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Last linux

Total questions: 51

Worksheet time: 36mins

Name
Class
Date
1.

What is the Port Numbers for Simple Mail Transfer Protocol?

a)

TCP 25

b)

TCP 20

c)

TCP 22

d)

TCP 23

2.

What is the Port Numbers for Hypertext Transfer Protocol?

a)

TCP 25

b)

TCP 80

c)

TCP 53 and UDP 53

d)

UDP 58

e)

TCP 25 and UDP 50

3.

What is the Port Numbers for Hypertext Transfer Protocol SECURE?

a)

TCP 443

b)

TCP 80

c)

TCP 53 and UDP 53

d)

UDP 58

e)

TCP 25 and UDP 50

4.

What is the Port Numbers for Post Office Protocol Version 3?

a)

TCP 443

b)

TCP 80

c)

TCP 53 and UDP 53

d)

TCP 110

e)

TCP 25 and UDP 50

5.

What is the Port Numbers for Remote Desktop Protocol?

a)

TCP 443

b)

TCP 143

c)

TCP 53 and UDP 53

d)

TCP 110

e)

TCP 3389

6.

What is the Port Numbers for Secure Shelll?

a)

TCP 20 and TCP 21

b)

TCP 20

c)

TCP 22

d)

TCP 23 and TCP 25

7.

What utility would you use to view current connections and active sessions and ports on a computer?

a)

nslookup

b)

netstat

c)

ping

d)

ipconfig

8.

Which one of these connectors would be used on a fiber link?

a)

RJ45

b)

LC

c)

BNC

d)

T568A

9.

What port number is associated with FTP?

a)

143

b)

3389

c)

443

d)

21

10.

A client's computer is connecting to a website. Which of the following commands will allow a technician to view the route/number of hops between the host and remote systems?

a)

nbtstat

b)

tracert

c)

nslookup

d)

netstat

11.

Which of the following ports is used when accessing a website with SSL encryption?

a)

22

b)

80

c)

110

d)

443

12.

RDP port #

a)

389

b)

3380

c)

3993

d)

3389

13.

Which of the following protocols is used to secure communications between sender and receiver?

a)

SIP

b)

SNMP

c)

SSL

d)

SMTP

14.

What is a SOHO network?

a)

Small Output & Home Office

b)

Several Offices & Hospital Office

c)

Secretary Office & Health Office

d)

Small Office or Home Office

15.

A Linux command-line utility used for displaying and modifying network interface configuration settings is called:

a)

ifconfig

b)

net config

c)

ipconfig

d)

networksetup

16.
A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it. Which access method should be chosen?
a)
AUX
b)
SSH
c)
Console
d)
Telnet
17.

Show all running processes (like Task Manager)

a)

proc

b)

show

c)

top

d)

process

18.

Turn off the computer

a)

quit

b)

shutdown

c)

shutdwn

d)

off

19.

Which of the following commands is NOT used for the management of files and directories?

a)

ping

b)

mkdir

c)

touch

d)

chmod

20.

All commands, file names, directory names, and device names in Linux are case sensitive?

a)
b)
21.

What is the core of a Linux Operating System?

a)

Kernel

b)

Shell

c)

Command

d)

GUI

22.

What command moves to the root directory?

a)

cd ~

b)

cd \

c)

cd /

d)

cd ..

23.

Which of the following commands allows you to move up one level in the Linux directory tree?

a)

cd -

b)

cd ..

c)

cd /

d)

cd .

24.

This type of network is used to transmit data between Europe and North America.

a)

WAN

b)

LAN

c)

WLAN

25.

This network is connected without cables.

a)

WAN

b)

WLAN

c)

LAN

26.

This type of network is more secure

a)

Internet

b)

Intranet

27.

This network device connects a LAN to the internet.

a)

Hub

b)

Switch

c)

Bridge

d)

Router

28.

An account that is not intended for logging in interactively but for launching daemons and other supporting tasks is known as.....

a)

daemon users

b)

stduser

c)

system account

d)

nologin

29.

What file contains a user's password, in hashed form, as well as the salt that was added to before hashing?

a)

/etc/passwd

b)

/etc/saltd

c)

/etc/sonic

d)

/etc/shadow

30.

What command can be used to see who is currently logged on as well as when they logged on and from where?

a)

who

b)

quser

c)

ps

d)

w

31.

What command removes a user account and removes their home directory?

a)

remuser -r

b)

deluser

c)

userdel -r

d)

acctrem -R

32.

What group on Linux systems is typically given access within the sudoers file to run commands with administrative privileges?

a)

admins

b)

wheel

c)

term

d)

tty

33.

When looking at the hashed string of a user's password, what does the very beginning, $6, represent?

a)

Password is 6 characters long

b)

No salt was added

c)

Uses the Sha-512 algorithm

d)

none of the above

34.

If I run the following command, what will it do?

usermod -L tator

a)

log out tator

b)

change tator to a local account

c)

lock out tator's account

d)

allow you to move his local home directory

35.

What range of UIDs are typically reserved for "regular" users of a Linux system?

a)

1,000+

b)

1-200

c)

201-999

d)

all of these are fair game

36.

In the following entry, what does the x represent?

tator:x:1007:1010:Tator M. Salad:/home/tator:/bin/bash

a)

Where the password used to be kept

b)

Tator's default group

c)

The last date tator's password was changed

d)

That tator's account is locked out

37.

Given the same output below, what is the /bin/bash representing?

tator:x:1007:1010:Tator M. Salad:/home/tator:/bin/bash

a)

That tator is not allowed to login interactively

b)

Tator's PATH environment variable

c)

Location of Tator's password file

d)

Tator's default shell

38.

How many run levels are there in Linux?

a)

3

b)

5

c)

6

d)

7

39.

What runlevel is single user mode?

a)

1

b)

2

c)

3

d)

5

40.

What runlevel is used for multi-user graphical desktop mode?

a)

1

b)

3

c)

5

d)

7

41.

What runlevel would be the default for a "headless" server with no GUI?

a)

1

b)

3

c)

5

d)

7

42.

What would the command "init 0" do?

a)

Reboot the machine

b)

Shut the machine down

c)

Start the GUI

d)

Nothing, rulevel 0 doesn't exist

43.

How many virtual consoles are accessible via TTYs?

a)

3

b)

6

c)

8

d)

10

44.

What is the default bootloader for modern RedHat based distributions?

a)

LILO

b)

bootcmd

c)

MBR

d)

grub

45.

What command can be used to display a linux machine'e host name?

a)

hostname

b)

uname -a

c)

cat /etc/hosts

d)

all the above

46.

What is the right order of boot sequence?

a)

Bios, MBR, GRUB, Kernel, INIT, Run Level

b)

Bios, MBR, Kernel, INIT, Run Level, GRUB

c)

Bios, Kernel, MBR, GRUB, INIT, Run Level

d)

Bios, MBR, Kernel, GRUB, INIT, Run Level

47.

Which of the following is Not a run level?

a)

0

b)

6

c)

7

d)

4

48.

mkdir does what?

a)

Deletes a directory

b)

Creates a directory

c)

Creates a file

d)

renames a file

49.

How do you save a file and exit?

a)

:wq

b)

:q!

c)

:w

d)

none of the above

50.

What command creates and empty file?

(a)  

51.

what is the Linux command segment used to append data to the "s.txt" file ?

a)

echo "Hey Ubuntu "

b)

echo "Hey Ubuntu " > s.txt

c)

ls >> s.txt

d)

echo "Hello " > s.txt

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