /etc/dumpdates which maintains the backup record and -f means filename. If you are directly taking backup into other device, you can specify the device name.

i.e dump -0u -f /dev/st0 /dev/hda4. Where hda4 is a separate partition mounted on /home.