NDG Linux Essentials 2.21 | Final Modules 10-18 | Chapter 10-18 Exam Answers Full 100%

NDG Linux Essentials 2.21 | Final Modules 10-18 | Chapter 10-18 Exam Answers Full 100% 2023

These are questions of Cisco NDG Linux Essentials 2.21 Final Chapter 10-18 Exam Answers full 100% with the latest version and updated in 2023. All answers are verified by experts with explanations.

  1. A pipe allows you to…

    • …type multiple commands at one prompt.
    • …send the output of a command to a file.
    • …send the same input to multiple commands.
    • …send the output of one command to another.

  2. Channel 2 is:

    • STDOUT
    • STDERR
    • STDIN
    • STDALL

  3. The grep command…

    • …will display the line numbers in a file that contain a specified Regular Expression.
    • …will display all the lines in a file containing the specified Regular Expression.
    • …will display all the lines that begin with the specified Regular Expression.
    • …is not case sensitive.

  4. Which of the following commands can be used to scroll through a text file?(choose two)

    • more
    • cat
    • some
    • less

  5. Which command can be used to print line numbers?

    • num
    • nl
    • ln
    • sort

  6. Which are appropriate editors for writing shell scripts?(choose two)

    • nano
    • vi
    • LibreOffice Writer
    • Firefox
    • /bin/bash

  7. Which of the following are correct about for and while loops?(choose two)

    • for loops require a variable over which to iterate
    • for loops have a test each cycle to determine if it should run again
    • while loops have a test each cycle to determine if it should run again
    • for loops operate over a fixed list of items
    • while loops operate over a fixed list of items

  8. What is the correct way to assign the word “Hello” to a variable?

    • $A=”Hello”
    • echo “Hello” > A
    • A=”Hello”
    • A = “Hello”
    • echo $A “Hello”

  9. What is the correct way to save the current directory to a variable?

    • pwd $A
    • pwd | $A
    • A=`pwd`
    • A=pwd
    • A=cwd

  10. What is the meaning of $(( $i + 1)) ?

    • This runs the command stored in variable i
    • 1 will be added to the i variable
    • If i is 0, the loop will stop
    • This will return the value of the first argument to the script
    • This will return the value of the next argument to the script

  11. Which of the following are valid CPU types for Intel-based platforms?(choose two)

    • 24-bit
    • 32-bit
    • 48-bit
    • 64-bit

  12. Choose all of the following statements that are true in regard to virtual RAM: (choose three)

    • Virtual RAM is stored in the CPU
    • Virtual RAM is also called swap space
    • Virtual RAM is stored on a hard drive
    • Virtual RAM is used when available physical RAM is low.

  13. A division of a hard drive may be referred to as a _______ .

    • label
    • portion
    • partition
    • block

  14. The fdisk command is a tool used for working with the MBR partitioned disks. True or False?

    • True
    • False

  15. Which of the following commands will display CPU information?(choose two)

    • arch
    • showcpu
    • lspic
    • cpuinfo
    • lscpu

  16. The Process ID (PID) of the init process is:

    • varies
    • 1
    • 100
    • 0

  17. What directory typically contains log files?

    • /usr/log
    • /proc/loc
    • /var/log
    • /log

  18. The /var directory has files that change over time. True or False?

    • True
    • False

  19. Which of the following commands will allow you to view all processes on the system?(choose two)

    • ps -A
    • ps aux
    • ps -eLf
    • ps
    • ps -ef

  20. Which directory is the root of the filesystem?

    • /
    • /root
    • /sys
    • /home
    • /var

  21. A service is…

    • …a file that contains configuration information.
    • …a feature provided by one computer to another.
    • …another name for a computer’s hostname.
    • …like an IP address.

  22. Only servers have hostnames. True or False?

    • True
    • False

  23. Which of the following are valid IPv4 addresses?(choose two)

    • 192.301.25.25
    • 192.105.10.10.2
    • 192.105.10.10
    • 10.33.55.77

  24. Which of the following commands will allow you to log into a remote machine?

    • netstat
    • dig
    • route
    • ssh

  25. Which files contain user account information?(choose two)

    • /etc/shadow
    • /etc/passwords
    • /etc/group
    • /etc/passwd

  26. Which command will display the UID, GID and groups your current user belongs to?

    • id
    • Who
    • about
    • whoami

  27. Each user belongs to at least one group. True or False?

    • True
    • False

  28. Which command will display the users that are currently logged in to the system?

    • whoami
    • about
    • who
    • id

  29. Which command will display the groups that the root user belongs to?

    • groups -a
    • all -t
    • all
    • id root
    • group -r

  30. UIDs 1-499 are usually reserved for what kind of users?

    • Are not used for user accounts, but for group accounts
    • System accounts, such as server processes
    • Log-in (human) users
    • Remote log-in accounts

  31. Which of the following options for the useradd command allows root to specify the UID to be associated with the account?

    • -g
    • -M
    • -u
    • -G

  32. Which command can be used to determine a user’s most recent log in?

    • shell
    • login
    • last
    • history

  33. Which of the following files contains encrypted user password information?

    • /etc/passwd
    • /etc/usr
    • /etc/group
    • /etc/shadow

  34. Which of the following options for the useradd command allows you to use a different primary group then the default?

    • -G
    • -g
    • -u
    • -U

  35. Which of the following commands can be used to modify a user?

    • useradd
    • moduser
    • adduser
    • usermod

  36. Which of the following are methods for setting permissions using the chmod command?(choose two)

    • primary
    • symbolic
    • letter
    • octal

  37. The chown command can be used to change the owner and group of a file. True or False?

    • True
    • False

  38. The chmod command can be used on a file by:

    • The file owner
    • A user that belongs to the files current group
    • The file owner and root
    • Only root

  39. The execute permission is never set on files by default. True or False?

    • True
    • False

  40. The sticky bit permission…

    • …changes the group ownership of existing files in a directory.
    • …prevents others from removing files they don’t own from a common 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.

  41. The setuid permission…

    • …reports the output of a script to the owner.
    • …allows a command to be run as the file owner.
    • …prevents the owner of a file from being changed.
    • …allows files in a directory to be manipulated as by the directory owner.

  42. The setgid permission… (choose two)

    • …allows a command to be run as the group owner of the file.
    • …prevents the group owner of a file from being changed.
    • …allows files created in a directory to be owned by the group that owns the directory.
    • …can only be set on files.

  43. Which of the following ls commands, when executed, will only show information about the directory itself? (choose two)

    • ls -h
    • ls -d
    • ls -ld
    • ld -a