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Linux Command-Line Trivia

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Which of the following commands in Linux® is used to display information about files and directories contained within the current working directory?

  • A. pwd
  • B. ls
  • C. grep
  • D. ps

Below are descriptions of yum commands. Which is incorrect?

  • A. "yum provides /var/www/html" displays the package that provides the "/var/www/html" directory.
  • B. "yum update httpd" downloads and installs an updated version of the httpd package including dependencies.
  • C. "yum install httpd" downloads and installs the httpd package and all its dependencies.
  • D. "yum find web" returns a list of packages with "web" in the name or summary page.

Which of the following statements is false?

  • A. The rpm command can list configuration files within a package.
  • B. Package file names contain this information: name, version, release, architecture.
  • C. Running the command "rpm -qa" will return a syntax error.
  • D. To display scripts that are associated with a "pkgname" package, run the "rpm -q --scripts pkgname" command.

Which of the following commands will display the IP address associated with the ens3 network interface?

  • A. ip -s link show ens3
  • B. ip -s addr ens3
  • C. ip addr show ens3
  • D. ip status ens3

Which of the following statements about SSH key-based authentication is false?

  • A. SSH key-based authentication uses a public-private key pair to authenticate.
  • B. The StrictHostChecking parameter aborts an SSH connection if the IP address of the remote host is not in the local network.
  • C. You create a public-private key pair using the command ssh-keygen.
  • D. SSH key-based authentication permits you to authenticate to a system without a password.

A Linux® command used for transferring files/directories to a different directory is:

  • A. replace
  • B. export
  • C. move
  • D. mv

A Linux® command displaying an absolute path to (i.e., the full filename of) the current working directory is:

  • A. mv
  • B. pwd
  • C. rm
  • D. dir

This command can be used to turn off or restart a Linux® host.

  • A. reboot
  • B. shutdown
  • C. exit
  • D. taskkill

A command in Linux® that allows to search files for lines containing a match to a given pattern is called:

  • A. rm
  • B. chmod
  • C. find
  • D. grep

Which of the following commands in Linux® is used to display information about files and directories contained within the current working directory?

  • A. pwd
  • B. ls
  • C. grep
  • D. ps


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