456 quiz questions
select the regular expression metacharacter that matches 0 or more occurrences of the previous character
*
The mkfs command can be issued with what switch in order to specify a filesystem type?
-t
The filesystem hierarchy standard specifies what directory as containing the linux kernel and the boot leader configuration files?
/boot
Which device below represents the first primary partition on the second PATA hard disk drive?
/dev/hdb1
What character device file represents the second serial port on a system(COM2)?
/dev/ttyS1
What two files below are the first two BASH environment files to be executed and controlled by the sysadmin (root user)?
/etc/bashrc /etc/profile
What environment file is always executed immediately after login for all users on the system, and sets most environment variables such as HOME and PATH?
/etc/profile
The filesystem hierarchy standard specifies what directory as the root user's home directory?
/root
Under the root directory in Linux, which directory contains system commands and utilities
/usr
What directory under / contains the log files and spools for a Linux system
/var
What number represents the stdout file descriptor?
1
Dennis Ritchie invented what programming language, which was then used to write the UNIX operating system?
C
It is acceptable to use shell metacharacters when naming files
F
The rmdir command automatically removes a directory and all of its subdirectories and files
F
In linux, you are restricted to using only one type of filesystem on a system
False
When a user interacts with his computer, he interacts directly with the kernel of the computer's operating system
False
You are limited to using one pipe | metacharacter on the command line to pipe information from one command to another command
False
the GNU general public license was developed by which organization?
Free Software foundation(FSF)
What software type is software that is distributed free of charge but the source code is not available
Freeware
What linux distribution is the most commonly used distribution within organizations today?
Red Hat
What two special permissions can be applied in order to effectively allow a user to become owner of a file, or become a member of a group, by executing a file?
SGID, suid
What two BASH environment variables represent the current working directory, and the absolute pathname of the current shell, respectively?
SHELL PWD
Linux uses a logical directory tree to organize files into different folders
T
The SGID allows regular users to execute a binary compiled program and become a member of the group that is attached to the file
T
The database for the locate command can be updated manually by using the updateb command
T
The more command should not be used on binary files
T
you can use wildcard metacharacters with the find command
T
If enough unique letters of a directory name have bene typed, what key can be pressed to activate the BASH shell's completion feature?
Tab
In Linux, the core component of the GUI is known as
X Windows
Select the test statement that can be used to determine if A is numerically greater than B
[ A -gt B]
Using wildcard metacharacters, how can one indicate a number of either 1,2,3, or 4?
[1-4]
What two regular expression characters can be used to match the characters at the beginning or end of a line, respectively?
^ $
which type of open source license ensures that the source code of a program is freely available while also allowing the original author of the source code some control over the changes made to it?
artistic
The ability to extract, manipulate, and format text using pattern action statements belongs to which command below?
awk
A calendar for the current month can be shown on the command line by using which command?
cal
To display the contents of a text file called data, what command should be used
cat data
When using command line terminal, specific letters that start with a dash and appear after command names are considered to be:
options
What two commands below can be used to edit a GPT based hard disk's partitions?
parted gdisk
What command below can be used to create a new physical volume?
pvcreate
What command can be used to confirm what directory you are in at a command line prompt
pwd
If a file's permissions are set to 760, what permission(s) are available to the group assigned to the file
read write
What permissions are required to execute a shell script in a manner similar to any other executable program on the system?
read and execute
What command below takes a list of arguments specifying the absolute or relative pathnames of files to remove?
rm
The environment variables that are set by default and their current values can be viewed with what command?
set
After logging into a terminal a user will receive an interface known as which option below?
shell
What section of a filesystem contains information about the filesystem in general?
superblock
In the event you wish to disable a swap partition, what command must be used
swapoff
Select the two commands below that can be used to prepare a swap partition and then enable it for use:
swapon mkswap
To display a text file in reverse order, what command should be used?
tac
What command can be used to display the last five lines of a text file
tail -5
The section of an inode that stores permission is referred to as what?
the mode of the file
Data is read from physical hard drives in concentric circles known as which of the following?
tracks
You can modify the PS1 variable to customize the shell prompt layout
true
In Fedora, what terminal is used for graphical login?
tty1
What is the minimum number of user accounts that must be created at install time?
two
What file system below is used by software programs that write to a CD-RW or DVD-RW drive?
udf
Select the commands that can be used to extend a volume group and logical volume respectively:
vgextend, lvextend
Which linux command can be utilized to display you current login name?
whoami
which character(s) below represent extended regular expression metacharacter(s)?
{}
Select the metacharacter that can be used to send the standard output of one command to another command as standard input:
|
In a file's mode, a permission that unavailable is represented by what character?
~
what metacharacter can be used to refer to the current user's home directory?
~
What are two local environment files that you can modify for use with aliases, functions, exporting of user defined variables?:
~/.bash_profile ~/.bashrc
in order to move from the /home/joe/test/data to the home/joe directory what command below should be used?
cd ../..
A device that transfers data in a character-by-character fashion is referred to as what type of device?
character
In what mode does the vi editor open by default
command mode
What command can be used to copy files?
cp
In order to switch between terminals in Linux, a user can press what two keys in combination with the F1-F6 keys
ctrl, alt
In vi, using command mode, what series of key presses below will cause the line on which the cursor is to be deleted?
dd
What piece of software tells the operating system how to use a specific hardware device
device driver
what command below provides the easiest method for monitoring free space on mounted filesystems?
df
Select the command below that shows the size of a directory and its contents in kilobytes
du
The default BASH shell prompt is set by an environment variable. What command can be used to view this variable?
echo $PS1
Th quotas for certain users can be edited by using which command
edquota
In an if construct, what statements are optional
elif else
A list of all exported environment and user-defined variables in a shell can be viewed with what command below
env
What permission (when applied to a directory) allows a user to enter the directory and work with directory contents?
execute
After a shell is no longer needed, what command can be given to exit the shell?
exit
Which command allows user-defined variables to be accessed by subshells
export
What filesystem below perform journaling?
ext4
Select the command that can be used to create partitions that will be stores in an MBR after installation
fdisk
Errors on a filesystem are common on most filesystems. what do these errors indicate?
filesystem corruption
What command can be used to check different kinds of filesystems on Linux for errors
fsck
some linux distributions have the ability to boot an image from install media and run entirely from RAM. What is the name for this kind of image?
live media image
In order to create a hard link, what command must be used?
ln
Select the command below that utilizes a premade database that contains a list of all the files on a system
locate
What two commands below can be used to locate files on a filesystem?
locate find
Select below the command and the associated alias available on most linux systems that display a long listing for each file in a directory?
ls -l ll
What two commands can be used to show information about physical volumes and logical volumes respectively?
lvdisplay vgdisplay
the apropos list command produces the same results as which command below
man -k list
When displaying a large text file, what two commands provide the ability to show text in a page by page fashion?
more, less
To mount all filesystems in the /etc/fstab file that are intended to mount at boot time, what command can be used?
mount -a
What operator below is known as the NOT operator?
!
What character combination at the start of a shell script are referred to as a hashpling, and allows for the specification of the shell the interprets the contents of the script?
#!
The contents of a certain variable in memory can be viewed using which metacharacter below in combination with the echo command?
$
What two characters below should not be used in filenames?
$ *
What metacharacter indicates background command execution?
&
What number represents the stderr file descriptror?
2
a hard drive or SSD can be divided into partitions. What is the maximum number of primary partitions that can be used on these devices?
4
Select the mode below that corresponds to setting r-x
5
When using a chmod command, the mode rwx can be represented by which number?
7
at the vi command mode prompt, what key combination below will force a quit from the vi editor without saving changes?
:q!
What metacharacter can be used to issue two commands to be run in consecutive order, without piping or redirecting output
;
What metacharacter should be used to append stdout to a file
>>
The two main competing GUI environments available in linux are:
GNOME, KDE
What stipulates the source code of any software published under its license must be freely available
GNU public license
Prior to performing an installation of Linux, the hardware components of the target system should be checked against what known compatible list below?
HCL (hardware capacity list)
Which of the following is the greatest expense for companies using linux?
Hiring people to maintain the Linux System
The core component the linux operating system is:
Kernel
The linux kernel was developed and released in 1991 by:
Linus Torvalds
when the core components of the linux operating system are packaged together with other open source software, it is called a:
Linux distribution
What two options below are examples of common UNIX flavors?
Macintosh OS X, HP-UX
When viewing the version number for a linux kernel, what number indicates the stability of the kernel
Minor number
Because Linux has the ability to manage thousands of tasks at the same time, including allowing multiple users to access the system simultaneously it is referred to an operating system that is:
Multitasking, multiuser
the overall cost of using a particular operating system is known as?
Total cost of ownership
At minimum, Linux typically requires only two partitions to be created: a partition that is mounted to the root directory, and a partition for virtual memory
True
Each computer on a network requires a unique way to identify itself and to refer to other computers. This is accomplished by using IP addresses
True
Many programming function libraries and UNIX-like commands appeared in the 1980s as a result of the work on the GNU project
True
Open source software(OSS) is freely developed and continuously improved by a large community of software developers
True
The default desktop environment in Fedora is Gnome. It can also be changed by installing additional desktop environments.
True