You are not permitted to speak while taking the exam.

Lex wants to run a series commands sequentially, but does not want to create a shell script. He knows that each command is going to take approximately 20 minutes to run individually. However, he would like to go to lunch 10 minutes from now. He knows that he can type all of the commands on the same line and separate them with a certain character to run them sequentially. Which character can he type after each command to have them run one after the next without requiring further input from him?

Which character is used to add a comment line in a script?

Which of the following commands will list the time zones available on a Linux system?

To append data into a file, which re-director should be used? 

What argument can be used with the chmod command to add read permission and remove write permission for a group on a file whose current permissions are rw–w-r–?

When using the chown command, which of the following options will change the ownership of files and directories recursively within a directory? (Choose all that apply.)

Which of the following commands shows block devices, including their major and minor numbers, on a system which are located in the /sys/block directory?

Which of the following commands will shut down a Linux system? (Choose all that apply.)

Javier wants to rename a directory for a project that he has been working on. Which command will perform that action?