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Examen Simulacro II: Linux Essentials

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Quiz on Examen Simulacro II: Linux Essentials, created by Carlos Alberto Jara Alva on 17/11/2022.
Carlos Alberto Jara Alva
Quiz by Carlos Alberto Jara Alva, updated more than 1 year ago
Carlos Alberto Jara Alva
Created by Carlos Alberto Jara Alva about 2 years ago
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Resource summary

Question 1

Question
How could one search for the file foo.txt under the directory /home?
Answer
  • find /home -name foo.txt
  • find /home foo.txt
  • search /home -file foo.txt
  • search /home foo.txt

Question 2

Question
Which function does a shell program server?
Answer
  • It receives user commands and executes them
  • It is responsible for logging a user into the system
  • It is responsible for establishing a connection to another computer
  • It provides a graphical environment

Question 3

Question
The output of the program date should be saved in the variable actdat. What is the correct statement?
Answer
  • Actdat='date'
  • Date | acdat
  • Set actdat='date'
  • Actdat=date

Question 4

Question
Which of the following statements may be used to access the second command line argument to a script?
Answer
  • "$1"
  • "$2"
  • '$2'
  • $1

Question 5

Question
Which command will display running process information in realtime?
Answer
  • ps current
  • top
  • show current
  • Process

Question 6

Question
Which of the following file systems is most commonly used for Linux distributions?
Answer
  • NTFS
  • FAT32
  • ext4
  • HFS+

Question 7

Question
Which one of the following statements concerning Linux passwords is true?
Answer
  • Passwords are only stored in encrypted form
  • Passwords may never start with a non-letter
  • All passwords can be decrypted using the system administrator's master password
  • Users cannot change their password once it has been set

Question 8

Question
Why is the file data.txt empty after executing sort data.txt > data.txt?
Answer
  • Because the file gets truncated before the sort is executed
  • Because, if data.txt is empty now, it must have been empty before
  • Because sort cannot sort text files, only binary files
  • Because sort detects that both files are the same

Question 9

Question
Where is the BIOS located?
Answer
  • RAM
  • LCD Monitor
  • Hard drive
  • Motherboard

Question 10

Question
You have a program called /user/bin/foo. You wish to create a symbolic link, /home/user/bin/foo, that points to it. Which command will do this task?  
Answer
  • ln -s /user/bin/foo /home/user/foo
  • ln -sys /home/user/foo /user/bin/foo
  • ln /user/bin/foo /home/user/foo
  • ln /home/user/foo /user/bin/foo

Question 11

Question
What keyword is missing from the following segment of the shell script? for i in*;----cat $idone
Answer
  • Endo
  • Do
  • Then
  • Fi

Question 12

Question
What is the command that will show system boot time messages?
Answer
  • Display system boot
  • Messages
  • dmesg
  • lspci

Question 13

Question
Which of the following is a Linux based operating system for use on mobile devices?
Answer
  • CentOS
  • Debian
  • Android
  • Fedora

Question 14

Question
Which network interface always exists in a Linux system?
Answer
  • lo
  • wlan0
  • vlan0
  • eth0

Question 15

Question
Which command shows if /usr/bin is in the current shell search path?
Answer
  • cat $PATH
  • echo %PATH
  • echo $PATH
  • echo %PATH%

Question 16

Question
What are the three sets of permission for a file?
Answer
  • Administrator, standard user, others
  • User, group, others
  • Administrator, group, others
  • User, standard user, others

Question 17

Question
Which of the following programs is not  a graphical web browser?
Answer
  • Chrome
  • Konqueror
  • Links
  • Firefox

Question 18

Question
After installing a new package, in which directory are you most likely find its configuration file?
Answer
  • /etc
  • /conf
  • /usr
  • /lib

Question 19

Question
What are the three sets of permission for a file?
Answer
  • Administrator, group, others
  • User, group, others
  • User, standard user, others
  • Administrator, standard user, others

Question 20

Question
Which of the following is true about open source software?
Answer
  • Open source software is available for commercial use
  • Open source software is not for sale
  • Open source software can not be copied for free
  • The freedom to redistribute copies must include binary or executable forms of the software but not the source code.

Question 21

Question
What is the preferred source for the installation of new applications?
Answer
  • The distribution's package repository
  • A CD-ROM disk
  • A retail store
  • The vendor's website

Question 22

Question
Which of the following is a combined audio/video interface for transmission of digital data?
Answer
  • HDMI
  • DVD
  • VGA
  • ATI

Question 23

Question
Which of the following commands moves the directory ~/summer-vacation and it content to ~/vacation/2011?
Answer
  • mv ~/summer-vacation ~/vacation/2011
  • mv -R ~/summer-vacation ~/vacation/2011
  • move -R ~/summer-vacation ~/vacation/2011
  • mv /home/summer-vacation /home/vacation/2011

Question 24

Question
Which command line can be used to search help files that mention the word "copy"?
Answer
  • copy help
  • whatis copy
  • man l-k copy
  • copy -help

Question 25

Question
Which of the following software packages is an email server?
Answer
  • Postfix
  • Apache
  • MySQL
  • GIMP

Question 26

Question
Which of the following can be used to access the command line?
Answer
  • Terminal
  • Firefox
  • BIOS
  • XWindow

Question 27

Question
After installing a new package, in which directory are you most likely find its configuration file?
Answer
  • /usr
  • /conf
  • /etc
  • /lib

Question 28

Question
Why is the file data.txt empty after executing sort data.txt > data.txt?
Answer
  • Because the file gets truncated before the sort is executed
  • Because sort cannot sort text files, only binary files
  • Because sort detects that both files are the same
  • Because, if data.txt is empty now, it must have been empty before

Question 29

Question
Which option will cause the echo command NOT to output a trailing newline?
Answer
  • -p
  • -e
  • -n
  • -s

Question 30

Question
Which of the following statements concerning the General Public License (GPL) is true?
Answer
  • If you changed a program you received under the GPL, you must send your changes to the original author for approval
  • GPL software may never be sold for money
  • The GPL is identical to the BSD license
  • The GPL is designed to ensure that the source code of a software remains freely available

Question 31

Question
Identify the proper device for the third partition, on the second hard disk, on the first IDE controller on a PC system. 
Answer
  • /dev/hdb3
  • /dev/hd1b3
  • /dev/hdc1d2p3
  • Dev/hdc1a3

Question 32

Question
Which command lists all files in the current directory that starts with a capital letter?
Answer
  • ls A-Z*
  • ls [A-Z]*
  • ls A-Z
  • ls -uppercase-files

Question 33

Question
How can the normal output of a command be written to a file while discarding the error output?
Answer
  • Command> file2>/dev/null
  • Command /dev/null
  • Command>2>file &1>/dev/null
  • Command>2>discard-error>file

Question 34

Question
Which of the following Ubuntu releases is considered most stable and fit to use for business purposes?
Answer
  • Ubuntu Vanilla
  • LTS
  • Xubuntu
  • Kubuntu

Question 35

Question
The following file is found in which system file? root:x:0:0::/root:/bin/bash
Answer
  • /usr/bin/shadow
  • /etc/passwd
  • /etc/shadow
  • /etc/password

Question 36

Question
Which is a suitable command to find the next appearance of the word hidden in a man page being viewed from the command line?
Answer
  • /hidden
  • /? hidden
  • CTRL-F hidden
  • Find hidden

Question 37

Question
While deleting all files beginning with the letter a there was still the file Access.txt left. Assuming that it had the correct ownership, why was it not deleted?
Answer
  • Linux file names are case sensitive
  • Rm had to be called with the option -R to delete all files
  • Files with extensions need a different treatment
  • The file Access.txt was hidden

Question 38

Question
What is the output of the following command?tail -n 20 test.txt
Answer
  • The last 20 lines of test.txt including the black lines
  • The last 20 lines of test.txt omitting the black lines
  • The last 20 lines of test.txt with line numbers
  • The first 20 lines of test.txt

Question 39

Question
Which of the following commands will display a list of all files in the current directory, including  those that may be hidden?
Answer
  • ls -a
  • ls --hidden
  • ls -h
  • ls --a

Question 40

Question
Which command will display the last line of the file foo.txt?
Answer
  • tail -n 1 foo.txt
  • last -n 1 foo.txt
  • head -n foo.txt
  • tail foo.txt
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