Final Comprehensive Exam (Modules 1 - 16)

Final Comprehensive Exam (Modules 1 - 16)





CORRECT - See section 1.3.3

Linux is written in:

• C

CORRECT - See section 1.3.3

Source code refers to:

• A human readable version of computer software

CORRECT - See section 5.3.7

The command man -k is the same as the command apropos.

• True

CORRECT - See section 5.3.6.3

The whatis command is the same as man -w.

• False

CORRECT - See section 6.3.5

Is the following path absolute or relative?

/etc/ppp

• Absolute

CORRECT - See section 6.3.5

Is the following path absolute or relative?

sysadmin/Documents

• Relative

CORRECT - See section 8.4.2

A successful command will print output to STDOUT.

• True

CORRECT - See section 8.4.5

Which of the following commands will direct error messages to the file, error.log?

• ls /root 2> error.log

CORRECT - See section 9.3

The echo command:

• Is used to output text to the console

CORRECT - See section 9.3

A file begins with #!/bin/csh. This means:

• Running the script will invoke /bin/csh to interpret the rest of the file

CORRECT - See section 9.4

Which are appropriate editors for writing shell scripts?

• nano
• vi

CORRECT - See section 9.4

Most of nanos commands take the form of:

• Control and another character

CORRECT - See section 9.5.2

What does this shell script do?

FOO=/tmp/foo
if [ ! d $FOO ]; then
    mkdir $FOO
fi

• Creates /tmp/foo if it does not exist

CORRECT - See section 10.3

Which of the following are valid CPU types for Intel-based platforms?

• 32 bit
• 64 bit

CORRECT - See section 10.3

64 bit platforms can access more memory than 32 bit platforms.

• True

CORRECT - See section 11.3.2

What does the acronym RPM mean?

• RPM Package Management

CORRECT - See section 11.3

One way to install new software on a Linux system is to use a package management system.

• True

CORRECT - See section 11.10

When you execute the dmesg command, the system displays messages that are generated by the kernel.

• True

CORRECT - See section 11.3.1

Which of the following are package management commands for distributions with software distributed in files ending in .deb?

• dpkg
• aptitude
• apt-get

CORRECT - See section 11.3.2

Which of the following are package management commands for distributions with software distributed in files ending in .rpm?

• rpm
• yum
• yumex

CORRECT - See section 12.3

Which of the following would be considered a host?

• A printer attached to the network via an IP address

CORRECT - See section 12.3

A service is...

• ...a feature provided by one computer to another.

CORRECT - See section 12.4

Only servers have hostnames.

• False

CORRECT - See section 13.3

Which files contain user account information?

• /etc/passwd
• /etc/shadow

CORRECT - See section 13.3.2

Which user can view the /etc/shadow file?

• The root user

CORRECT - See section 13.3.4

Which command will display the UID, GID and groups your current user belongs to?

• id

CORRECT - See section 13.8

Which command will display the users that are currently logged in to the system?

• who

CORRECT - See section 14.8.1

UIDs 1-500 are usually reserved for what kind of users?

• System accounts, such as server processes

CORRECT - See section 14.13

If a user is deleted, the files and directories that the user owned...

• ...will show a UID as the owner, but not user name.

CORRECT - See section 14.8.1

Which of the following options for the useradd command allows root to specify supplementary groups the user will be a member of?

• -G

CORRECT - See section 14.8.1

On a system that does not use UPG, the useradd command will also create a user group. For example, user bob, group bob.

• False

CORRECT - See section 15.7.2

Which of the following commands set "other" permissions on file to r-x?

• chmod o=rx file

CORRECT - See section 15.7.3

Which of the following commands sets "other" permissions on file to r-x?

• chmod 775 file

CORRECT - See section 15.7.2

Only one set (user, group, other) of permission can be changed at once using the symbolic method.

• False

CORRECT - See section 15.7.2

Which of the following are methods for setting permissions using the chmod command?

• octal
• symbolic

CORRECT - See section 15.6

The chown command can be used to change the owner and group of a file.

• True

CORRECT - See section 2.3.1

The Samba application is a:

• File Server

CORRECT - See section 2.3

Which of the following are examples of desktop software?

• Web browser
• Music player

CORRECT - See section 2.3.1

If you wanted to set up a blog, which software would be most helpful?

• WordPress

CORRECT - See section 2.3.1

Which of the following pieces of software deal with file sharing?

• Samba
• Netatalk
• NFS

CORRECT - See section 3.3

Which of the following is true about graphical mode?

• You access this mode by logging into a graphical display
• You have menus and tools to help you find what you are looking for
• After login, you are provided with a desktop

CORRECT - See section 3.3

A server is likely to be running in graphical mode.

• False

CORRECT - See section 3.4

In graphical mode, you can get to a shell by running which applications?

• terminal
• xterm

CORRECT - See section 3.5

Which of the following are traits of a multiuser operating system?

• Many users can log in simultaneously with a unique account
• Users can protect their information from other users
• Resources are shared between users

CORRECT - See section 4.7

Which environment variable contains a list of directories that is searched for commands to execute?

• PATH

CORRECT - See section 4.9

Select the command that can report the location of a command:

• which

CORRECT - See section 4.13.2

A pair of single quotes ( ' ) will prevent the shell from interpreting any metacharacter.

• True

CORRECT - See section 16.9

The /tmp directory is a temporary directory and will not exist on a system at all times.

• False

CORRECT - See section 16.7

The "sticky bit" permission...

• ...prevents others from removing files they don't own from a common directory.

CORRECT - See section 16.3

The "setuid" permission...

• ...allows a command to be run as the file owner.