Linux Questions

CORRECT - See section 1.3.1
One of the jobs of the kernel is to:
Manage the systems resources

CORRECT - See section 1.3.3
Linux is written in:
C

CORRECT - See section 1.3.5
The Linux platform that runs on mobile phones is called:
Android

CORRECT - See section 1.3.4
What does a distribution provide to add and remove software from the system?
Package manager

CORRECT - See section 1.3.1
The bootloaders job is to:
Load the kernel after the computer is powered on

CORRECT - See section 1.3.4
Ubuntu is derived from which distribution?
Debian

CORRECT - See section 1.4
The most important consideration when choosing an operating system is:
What the computer will do

CORRECT - See section 1.4.1
Software is backward compatible if:
It still supports old file formats or applications

WRONG - See section 1.4.5
Other commercial Unixes:
Are UNIX certified

CORRECT - See section 1.4.1
When choosing a distribution of Linux, you should consider:
Which distributions are supported by the software you need to run
If you need support on the distribution itself
The maintenance cycle of the distribution
Whether or not the distribution is under active development
Which management tools are provided by the distribution

CORRECT - See section 2.3.2
If you wanted to create and print an invoice, what could you use?
LibreOffice

CORRECT - See section 2.3.2
Which application would you use to edit and piece together sound files to make podcast?
Audacity

CORRECT - See section 2.3.3
The two main families of Linux shells are:
Bourne Shell
C Shell

CORRECT - See section 2.3.1
Which server software would you use to create a company directory that you could search and authenticate against?
OpenLDAP

CORRECT - See section 2.3.1
If you wanted to let a Linux machine share files with Windows clients and servers, you would use:
Samba

WRONG - See section 2.4.3
Creative Commons licenses allow you to:
Specify whether or not changes must be shared
Allow or disallow commercial use
Get a veto on where the work is used

CORRECT - See section 2.4.3
If a podcast is licensed under the CC BY-ND license, you may:
Share it as long as you give credit to the author
Post it to your website

CORRECT - See section 2.4.4
How can you make money from open source software?
Provide paid consulting services for users
Take payments for fixing bugs
Sell hardware thats built to work with the software

CORRECT - See section 2.4.1
To place software under an open source license, you must give up your copyright.
False

CORRECT - See section 2.4.1
The difference between the GPL and LGPL licenses are:
LGPL allows linking to non GPLed softwareCORRECT - 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
Virtualization means:
A single host can be split up into multiple guests

CORRECT - See section 3.6
If you wanted to write a report that was to be printed, you would probably use:
LibreOffice

CORRECT - See section 3.7
If you want to store logins and passwords for different websites in a secure manner, you could use:
KeePassX

CORRECT - See section 3.7
You can configure your computer to check for updates automatically.
True

CORRECT - See section 3.8
Which of the following is a tool that helps you anonymize your Internet browsing?
The onion router

CORRECT - See section 3.7
Which of the following are properties of a strong password?
At least 10 characters long
A mix of upper and lower case
Includes symbols

CORRECT - See section 3.7
What can be done to prevent remote people from running programs on your computer?
Turn on a firewall
use strong passwords on all user accounts

CORRECT - See section 4.4
Select all the applications that provide access to the Command Line Interface (CLI)?
Terminal window
Virtual Terminal

CORRECT - See section 4.7
Which environment variable contains a list of directories that is searched for commands to execute?
PATH

CORRECT - See section 4.11.2
A pair of single quotes ( ' ) will prevent the shell from interpreting any metacharacter.
True

CORRECT - See section 4.10
Which of the following are glob characters?
The asterisk "*"
The question mark "?"
The square brackets "[" and "]"

CORRECT - See section 4.12.1
The semicolon ";" can be used to separate multiple commands to be executed in order.
True

CORRECT - See section 4.6
To be able to output messages to the screen use the _______ command:
echo

CORRECT - See section 4.5
The _______ command will print a list of the commands that you've previously executed.
history

CORRECT - See section 4.4.2
The shell program is what interprets the commands you type into the terminal into instructions that the Linux Operating System can execute.
True

WRONG - See section 4.4.4
Traditional UNIX command options used a single dash, like -a; _______ command options use two dashes like --all.
LINUX

CORRECT - See section 4.10
The main purpose of using glob characters is to be able to provide a command a list of filenames.
True

CORRECT - See section 5.5.1
What is the standard option to provide a command line program to view its documentation?
--help

CORRECT - See section 5.3.6.3
The whatis command is the same as man -w.
False

CORRECT - See section 5.3.6
Commands typically executed by a user are covered in what section of the manual?
1

CORRECT - See section 5.3.7
To search the man page sections for the keyword example, which of the following command lines could you execute?
man -k example
apropos example

CORRECT - See section 5.3.3
The following sections commonly appear on a man page:
NAME
DESCRIPTION
SYNOPSIS

CORRECT - See section 5.3.2
What key should be used while working in the man command if you want to go to the end of the document?
G

CORRECT - See section 5.4.2
To get help while using the info command press:
h

CORRECT - See section 5.4.2
To exit the info command press:
q

CORRECT - See section 5.4.2
To go to the end of an info page press:
END

CORRECT - See section 5.3.5
To go to the next match of a search on a man page press:
n

CORRECT - See section 6.4.2
Hidden files are files that begin with what character?
A period (.)

CORRECT - See section 6.4.2
What option for the ls command will display all files, including hidden files?
-a

CORRECT - See section 6.3
The top-level directory on a Linux system is represented as:
/

CORRECT - See section 6.3.5
Is the following path absolute or relative?
sysadmin/Documents
relative

CORRECT - See section 6.3.2
Which of the following commands can be used to access the home directory of the user "bob" while logged in as root?
cd /home/bob
cd ~bob

CORRECT - See section 6.3.5
The double dot (..) can be used to represent the directory...
...above the current directory

CORRECT - See section 6.4.3.1
Which option for the ls command, when used in conjunction with the -l option, will display human-readable sizes?
-h

CORRECT - See section 6.4.1
Which of the following commands will prevent any aliased options to the ls command?
\ls

CORRECT - See section 6.4.5
The command ls -S will sort files:
By size, largest to smallest.

CORRECT - See section 6.10
The command rm -r will...
remove a directory along with any files or subdirectories.

CORRECT - See section 7.1
Compression on a file works by:
Removing redundant information

CORRECT - See section 7.3
In general, which of the following would you want to use lossless compression?
A log file

CORRECT - See section 7.3
Lossy compression:
Usually results better compression than lossless
Is often used with images
Sacrifices some quality

CORRECT - See section 7.3
How would you obtain output similar to the following?
compressed    uncompressed    ratio        uncompressed_name
278168          1016950           72.6%      tags
gzip l tags

CORRECT - See section 7.4
In the command tar cvjf foo.tbz a b c, what are a, b, and c?
file names to be added to the archive

CORRECT - See section 7.5
Which of the following commands will create a zipfile with the contents of your Documents directory?
zip -r mydocs.zip Documents

CORRECT - See section 7.3
You try to compress a file that is already compressed. Which of the following statements is true?
The file will not be compressed any further than it already was

WRONG - See section 7.3
Which of the following commands can be used to compress a file?
gzip
zip
bzip

CORRECT - See section 7.4
The three main modes of tar are:
Create
Extract
List

CORRECT - See section 7.4
Which two commands do the same thing?
tar c foo | gzip > foo.tar.gz
tar czf foo.tar.gz foo

CORRECT - See section 8.4.5
Channel 2 is:
STDERR

CORRECT - See section 8.7
Which option of the head command will display only the first five lines of a file?
-n 5

CORRECT - See section 8.11
The grep command...
...will display all the lines in a file containing the specified Regular Expression.

CORRECT - See section 8.13
Which of the following commands will display only lines that begin with test?
grep ^test file.txt

CORRECT - See section 8.13
Which of the following commands will display lines that contain either start or end?
egrep 'start|end' file.txt

CORRECT - See section 8.6
Which of the following commands can be used to scroll through a text file?
more
less

CORRECT - See section 8.5
Which of the following commands scans the file to determine file locations?
find

CORRECT - See section 8.9
Which option for the wc command will print the number of lines in a file?
-l

CORRECT - See section 8.4.4
The command echo "text" > file.txt will create file.txt if it does not already exist.
True

CORRECT - See section 8.4.4
The command echo "text" >> file.txt will not overwrite file.txt if it already exists.
True

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 9.5.2
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 9.5.3
Which of the following are correct about for and while loops?
for loops operate over a fixed list of items
while loops have a test each cycle to determine if it should run again

CORRECT - See section 9.5.1
Given the following script that is run through ./test.sh hello goodbye:
if [ -f $2 ]; then
echo "I am here"
fi
When will I am here be printed?
If a file called "goodbye" exists in the current directory

CORRECT - See section 9.5.2
The if command looks for what exit code to consider a condition to be true?
0

CORRECT - See section 9.5.2
Given the following script:
while [ ! f /tmp/foo ]; do
echo n .
process_data > /tmp/foo
done
Which of the following are true?
If a file called /tmp/foo exists, process_data wont be run
process_data will be called at most once

CORRECT - See section 9.5.2
A conditional that lets you make multiple comparisons with a pattern is called:
case

CORRECT - See section 9.5.3
What is the meaning of $(( $i + 1)) ?
1 will be added to the i variable

CORRECT - See section 9.5.2
How would you write a test that says if /tmp/foo is a directory or USERS is greater than 5?
test -d /tmp/foo -o $USERS -gt 5

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 10.3
A CPU flag...
...defines the features that the CPU supports

CORRECT - See section 10.4
Which command displays information from SMBIOS?
dmidecode

CORRECT - See section 10.4.2
Choose all of the following statements that are true in regard to virtual RAM:
Virtual RAM is used when available physical RAM is low.
Virtual RAM is also called swap space
Virtual RAM is stored on a hard drive

CORRECT - See section 10.4.3
Which of the following are common busing systems?
USB
PCI

CORRECT - See section 10.6
A division of a hard drive may be referred to as a _______ . (Choose 2)
partition
slice

CORRECT - See section 10.6
Which of the following are valid partitioning types?
MBR
GPT

CORRECT - See section 10.6
Which of the following is the valid device file name for the first IDE hard drive on the system?
/dev/hda

CORRECT - See section 10.7
Which of the following are valid video cable connector types?
VGA
DVI

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 11.4
The /proc directory contains a subdirectory for each process present on the system.
True

CORRECT - See section 11.4
The Process ID (PID) of the init process is
1

CORRECT - See section 11.8
The free command outputs statistics about:
Memory usage

CORRECT - See section 11.7
A command that will continuously update statistics about running processes:
top

CORRECT - See section 11.6
The following are valid Linux option styles:
Traditional Unix with a single dash (-)
BSD Unix without a dash
GNU long options with two dashes (--)

CORRECT - See section 11.4
To make changes permanent for kernel parameter files found under /proc/sys, the following file can have entries added to it:
/etc/sysctl.conf

CORRECT - See section 11.3.2.4
To get a list of all packages installed on a system using RPM Package Management you can execute:
rpm -qa

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 12.5
A network packet contains ...
...the IP address of the destination machine
...the IP address of the source machine

CORRECT - See section 12.5
Which of the following are valid IPv4 addresses?
192.105.10.10
10.33.55.77

CORRECT - See section 12.7.1
The name of the primary wired network devices is ether0.
False

CORRECT - See section 12.7.1
Which of the following commands will display your machine's IP address?
ifconfig

CORRECT - See section 12.7.2
Which of the following commands will display the routing table?
route
netstat -r

CORRECT - See section 12.7.6
Which of the following commands will allow you to log into a remote machine?
ssh

CORRECT - See section 12.7.4
What option to the netstat command has information shown as numbers rather than names?
-n

CORRECT - See section 12.7.6
Which of the following commands will allow you to log into the machine server1 with the account name nick?
ssh nick@server1

CORRECT - See section 12.7.6.1
The RSA key fingerprint allows the dig command to connect to remote systems.
False

CORRECT - See section 13.3
Which files contain user account information?
/etc/passwd
/etc/shadow

CORRECT - See section 13.1
Each user is a member of their own private group, of which they are the only member.
True

CORRECT - See section 13.8
Which command will display the users that are currently logged in to the system?
who

CORRECT - See section 13.7.1
The sudo command allows regular users to...
...run certain commands as the root user.

CORRECT - See section 13.7.1
The /etc/sudoers file should be edited directly by root using the visudo command.
True

CORRECT - See section 13.4.1
A GID is associated with a group name.
True

CORRECT - See section 13.4
A user can belong to...
At least 16 groups

CORRECT - See section 13.7.1
Sudo privileges can be used to specify which user can use the sudo command to execute commands as other users.
True

CORRECT - See section 13.9
Which of the following commands will display how long the system has been running since the last boot?
w
uptime

CORRECT - See section 13.3.3
Which command can be used to view the /etc/passwd file entries?
getent

CORRECT - See section 14.8.1
Which of the following options for the useradd command allows root to specify the UID to be associated with the account?
-u

CORRECT - See section 14.8.1
The useradd command will create a home directory by default for a user.
True

CORRECT - See section 14.12.1
The usermod command can be used to do all of the following except...
...change the user's MAX and MIN password settings

CORRECT - See section 14.12.1
Which of the following commands will add the group "extra" to the user bob's secondary groups in addition to bob's current secondary groups?
usermod -aG extra bob

CORRECT - See section 14.10
For non-root users, the passwd command can only be used to change the password of the user running the command.
True

CORRECT - See section 14.13
The userdel command will...
delete the user account, but leave the user's files by default

CORRECT - See section 14.4
The groupmod command can be used to change a group name.
True

CORRECT - See section 14.7
Which of the following files contains encrypted user password information?
/etc/shadow

CORRECT - See section 14.3
Which of the following files does the groupadd command use to determine the new GUI when a GUI isn't specified?
/etc/group

CORRECT - See section 19.4
What directory contains user's home directories?
/home

CORRECT
Which of the following commands sets "other" permissions on "file" to r-x?
chmod 775 file

CORRECT
The chgrp command can be used to change the owner and group of a file. True or False?
False

CORRECT
The user "sysadmin" will be able to read the "file" because they own it.
----r--r--  1  sysadmin  group  38270  Sep 2 18:49  file
True or False?
False

CORRECT
The "execute" permission on a directory allows you to: (choose three)
Change to that directory or use it as part of a path
Along with read permission to successfully perform "ls -l"
Along with write permission to successfully create new files

CORRECT
The "execute" permission on a file allows you to:
Run the file as a script

CORRECT
The chgrp command can be used on a file by:
The file owner and root

CORRECT
The chmod command can be used on a file by:
The file owner and root

CORRECT
The "execute" permission is never set on files by default. True or False?
True

CORRECT
The user owner of a file will always have the same or higher permissions as "other". True or False?
False

CORRECT - See section 15.2
The chgrp command can be used to change the owner and group of a file.
False

CORRECT - See section 15.7.2
The user "sysadmin" will be able to change the permissions of the "file" because they own it.
----r--r--  1  sysadmin  group  38270  Sep 2 18:49  file
TRUE

CORRECT - See section 15.7
Which of the following permissions would allow all users to add, view, and delete files in a directory?
777

CORRECT - See section 15.7
A user cannot delete a file if they do not own it.
False

CORRECT - See section 15.5
The chgrp command can be used on a file by:
The file owner and root

CORRECT - See section 15.6
The chown command can be used to change the user owner on a file by:
Only root

CORRECT - See section 15.6
The chmod command can be used on a file by:
The file owner and root

CORRECT - See section 15.6
Which option for the chown command can be used to change the owner of a directory and all the files and directories below it?
-R

CORRECT - See section 15.6
The chown command will only accept one file at a time as an argument.
False

CORRECT - See section 15.9
The "execute" permission is never set on files by default.
True

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
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 15.7
The user "sysadmin" will be able to read the "file" because they own it.
----r--r--  1  sysadmin  group  38270  Sep 2 18:49  file
False

CORRECT - See section 15.7
Which of the following permissions would allow all users to add, view, and delete files in a directory?
777

CORRECT - See section 15.7
A user cannot delete a file if they do not own it.
False

CORRECT - See section 15.7
The "execute" permission on a file allows you to:
Run the file as a script

CORRECT - See section 15.5
The chgrp command can be used on a file by:
The file owner and root

CORRECT - See section 15.6
The chown command will only accept one file at a time as an argument.
False

CORRECT - See section 15.9
The "execute" permission is never set on files by default.
TrueCORRECT - See section 5.4.2
To go to the end of an info page press:
END


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 16.9
The /var directory has files that change over time.
True

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 16.4
The setgid permission...
allows a command to be run as the group owner of the file.
allows files created in a directory to be owned by the group that owns the directory

CORRECT - See section 16.6
Which of the following commands will set setgid on /shared ?
chmod 2777 /shared

CORRECT - See section 16.8.3
Deleting a source file will break an associated hard link.
False

CORRECT - See section 16.8.3
A source and a hard link must be part of the same filesystem.
True

CORRECT - See section 16.8.3
Deleting a source file will break an associated symbolic link.
True

CORRECT - See section 16.8.3
A source file and a symbolic link must be part of the same file system.
False

CORRECT - See section 16.8.2
Which of the following commands would create a symbolic link, "link" to "file"?
ln -s file link

CORRECT - See section 16.3
Which of the following commands will set setuid for /usr/bin/program?
chmod 4755 /usr/bin/program

CORRECT - See section 16.5
Setting setgid on a directory...
will set the group owner of all files created in the directory to the group owner of the directory

CORRECT - See section 5.3.5
To go to the next match of a search on a man page press:
n

CORRECT - See section 5.3.4
When interpreting the SYNOPSIS of a command found on a man page, the "|" means:
The items it separates cannot be used together

CORRECT - See section 5.3.5
After performing a search, you can use the ____ key to return to a previously found match:
N

CORRECT - See section 5.3.2
To move a page forward one at a time while viewing a man page, press the following:
Spacebar

CORRECT - See section 6.4
The ls command without options or arguments...
...lists the contents of the current directory.

CORRECT - See section 6.9
Which option can be used with the rm command to prompt before deleting?
-i

CORRECT - See section 6.9
The rm command can delete multiple files at once.
True

CORRECT - See section 6.7.1
Which of the following commands can be used to rename a file?
mv

CORRECT - See section 6.8
The touch command can be used to:
create new files
update the time stamp of existing files

WRONG - See section 7.3
You try to compress a file that is already compressed. Which of the following statements is true?
The file changed while you were compressing it

CORRECT - See section 7.3
Which of the following commands can be used to compress a file?
gzip
bunzip2
zip

CORRECT - See section 7.4
The three main modes of tar are:
Create
Extract
List

WRONG - See section 7.4
In the command tar czf foo.tar.gz bar, what is the purpose of the f flag?
Tells tar to read from the file that follows the flag

CORRECT - See section 7.4
Which two commands do the same thing?
tar c foo | gzip > foo.tar.gz
tar czf foo.tar.gz foo

CORRECT - See section 8.9
Which option for the wc command will print the total number of words in a file?
-w

CORRECT - See section 8.3
Which command can be used to print line numbers?
nl

WRONG - See section 8.4.4
The command echo "text" > file.txt will create file.txt if it does not already exist.
False

CORRECT - See section 8.4.4
The command echo "text" > file.txt will not overwrite file.txt if it already exists.
False

CORRECT - See section 8.4.4
The command echo "text" >> file.txt will not overwrite file.txt if it already exists.
True

CORRECT - See section 1.4.1
Software is backward compatible if:
It still supports old file formats or applications

CORRECT - See section 1.4.3
Apples OS X is:
Certified as UNIX compatible
Derived from FreeBSD
Only compatible with Apple hardware

WRONG - See section 1.4.2
Microsoft Windows:
Has powerful scripting capabilities
Comes in desktop and server variants
Has a short maintenance cycle

WRONG - See section 1.4.5
Other commercial Unixes:
Use completely different commands than Linux

CORRECT - See section 1.4.1
When choosing a distribution of Linux, you should consider:
Which distributions are supported by the software you need to run
If you need support on the distribution itself
The maintenance cycle of the distribution
Whether or not the distribution is under active development
Which management tools are provided by the distribution

CORRECT - See section 2.4.1
The difference between the GPL and LGPL licenses are:
LGPL allows linking to non GPLed software

CORRECT - See section 2.4.1
Permissive free software licenses:
Dont have a copyleft provision
Are not approved by the FSF
Can allow software to be used inside closed source software

CORRECT - See section 2.4.3
The Creative Commons version of Public Domain licensing is:
No Rights Reserved

CORRECT - See section 2.4.1
Your company makes a hardware firewall that runs a custom Linux kernel. What are your obligations under GPLv2?
You must make the source to your kernel available

CORRECT - See section 2.4.4
Participating in open source projects can improve your technical skills, even if it is not your day job.
True

CORRECT - See section 3.8
What are tradeoffs of increasing the level of privacy you have in your web browser?
Sites may not work properly
You may have to explicitly permit some cookies to be saved

CORRECT - See section 3.8
Which of the following is a tool that helps you anonymize your Internet browsing?
The onion router

CORRECT - See section 3.8
Social network like buttons can track your activity across the Internet.
True

CORRECT - See section 3.7
Which of the following are properties of a strong password?
At least 10 characters long
A mix of upper and lower case
Includes symbols

CORRECT - See section 3.7
What can be done to prevent remote people from running programs on your computer?
Turn on a firewall
use strong passwords on all user accounts

CORRECT - See section 4.3
The acronym CLI stands for:
Command Line Interface

WRONG - See section 4.4.4
Traditional UNIX command options used a single dash, like -a; _______ command options use two dashes like --all.
LINUX

CORRECT - See section 4.4.4
The acronym GNU stands for:
Gnu's Not Unix

CORRECT - See section 4.11.3
What one character treats the character that follows it as if it was surrounded by single quotes?
\

CORRECT - See section 4.10
The main purpose of using glob characters is to be able to provide a command a list of filenames.
True

CORRECT - See section 9.5.2
The number of users logged in is in a variable called USERS. How would you test to see if 5 users are logged in?
test $USERS eq 5

CORRECT - See section 9.5.2
Given the following script:
while [ ! f /tmp/foo ]; do
echo n .
process_data > /tmp/foo
done
Which of the following are true?
If a file called /tmp/foo exists, process_data wont be run
process_data will be called at most once

CORRECT - See section 9.5.2
A conditional that lets you make multiple comparisons with a pattern is called:
case

CORRECT - See section 9.5.3
What is the meaning of $(( $i + 1)) ?
1 will be added to the i variable

CORRECT - See section 9.5.2
How would you write a test that says if /tmp/foo is a directory or USERS is greater than 5?
test d /tmp/foo o $USERS gt 5

CORRECT - See section 10.6
A division of a hard drive may be referred to as a _______ . (Choose 2)
partition
slice

CORRECT - See section 10.6
Which of the following are valid partitioning types?
MBR
GPT

CORRECT - See section 10.6
The fdisk command is a tool used for working with the MBR partitioned disks.
True

CORRECT - See section 10.6
Which of the following is the valid device file name for the first IDE hard drive on the system?
/dev/hda

CORRECT - See section 10.7
Which of the following are valid video cable connector types?
VGA
DVI

CORRECT - See section 11.7
A command that will continuously update statistics about running processes:
top

CORRECT - See section 11.6
The following are valid Linux option styles:
Traditional Unix with a single dash (-)
BSD Unix without a dash
GNU long options with two dashes (--)

CORRECT - See section 11.4
Which file contains the information passed to the kernel at boot time?
/proc/cmdline

CORRECT - See section 11.4
To make changes permanent for kernel parameter files found under /proc/sys, the following file can have entries added to it:
/etc/sysctl.conf

CORRECT - See section 11.3.2.4
To get a list of all packages installed on a system using RPM Package Management you can execute:
rpm -qa

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 12.7.4
What option to the netstat command has information shown as numbers rather than names?
-n

CORRECT - See section 12.7.6
Which of the following commands will allow you to log into the machine server1 with the account name nick?
ssh nick@server1

CORRECT - See section 12.7.6.1
The RSA key fingerprint allows the dig command to connect to remote systems.
False

CORRECT - See section 13.3
Which files contain user account information?
/etc/passwd
/etc/shadow

CORRECT - See section 13.7.1
Sudo privileges can be used to specify which user can use the sudo command to execute commands as other users.
True

CORRECT - See section 13.7.1
In distributions that do not allow the root user to login directly or via the su command, the installation process automatically configures one user account to be able to use the sudo command to execute commands as if they were executed by the root user.
True

CORRECT - See section 13.9
Which of the following commands will display how long the system has been running since the last boot?
w
uptime

CORRECT - See section 13.3.2
The /etc/shadow file contains plain-text passwords.
False

CORRECT - See section 13.3.3
Which command can be used to view the /etc/passwd file entries?
getent

CORRECT - See section 14.12
Which command can be used to determine a user's most recent log in?
last

CORRECT - See section 14.7
Which of the following files contains encrypted user password information?
/etc/shadow

CORRECT - See section 14.8.2
Which of the following files contains user IDs?
/etc/passwd

CORRECT - See section 14.3
Which of the following files does the groupadd command use to determine the new GUI when a GUI isn't specified?
/etc/group

CORRECT - See section 14.12.1
Which of the following commands, run as root, will prevent the user "bob" from logging in?
usermod -L bob

CORRECT - See section 15.6
The chmod command can be used on a file by:
The file owner and root

CORRECT - See section 15.6
Which option for the chown command can be used to change the owner of a directory and all the files and directories below it?
-R

CORRECT - See section 15.7
The user owner of a file will always have the same or higher permissions as "other".
False

CORRECT - See section 16.8.3
A source and a hard link must be part of the same filesystem.
True

CORRECT - See section 16.8.3
Deleting a source file will break an associated symbolic link.
True

CORRECT - See section 16.8.3
A source file and a symbolic link must be part of the same file system.
False

CORRECT - See section 16.8.1
Which of the following commands would create a hard link, "link" to "file"?
ln file link

CORRECT - See section 16.8.2
Which of the following commands would create a symbolic link, "link" to "file"?
ln -s file link

CORRECT - See section 1.3
Unix is:
An operating system
A trademark

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 5.5.2
The directory where additional documentation for software packages most likely can be found is:
/usr/share/doc

CORRECT - See section 6.4.2
What option for the ls command will display all files, including hidden files?
-a

CORRECT - See section 6.3
The top-level directory on a Linux system is represented as:
/

CORRECT - See section 7.1
Compression on a file works by:
Removing redundant information

CORRECT - See section 7.3
In general, for which of the following would you want to use lossless compression?
A log file

CORRECT - See section 8.4.3
Error messages generated by commands are sent where by default?
STDERR

CORRECT - See section 8.4.2
A successful command will print output to STDOUT.
True

CORRECT - See section 8.4.5
Channel 2 is:
STDERR

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 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 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 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 13.1
Each user belongs to at least one group.
True

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 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
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 2.3.2
If you wanted to create and print an invoice, which software could you use?
LibreOffice

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
Which of the following is provided by a graphical interface that isnt normally provided to a non graphical interface?
Menus
Windows
Popups
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 4.8
Select the command that can report the location of a command:
which

CORRECT - See section 4.11.2
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 16.9
The /var directory has files that change over time.
True

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 16.7
Which of the following commands will set the "sticky bit" on /shared ?
chmod 1777 /shared