Linux+ Practice Exam

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1. Which command provides the below output?

lsmod

modprobe

lsmod

insmod

rmmod

Question 1 of 50

2. During boot of a system with GRUB, which key allows the ability to go to a command shell and edit the configuration on boot?

shift

Question 2 of 50

3. The modules for the Linux OS kernel reside in the /lib/modules OS directory

True

False

Question 3 of 50

4. Put the Linux high-level boot process steps in order

GRUB executes Kernel
MBR executes GRUB
Init executes Runlevel programs
BIOS executes MBR
Kernel executes Init

Question 4 of 50

5. Which command is used to modify kernel parameters at runtime and also lists information about the parameters being passed to the kernel?

sysctl

lsmod

lskernel

modinfo

Question 5 of 50

6. Which of the following commands provides below output?

route

lsgateway

ifconfig

route

lsgw

Question 6 of 50

7. Which directory contains the configuration files for network interfaces?

/etc/network-scripts

/etc/sysconfig/network-scripts

/var/network-scripts

Question 7 of 50

8. Mounted filesystems would not be re-mounted on reboot unless they have an entry in the which of the following file?

/etc/mnt

/proc/mounts

/var/fstab

/etc/fstab

Question 8 of 50

9. Match the command with its usage

fsck	Used to create an MBR partition on hard disks Unselect Used to check and repair filesystem Unselect Used to print the superblock and block group information Unselect Used to adjust various filesystem parameters Unselect
tune2fs	Used to create an MBR partition on hard disks Unselect Used to check and repair filesystem Unselect Used to print the superblock and block group information Unselect Used to adjust various filesystem parameters Unselect
dumpe2fs	Used to create an MBR partition on hard disks Unselect Used to check and repair filesystem Unselect Used to print the superblock and block group information Unselect Used to adjust various filesystem parameters Unselect
fdisk	Used to create an MBR partition on hard disks Unselect Used to check and repair filesystem Unselect Used to print the superblock and block group information Unselect Used to adjust various filesystem parameters Unselect

Question 9 of 50

10. The make command checks the local system to verify that the necessary components are available

True

False

Question 10 of 50

11. Which command forces yum to check the repositories and easily update installed software packages on a system?

yum -u

yum -update

yum update-all

yum update

Question 11 of 50

12. How many output lines are printed by both tail and head command by default?

Question 12 of 50

13. Match the command with its usage

grep	Used to display the first few lines Unselect Pauses the display one line at a time. Unselect Used to display the last few lines Unselect Used to search text within a file Unselect
less	Used to display the first few lines Unselect Pauses the display one line at a time. Unselect Used to display the last few lines Unselect Used to search text within a file Unselect
head	Used to display the first few lines Unselect Pauses the display one line at a time. Unselect Used to display the last few lines Unselect Used to search text within a file Unselect
tail	Used to display the first few lines Unselect Pauses the display one line at a time. Unselect Used to display the last few lines Unselect Used to search text within a file Unselect

Question 13 of 50

14. Which of the following commands would show default printer on a Linux system?

lpq

lpstat

lpadmin

lpr

Question 14 of 50

15. Which protocol will allow connecting to Windows server from Linux machine?

X11

VNC

RDP

None of the above

Question 15 of 50

16. If you want to switch from text mode to GUI, which of the following runlevel will start GUI?

Runlevel 3

Runlevel 4

Runlevel 5

Runlevel 6

Question 16 of 50

17. Which of the following is a performance analysis tool under Linux, which displays the resource occupancy of each process in real-time, similar to Windows task manager?

top

sar

vmstat

head

Question 17 of 50

18. Below command shows the UEFI or BIOS date and version
dmidecode –t bios

True

False

Question 18 of 50

19. What command would display the last 20 lines of a text document named sys_log.txt?

mode -n 20 sys_log.txt

head -n 20 sys_log.txt

tail -n 20 sys_log.txt

less -n 20 sys_log.txt

Question 19 of 50

20. Which option to the curl command is used with FTP to cause a name-only listing?

-o

-l

-f

-s

Question 20 of 50

21. Which of the following commands will list the libraries on which the command’s argument depends?

lslib

ldd

ldconfig

None of the above

Question 21 of 50

22. Which command is used to delete a user from the system and also delete both the home directory and mail spool files?

userdel -r

deluser

rmuser

userdel -R

Question 22 of 50

23. Which of the following commands provide the below output

passwd

chage

lsid

Question 23 of 50

24. Which command shows the username of your current effective user ID?

whoami

whoru

Question 24 of 50

25. Which character combination is used to append output to a file?

None of the above

Question 25 of 50

26. Which of the following commands can be used to add special formatting to strings for printing?

echo

printf

fprint

Question 26 of 50

27. Which command provides the below output?

homectl

hostname

hostnamectl

lshost

machine-type

Question 27 of 50

28. Which command is used to update the database of the locate command?

locate -u

updatedb

updatelocate

locatedb

Question 28 of 50

29. Which protocol analyzer tool captures network traffic when troubleshooting connections?

dig

wireshark

nslookup

traceroute

Question 29 of 50

30. Which command is used to erase the unwanted files created while attempting to compile the software?

make clean

make remove

make delete

make undo

Question 30 of 50

31. Which directory is used to store files and scripts that are executed at login?

/etc/startup

/etc/login.d

/etc/profile.d

/etc/bin

Question 31 of 50

32. A process that stops executing while waiting for user input is known as a zombie process

True

False

Question 32 of 50

33. Which of the following commands can be used to display a list of all running processes?

ps -e

ps -f

ps -c

ps -i

Question 33 of 50

34. Which command can be used to search for and kill a hung process by its name?

kill

pkill

killall

killhung

Question 34 of 50

35. Which of the following is used by both Tunnel and Transport mode for encapsulation?

IPsec

VPN

RSA

AES

Question 35 of 50

36. Which of the following is used by network devices as a means for centralized authentication?

TACACS+

SSH

SSL

FTP

Question 36 of 50

37. Which of the following utilities uses SSH as transport protocol and uses TCP port 22?

ssl

scp

nslookup

IPsec

Question 37 of 50

38. Which of the following provides the below output?

ulimit

getfacl

chage

ulimit

ulimit -a

Question 38 of 50

39. Which security technique provides a guarantee of data integrity?

Hashing

Encryption

Authentication

AAA

Question 39 of 50

40. Which of the following commands would prevent the firewall from being started by other applications?

systemctl stop firewalld

systemctl mask firewalld

systemctl disable firewalld

systemctl prevent firewalld

Question 40 of 50

41. Zones are used by firewalld to control traffic flow

True

False

Question 41 of 50

42. Match the term with its description

NAT	Uses a single IP to represent a private network Unselect Method to create a dual-homed network Unselect A markup language, used for data serialization Unselect Method of having one network layered on top of another network Unselect
YAML	Uses a single IP to represent a private network Unselect Method to create a dual-homed network Unselect A markup language, used for data serialization Unselect Method of having one network layered on top of another network Unselect
Bonding	Uses a single IP to represent a private network Unselect Method to create a dual-homed network Unselect A markup language, used for data serialization Unselect Method of having one network layered on top of another network Unselect
Overlay network	Uses a single IP to represent a private network Unselect Method to create a dual-homed network Unselect A markup language, used for data serialization Unselect Method of having one network layered on top of another network Unselect

Question 42 of 50

43. Which of the following statements are true about the commands 'mkswap' and 'fdisk'?

mkswap is used to format a swap partition

fdisk is used to create a partition but not format it

Both mkswap and fidisk commands can be used to format the partition

All of the above

Question 43 of 50

44. Which of the following statements are true about hypervisors?

Type 1 hypervisors have direct access to the system hardware

Hypervisors isolate the host and guest machine

A hosted hypervisor is sometimes called a Type 2

All of the above

Question 44 of 50

45. Which special character is used to escape characters such as a single quote in a bash script?

\" 1 1.00 /"

Question 45 of 50

46. Which of the following commands can be used to download the projects source code from the remote repository?

git push

git clone

git pull

git get

Question 46 of 50

47. Which control structure will process a task for a specified number of times?

if/then/else

for loop

loopback

case

Question 47 of 50

48. SMTP is typically used for communication between nodes in an agentless orchestration

True

False

Question 48 of 50

49. Which of the following are considered as looping structures?

while loop

until loop

for loop

All of the above

Question 49 of 50

50. Which command is used to add a variable to the current environment prior to running a bash script?

get

create

export

add

Question 50 of 50

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