CNIT 340 Final
False
A for loop can only loop through numbers. TRUE or FALSE
-All of the above should have their own partition
According to lecture, all of the following except ____ should have its own partition -/ -/home -/var -/etc -all of the above should have their own partition
True
By default, all function variables are global. TRUE or FALSE
", ', and \
Can be used to extend a line
syslog
Can notifiy admins if important files are changed
rsh
Can prevent remote users from using cd or redirects
False
Compiling software from source is preferred because dependencies are automatically added in installation. TRUE or FALSE
display
In X-Windows a keyboard, mouse, and a monitor are known as a
client
In X-Windows the application itself is known as a
server
In X-Windows the software that shows the output of the application is known as a
seq
an external program that creates a sequence of space delimited values
True
an until loop is the opposite of a while loop. TRUE or FALSE
root filesystem
before any filesystem can be used it must be mounted to the _____?
array variables
can hold multiple elements at a time
scalar variables
can only hold one element (value) at a time
True
nesting more than four levels deep can be difficult to debug. TRUE or FALSE
True
UNIX is command line only. TRUE or FALSE
CUPS
UNIX printing approach supports windows printing clients
True
Unix has only one file system. TRUE or FALSE
unenforce
Used to generate SELinux policy code from logging
^ or !
Used to negate a character match
-R
Used to perform actions on directories and subdirectories
-f
Used to skip confirmations
3
What SysV run level is multi-user.target run at
0
What SysV run level is poweroff.target ran at
1
What SysV run level is rescue.target ran at
/etc/passwd and /etc/group
What UNIX config file associates users with groups?
/etc/passwd
What UNIX config file contains the list of users?
IP and route
What command or file is used to set the default router of a UNIX system?
chkconfig <service> on
What is the Sys V equivalent of systemctl enable <service>
smb.conf
What is the main config file for SAMBA?
3
What is the most commonly used run more for servers
rwxr-xr--
What is the resulting permission sequence for the following UNIX command? chmod 754 /directory/file
2
What run level is multi-user mode (non-networked) ran at
make
What utility typically automates the process of installing software from source code?
8
What will be the output of echo $(( 4 + 2 + ( 3 - 1 ) * 6 / 5 ))
True
When evaluated by the if command, a return code of 0 evaluates to true, all other return codes evaluate to false. TRUE or FALSE
True
When using a for loop to loop through a list of numbers, the numbers can be in any order. TRUE or FALSE
False
When using sed, the -i option can be used to concatenate multiple sed actions. TRUE or FALSE
grep
Which command returns lines from a file containing a search string?
/etc/hostname or /etc/hosts
Which file stores the Fully Qualified Domain Name (FQDN) for a UNIX system?
drwx------ tmiller tmiller
Which of the following is most reasonable set feor tmiller's home directory as shown in ls -l
stdlog
Which of the following is not a UNIX I/O Stream?
Install via CUPS web interface & use lpadmin command
Which of the following is the preferred method to add a printer in CUPS
False
You should avoid meta-characters in filenames because you will not be able to access the file. TRUE or FALSE
False
[$VAR1 > 10 && $VAR1 < 20] is a valid if condition
False
if you know how to administer one flavor of unix you know how to administer them all. TRUE or FALSE
True
it is best practice to type all user-defined variables in ALL CAPS. TRUE or FALSE
select loop
list a set of choices from which the user makes a selection
/lost+found
lost files directory
? (globbing)
matches any character one time
* (globbing)
matches any character zero or more times
[character set] (globbing)
matches the characters stated one time
False
sed cannot be used to change the content of files, it only changes what is display on stdout. TRUE or FALSE
/sbin
system binaries
/etc
system configuration informatoin
/tmp
temporary files
-package managers/packages
this software installation technique includes yum and apt
False
uniq will remove duplicate lines in a file. TRUE or FALSE
?
used to represent one of a single character
/home
user directories
False
user-defined variables do not need to start with a letter or underscore, and can start with numbers. TRUE or FALSE
compares directories
what does dircmp do?
/etc/fstab
where a list of filesystems to automatically mount is stored in a config file
/usr
where additionally installed software is located
stderr
where error messages are sent
/bin
where executables for basic operation are located
stdin
where input to the application is sourced
stdout
where output from the application is sourced
/var
where spooling, cache, and log files are located
True
If a function is successful, it should return 0. TRUE or FALSE
True
If a variable is defined in a function with typeset command, then it will only be accessible within that function. TRUE or FALSE
False
If you run a script that has a syntax error on line 25, the previous commands won't execute. TRUE or FALSE
systemctl
In CentOS 7 Linux, which command can be used to change the run level?
setenforce
Disables SELinux protections
\
Escapes a single character
'
Escapes multiple instances of all meta characters
Shell doesn't keep track of 1-199
Given that NAME[0] = Walter and NAME[200]=Smith, Which is true?
True
Samba can allow a UNIX server to act as an Active Directory member server as well as a Domain Controller. TRUE or FALSE
False -umount
Media is unmounted via unmount command. TRUE or FALSE
False
One of the main benefits of NFSv4 is that it greatly simplifies the firewall rules used to secure an NFS server. TRUE or FALSE
chown
Ownership is changed with this command
$ and "
Preserves the meta character meaning
symbolic links
The files in the /etc/rc3.d directory are
True
The order is as important as the content of packet filter rules. TRUE or FALSE
-the individual owner -the group owner -everyone
The three owners of every file/directory are
False
There are three types of user defined variables: array variables, string variables, and seeker variables. TRUE or FALSE
-package managers/packages -ports collection
This software installation technique automatically handles dependencies
-ports collection
This software installation technique is FreeBSD specific
compile from source
This software installation technique is natively supported by multiple UNIX versions (BSD, Linux, AIX, HPUX, etc.)
True
To have tail keep a file open so that updates to the file can be monitored use the -f option. TRUE or FALSE
for loop
perform code once for each item in a list
until loop
perform code until a condition becomes true
while loop
perform code while a condition is true
/dev
placeholders for devices
/proc
placeholders for running processes
.
regex expression matches any character at one time
*
regex expression that matches zero or more of the preceding character
$
regex expression that represents the end of a line
cut
returns characters from a string based on position or delimited field