Oracle Linux System Administration I Quiz Questions and Answers

What does rwxr-xr-- means in octal?

Answer :
  • 754

What is the ssh command?

Answer :
  • It is the secure shell; it is used to connect to remote hosts via an authenticated and encrypted channel.

What type of file does the /etc folder contain?

Answer :
  • Configuration files for services and systems

Which command(s) is/are used to get help about a command in Linux?

Answer :
  • Both a and b

What is the purpose of id command?

Answer :
  • Print effective and real UID and GID

What is the output of the following command? rpm –qa

Answer :
  • Queries the RPM database and lists all installed packages

What does the pwd command do?

Answer :
  • It prints the path of the current working directory

From where the normal user UID starts from?

Answer :
  • 1000

Which file contains information about secondary groups on the system?

Answer :
  • /etc/group

Which of the following command is used unmount a filesystem?

Answer :
  • umount