5250895
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Quiz von Yeredaia Miranda, aktualisiert more than 1 year ago
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Erstellt von Yeredaia Miranda
vor mehr als 8 Jahre
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Frage 1
Frage
One of the jobs of the kernel is to:
Antworten
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Manage the system's resources
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Turn source code into machine code
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Load the operating system after the computer is turned on
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Transfer mail from one machine to another
Frage 2
Frage
Unix is: (choose two)
Antworten
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An operating system
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A type of hardware
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A trademark
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A distribution of Linux
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A text editor
Frage 3
Frage
Linux is written in:
Antworten
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C
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.NET
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C++
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Java
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Perl
Frage 4
Frage
Source code refers to:
Antworten
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The version of a program that the computer runs on the CPU
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The license that dictates how you may use and share the software
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The interface that software uses to talk to the kernel
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A human readable version of computer software
Frage 5
Frage
Whats is the standard option to provide a command line program to view its documentation?
Antworten
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-- info
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-- doc
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-- help
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- h
Frage 6
Frage
The command man -k is the same as the command apropos
Antworten
- True
- False
Frage 7
Frage
The whatis command is the same as man -w
Antworten
- True
- False
Frage 8
Frage
The directory where additional documentation for software packages most likely can be found is:
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/var/lib/doc
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/usr/software/doc
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/usr/share/doc
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/var/share/doc
Frage 9
Frage
Hidden files are files that begin with what character?
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A plus (+)
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A dash (-)
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A period (.)
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An asterisk (*)
Frage 10
Frage
What option for the ls command will display all files, including hidden files?
Antworten
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-w
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-H
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-L
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-a
Frage 11
Frage
The top-level directory on a Linux system is represented as:
Antworten
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/
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/root
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/home
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C:
Frage 12
Frage
Is the following path absolute or relative?
/etc/ppp
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Relative
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Absolute
Frage 13
Frage
Is the following path absolute or relative?
sysadmin/Documents
Antworten
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Relative
-
Absolute
Frage 14
Frage
Compression on a file works by:
Antworten
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Removing the high order bit from each byte
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Consolidating multiple files into one
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Removing redundant information
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Storing most of the data on removable media and just leaving a pointer
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Eliminating gaps within the file
Frage 15
Frage
In general, for which of the following would you want to use lossless compression?
Antworten
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An mp3 audio file
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A movie
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A log file
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A JPEG image
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An encrypted email
Frage 16
Frage
Lossy compression: (choose three)
Antworten
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Is often used with documents
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Decompresses to an identical version as the original
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Sacrifices some quality
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Usually results better compression than lossless
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Is often used with images
Frage 17
Frage
You type gzip myfile.tar. Whats happens? (choose two)
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myfile.tar.gz holds a compressed version of myfile.tar
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An error; you forgot to pass the name of the output file
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An error; you forgot to specify the file with -f
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myfile.tar is unarchived into the current directory
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myfile.tar is removed
Frage 18
Frage
Error messages generated by commands are sent where by default?
Antworten
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STDIN
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Log files
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STDERR
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STDOUT
Frage 19
Frage
A successful command will print output to STDOUT
Antworten
- True
- False
Frage 20
Frage
Which of the following commands will direct error messages to the file, error.log?
Antworten
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ls /root > error.log
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ls /root >> error.log
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ls /root 2> error.log
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ls /root $> error.log
Frage 21
Frage
A pipe allows you to...
Antworten
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...send the same input to multiple commands
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...send the output of one command to another
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...send the output of a command to a file
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...type multiple commands at one prompt
Frage 22
Frage
Channel 2 is:
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STDERR
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STDIN
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STDALL
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STDOUT
Frage 23
Frage
The echo command:
Antworten
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Tests a variable for duplication
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Duplicates the input stream to the output stream
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Is used for variable assignment
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Is used to output text to the console
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Copies variables from one the another
Frage 24
Frage
A file begins with #!/bin/csh. This means:
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C Shell compatibility mode is enabled
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Running the script will invoke /bin/csh to interpret the rest of the file
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The operator should not be using /bin/csh
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This is a Perl script
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Nothing, this is a comment
Frage 25
Frage
Which are appropriate editors for writing shell scripts? (choose two)
Antworten
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nano
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LibreOffice Writer
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/bin/bash
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vi
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Firefox
Frage 26
Frage
Most of nano's commands take the form of:
Antworten
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Escape followed by another character
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Mouse clicks
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The F1 through F12 function keys
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Alt and another character
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Control and another character
Frage 27
Frage
What does this shell script do?
FOO=/tmp/foo
if [! -d $FOO]; then
mkdir $FOO
fi
Antworten
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Nothing, since there is a problem with the conditions in the if statement
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Makes the /tmp/foo directory if a file by that name exists
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Creates /tmp/foo if it does not exist
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Creates /tmp/foo and raises and error if there is a problem
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Outputs a message to the screen
Frage 28
Frage
Which of the following are valid CPU types for Intel-based platforms? (choose two)
Antworten
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48 bit
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24 bit
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64 bit
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32 bit
Frage 29
Frage
64 bit platforms can access more memory than 32 bit platforms
Antworten
- True
- False
Frage 30
Frage
What does the acronym RPM mean?
Antworten
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Relocate Package Manager
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Return Package Management
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RPM Package Management
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Recursive Package Manager
Frage 31
Frage
One way to install new software on a Linux system is to use a package management system
Antworten
- True
- False
Frage 32
Frage
When you execute the dmesg command, the system displays messages that are generated by the kernel
Antworten
- True
- False
Frage 33
Frage
Which of the following are package management commands for distributions with software distributed in files ending in .deb? (choose three)
Antworten
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rpm
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apt-get
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dpkg
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aptitude
Frage 34
Frage
Which of the following are package management commands for distributions with software distributed in files ending in .rpm? (choose three)
Antworten
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yum
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apt-get
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rpm
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yumex
Frage 35
Frage
Which of the following would be considered a host?
Antworten
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A printer attached to the network via an IP addres
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A CDROM
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The computer's hard drive
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A network cable
Frage 36
Frage
A service is...
Antworten
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...a file that constains configuration information
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...another name for a computer's hostname
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...a feature provided by one computer to another
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...like an IP address
Frage 37
Frage
A network packet contains... (choose two)
Antworten
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...the IP address of the destination machine
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...a hard drive partition
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...the name of the router
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...the IP address of the source machine
Frage 38
Frage
Only servers have hostnames
Antworten
- True
- False
Frage 39
Frage
Which files contain user account information? (choose two)
Antworten
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/etc/passwd
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/etc/shadow
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/etc/group
Frage 40
Frage
Which user can view the /etc/shadow file?
Antworten
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The root user
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No users
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Any member of the password group
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All users
Frage 41
Frage
Which command will display the UID, GID and groups your current user belongs to?
Antworten
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id
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whoami
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who
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about
Frage 42
Frage
Each user belongs to at least one group
Antworten
- True
- False
Frage 43
Frage
Which command will display the users that are currently logged in to the system?
Antworten
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who
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about
-
whoami
-
id
Frage 44
Frage
UIDs 1-500 are usually reserved for what kind of users?
Antworten
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Are not used for user accounts, but for group accounts
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System accounts, such as server processes
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Remote log-in accounts
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Log-in (human) users
Frage 45
Frage
If a user is deleted, the files and directories that the user owned...
Antworten
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...are deleted as well
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...will have no UID owner
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...will show a UID as the owner, but not user name
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...will have no user owner
Frage 46
Frage
Which of the following options for the useradd command allows root to specify the UID to be associated with the account?
Antworten
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-g
-
-u
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-U
-
-G
Frage 47
Frage
Which of the following options for the useradd command allows root to specify supplementary groups the user will be a member of?
Antworten
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-u
-
-U
-
-g
-
-G
Frage 48
Frage
On a system that does not user UPG, the useradd command will also create a user group. For example, user bob, group bob.
Antworten
- True
- False
Frage 49
Frage
Which of the following commands set "other" permissions on the file to r-x?
Antworten
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chmod o+rx file
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chmod o-r-w file
-
chmod o=r+x file
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chmod o=rx file
Frage 50
Frage
Which of the following commands sets "other" permissions on file to r-x?
Antworten
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chmod 774 file
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chmod 776 file
-
chmod 775 file
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chmod 777 file
Frage 51
Frage
Onlye one set (user, group, other) of permission can be changed at once using the symbolic method
Antworten
- True
- False
Frage 52
Frage
Which of the following are methods for setting permissions using the chmod command? (choose two)
Antworten
-
letter
-
octal
-
symbolic
-
binay
Frage 53
Frage
The chown command can be used to change the owner and group of a file
Antworten
- True
- False
Frage 54
Frage
The Samba application is a:
Antworten
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Mail Server
-
Security Server
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File Server
-
Web Server
Frage 55
Frage
Which of the following are examples of desktop software? (choose two)
Antworten
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Web server
-
Web browser
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File share
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Compiler
-
Music player
Frage 56
Frage
If you wanted to set up a blog, which software would be most helpful?
Antworten
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MySQL
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Postfix
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WordPress
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Dovecot
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Samba
Frage 57
Frage
Which of the following pieces of software deal with file sharing? (choose three)
Antworten
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NFS
-
X-Windows
-
Netatalk
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Samba
-
PostgreSQL
Frage 58
Frage
If you wanted to create and print an invoice, which software could you use?
Antworten
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GNOME
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Compiz
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Firefox
-
LibreOffice
-
Evolution
Frage 59
Frage
Which of the following is true about graphical mode? (choose three)
Antworten
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You have menus and tools to help you find what you are looking for
-
You access this mode by logging into a graphical display
-
After login, you are provided with a command prompt
-
After login, you are provided with a desktop
-
You cannot use your mouse
Frage 60
Frage
Which of the following is provided by a graphical interface that isn't normally provided to a non graphical interface? (choouse four)
Antworten
-
Desktop
-
Shell
-
Windows
-
Popups
-
Menus
Frage 61
Frage
A server is likely to be running in graphical mode
Antworten
- True
- False
Frage 62
Frage
In graphical mode, you can get to a shell by running which applications? (choose two)
Antworten
-
guiterm
-
gbash
-
terminal
-
xconsole
-
xterm
Frage 63
Frage
Which of the following are traits of a multiuser operating system? (choose three)
Antworten
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An administrative user gets a dedicated CPU
-
Users can protect their information from other users
-
Resources are shared between users
-
Many users can log in simultaneously with a unique account
-
Each user can only log in once per day
Frage 64
Frage
Select all the applications that provide access to the Command Line Interface (CLI)? (choose two)
Antworten
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Virtual Terminal
-
Firefox
-
Opera
-
Windows Terminal
Frage 65
Frage
Which environment varible contains a list of directories that is searched for commands to execute?
Antworten
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PATH
-
EXEC
-
PS1
-
PS2
Frage 66
Frage
Select the command that can report the location of a command:
Antworten
-
where
-
what
-
which
Frage 67
Frage
A pair of single quotes (') will prevent the shell from interpreting any metacharacter
Antworten
- True
- False
Frage 68
Frage
The /tmp directory is a temporary directory and will not exist on a system at all times
Antworten
- True
- False
Frage 69
Frage
The /var directory has files that change over time
Antworten
- True
- False
Frage 70
Frage
The "sticky bit" permission...
Antworten
-
...prevents others from removing files they don't own from a common directory
-
...changes the group ownership of existing files in a directory
-
..prevents others from overwriting files they don't own in common directories
-
...sets the group ownership of any new file created in a directory
Frage 71
Frage
Which of the following commands will set the "sticky bit" on /shared?
Antworten
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chmod 4777 /shared
-
chmod 2777 /shared
-
chmod 7777 /shared
-
chmod 1777 /shared
Frage 72
Frage
The "setuid" permission...
Antworten
-
...allows a command to be run as the file owner
-
...allows file in a directory to be manipulated as by the directory owner
-
...prevents the owner of a file from being changed
-
...reports the output of a script to the owner
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