Which command is used at the beginning of each terminal session to identify oneself to the system? This command is invoked by the system when a connection is first established, after the previous user has terminated the login shell by issuing the exit command.

Jane has stored files in a compressed tar archive. She extracts the data with the following command:
$ zcat keyfiles.tar.Z | tar tvf –
Examine the command line, what is the function of the zcat command?

Frank has an archive named data-1-4.tar and he needs to examine the content of the archive. Which command will display the contents of the archive for Frank?

Frank has issued the following command:
$ rcp -r ~/products eternium:/var/tmp/stor
Choose the answer that best describes the result of Frank’s command.

Wally is configuring a host named system1. He is attempting to allow user Frank to login from the host system2 without the need to enter a password. Which file will Wally need to configure to allow Frank to login to system1 without entering a password?

Jane has stored files in a compressed tar archive. She extracts the data with the following command:
$ zcat keyfiles.tar.Z | tar tvf –
Examine the command line. What is the purpose of the – option passed to the tar command?

You have a directory that contains only text files. You wish to compress all of these files. Which command can be used to compress these text files?

Val wants to backup her home directory to a tape device. Choose the command she might use to create the backup.

Dave has a compressed tar archive named pics.tar.Z Dave needs to uncompress and extract the data from this file. Which command will extract and uncompress the file?