5250895
Descrição
Quiz por Yeredaia Miranda, atualizado more than 1 year ago
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Criado por Yeredaia Miranda
mais de 8 anos atrás
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Questão 1
Questão
One of the jobs of the kernel is to:
Responda
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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
Questão 2
Questão
Unix is: (choose two)
Responda
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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
Questão 3
Questão
Linux is written in:
Responda
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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
Questão 4
Questão
Source code refers to:
Responda
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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
Questão 5
Questão
Whats is the standard option to provide a command line program to view its documentation?
Responda
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-- info
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-- doc
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-- help
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- h
Questão 6
Questão
The command man -k is the same as the command apropos
Responda
- True
- False
Questão 7
Questão
The whatis command is the same as man -w
Responda
- True
- False
Questão 8
Questão
The directory where additional documentation for software packages most likely can be found is:
Responda
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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
Questão 9
Questão
Hidden files are files that begin with what character?
Responda
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A plus (+)
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A dash (-)
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A period (.)
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An asterisk (*)
Questão 10
Questão
What option for the ls command will display all files, including hidden files?
Responda
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-w
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-H
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-L
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-a
Questão 11
Questão
The top-level directory on a Linux system is represented as:
Responda
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/
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/root
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/home
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C:
Questão 12
Questão
Is the following path absolute or relative?
/etc/ppp
Responda
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Relative
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Absolute
Questão 13
Questão
Is the following path absolute or relative?
sysadmin/Documents
Responda
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Relative
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Absolute
Questão 14
Questão
Compression on a file works by:
Responda
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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
Questão 15
Questão
In general, for which of the following would you want to use lossless compression?
Responda
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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
Questão 16
Questão
Lossy compression: (choose three)
Responda
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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
Questão 17
Questão
You type gzip myfile.tar. Whats happens? (choose two)
Responda
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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
Questão 18
Questão
Error messages generated by commands are sent where by default?
Responda
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STDIN
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Log files
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STDERR
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STDOUT
Questão 19
Questão
A successful command will print output to STDOUT
Responda
- True
- False
Questão 20
Questão
Which of the following commands will direct error messages to the file, error.log?
Responda
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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
Questão 21
Questão
A pipe allows you to...
Responda
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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
Questão 22
Questão
Channel 2 is:
Responda
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STDERR
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STDIN
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STDALL
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STDOUT
Questão 23
Questão
The echo command:
Responda
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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
Questão 24
Questão
A file begins with #!/bin/csh. This means:
Responda
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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
Questão 25
Questão
Which are appropriate editors for writing shell scripts? (choose two)
Responda
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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
Questão 26
Questão
Most of nano's commands take the form of:
Responda
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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
Questão 27
Questão
What does this shell script do?
FOO=/tmp/foo
if [! -d $FOO]; then
mkdir $FOO
fi
Responda
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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
Questão 28
Questão
Which of the following are valid CPU types for Intel-based platforms? (choose two)
Responda
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48 bit
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24 bit
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64 bit
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32 bit
Questão 29
Questão
64 bit platforms can access more memory than 32 bit platforms
Responda
- True
- False
Questão 30
Questão
What does the acronym RPM mean?
Responda
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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
Questão 31
Questão
One way to install new software on a Linux system is to use a package management system
Responda
- True
- False
Questão 32
Questão
When you execute the dmesg command, the system displays messages that are generated by the kernel
Responda
- True
- False
Questão 33
Questão
Which of the following are package management commands for distributions with software distributed in files ending in .deb? (choose three)
Responda
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rpm
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apt-get
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dpkg
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aptitude
Questão 34
Questão
Which of the following are package management commands for distributions with software distributed in files ending in .rpm? (choose three)
Responda
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yum
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apt-get
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rpm
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yumex
Questão 35
Questão
Which of the following would be considered a host?
Responda
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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
Questão 36
Questão
A service is...
Responda
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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
Questão 37
Questão
A network packet contains... (choose two)
Responda
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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
Questão 38
Questão
Only servers have hostnames
Responda
- True
- False
Questão 39
Questão
Which files contain user account information? (choose two)
Responda
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/etc/passwd
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/etc/shadow
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/etc/group
Questão 40
Questão
Which user can view the /etc/shadow file?
Responda
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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
Questão 41
Questão
Which command will display the UID, GID and groups your current user belongs to?
Responda
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id
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whoami
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who
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about
Questão 42
Questão
Each user belongs to at least one group
Responda
- True
- False
Questão 43
Questão
Which command will display the users that are currently logged in to the system?
Responda
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who
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about
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whoami
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id
Questão 44
Questão
UIDs 1-500 are usually reserved for what kind of users?
Responda
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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
Questão 45
Questão
If a user is deleted, the files and directories that the user owned...
Responda
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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
Questão 46
Questão
Which of the following options for the useradd command allows root to specify the UID to be associated with the account?
Responda
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-g
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-u
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-U
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-G
Questão 47
Questão
Which of the following options for the useradd command allows root to specify supplementary groups the user will be a member of?
Responda
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-u
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-U
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-g
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-G
Questão 48
Questão
On a system that does not user UPG, the useradd command will also create a user group. For example, user bob, group bob.
Responda
- True
- False
Questão 49
Questão
Which of the following commands set "other" permissions on the file to r-x?
Responda
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chmod o+rx file
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chmod o-r-w file
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chmod o=r+x file
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chmod o=rx file
Questão 50
Questão
Which of the following commands sets "other" permissions on file to r-x?
Responda
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chmod 774 file
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chmod 776 file
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chmod 775 file
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chmod 777 file
Questão 51
Questão
Onlye one set (user, group, other) of permission can be changed at once using the symbolic method
Responda
- True
- False
Questão 52
Questão
Which of the following are methods for setting permissions using the chmod command? (choose two)
Responda
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letter
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octal
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symbolic
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binay
Questão 53
Questão
The chown command can be used to change the owner and group of a file
Responda
- True
- False
Questão 54
Questão
The Samba application is a:
Responda
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Mail Server
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Security Server
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File Server
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Web Server
Questão 55
Questão
Which of the following are examples of desktop software? (choose two)
Responda
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Web server
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Web browser
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File share
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Compiler
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Music player
Questão 56
Questão
If you wanted to set up a blog, which software would be most helpful?
Responda
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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
Questão 57
Questão
Which of the following pieces of software deal with file sharing? (choose three)
Responda
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NFS
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X-Windows
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Netatalk
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Samba
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PostgreSQL
Questão 58
Questão
If you wanted to create and print an invoice, which software could you use?
Responda
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GNOME
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Compiz
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Firefox
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LibreOffice
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Evolution
Questão 59
Questão
Which of the following is true about graphical mode? (choose three)
Responda
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You have menus and tools to help you find what you are looking for
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You access this mode by logging into a graphical display
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After login, you are provided with a command prompt
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After login, you are provided with a desktop
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You cannot use your mouse
Questão 60
Questão
Which of the following is provided by a graphical interface that isn't normally provided to a non graphical interface? (choouse four)
Responda
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Desktop
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Shell
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Windows
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Popups
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Menus
Questão 61
Questão
A server is likely to be running in graphical mode
Responda
- True
- False
Questão 62
Questão
In graphical mode, you can get to a shell by running which applications? (choose two)
Responda
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guiterm
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gbash
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terminal
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xconsole
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xterm
Questão 63
Questão
Which of the following are traits of a multiuser operating system? (choose three)
Responda
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An administrative user gets a dedicated CPU
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Users can protect their information from other users
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Resources are shared between users
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Many users can log in simultaneously with a unique account
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Each user can only log in once per day
Questão 64
Questão
Select all the applications that provide access to the Command Line Interface (CLI)? (choose two)
Responda
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Virtual Terminal
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Firefox
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Opera
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Windows Terminal
Questão 65
Questão
Which environment varible contains a list of directories that is searched for commands to execute?
Responda
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PATH
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EXEC
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PS1
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PS2
Questão 66
Questão
Select the command that can report the location of a command:
Responda
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where
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what
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which
Questão 67
Questão
A pair of single quotes (') will prevent the shell from interpreting any metacharacter
Responda
- True
- False
Questão 68
Questão
The /tmp directory is a temporary directory and will not exist on a system at all times
Responda
- True
- False
Questão 69
Questão
The /var directory has files that change over time
Responda
- True
- False
Questão 70
Questão
The "sticky bit" permission...
Responda
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...prevents others from removing files they don't own from a common directory
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...changes the group ownership of existing files in a directory
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..prevents others from overwriting files they don't own in common directories
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...sets the group ownership of any new file created in a directory
Questão 71
Questão
Which of the following commands will set the "sticky bit" on /shared?
Responda
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chmod 4777 /shared
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chmod 2777 /shared
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chmod 7777 /shared
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chmod 1777 /shared
Questão 72
Questão
The "setuid" permission...
Responda
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...allows a command to be run as the file owner
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...allows file in a directory to be manipulated as by the directory owner
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...prevents the owner of a file from being changed
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...reports the output of a script to the owner
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