ostest1

Software is backward compatible if

• It still supports old file formats or applications

• People still use old versions

• It can be upgraded without downtime

• If the next version still works the same way

• It works across Linux/Mac/Windows

What is the command used to create a new file in Linux?

• touch

• makefile

• addfile

• newfile

What does the "info" command do in Linux?

• It displays the manual page for a command.

• It displays information about the hardware of your system.

• It displays detailed documentation for a command.

• It displays a list of available commands.

Source code refers to

• The interface that software uses to talk to the kernel

• The version of a program that the computer runs on the CPU

• A human readable version of computer software

• The license that dictates how you may use and share the software

What does the command "cat file. txt | grep pattern" do in Linux?

• It replaces the pattern in file. txt with new text

• It displays only the lines in file. txt that match the pattern

• It creates a new file called pattern. txt and copies the contents of file. txt to it

• It displays the contents of file. txt and searches for the pattern in the output

What is the main function of the kernel in an operating system?

• To run system backup and recovery procedures

• To manage user accounts and passwords

• To manage hardware resources and provide services to applications

• To provide a graphical user interface (GUI) for the user

Which command can be used to display the manual page for a specific command in Linux?

• info

• explain

• man

• help

Which distributions are made by, or clones of, Red Hat? (choose two)

• Fedora

• Debian

• Ubuntu

• Slackware

What is the effect of using the command "cd -" in Linux?

• It changes the current working directory to the directory specified by the absolute path '7-

• It changes the current working directory to the previous directory.

• It changes the current working directory to the home directory.

• It changes the current working directory to the root directory.

What is the command to change to a directory located in the home directory of another user?

• cd ~username

• cd …/username

• cd -username

• cd /home/username