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Networking Midterms

Total questions: 85

Worksheet time: 56mins

Name
Class
Date
1.
Question 1: What is the purpose of subnetting a network?
a)
a) To increase network security
b)
b) To simplify network management
c)
c) To improve network performance
d)
d) All of the above
2.
Which of the following is the correct subnet mask for the IP address 192.168.5.0/24?
a)
a) 255.255.255.0
b)
b) 255.255.0.0
c)
c) 255.0.0.0
d)
d) 255.255.255.255
3.
If you borrow 3 bits from the host portion of an IP address, how many subnets can you create?
a)
a) 2
b)
b) 4
c)
c) 6
d)
d) 8
4.
In the subnetting example given, what is the network ID for the subnet with the network address 192.168.5.64?
a)
a) 192.168.5.0
b)
b) 192.168.5.32
c)
c) 192.168.5.64
d)
d) 192.168.5.128
5.
How many usable host addresses are available in each subnet when 3 bits are borrowed for subnetting?
a)
a) 30
b)
b) 62
c)
c) 126
d)
d) 254
6.
What is the CIDR notation for the subnet with a subnet mask of 255.255.248.0?
a)
a) /21
b)
b) /22
c)
c) /23
d)
d) /24
7.
Which subnetting method allows you to create subnets of different sizes and reduce IP address waste?
a)
a) Fixed Length Subnet Mask (FLSM)
b)
b) Variable Length Subnet Mask (VLSM)
c)
c) Classless Inter-Domain Routing (CIDR)
d)
d) Supernetting
8.
What is the ANDing result of the IP address 172.16.77.54/21 with its subnet mask?
a)
a) 172.16.64.0
b)
b) 172.16.72.0
c)
c) 172.16.80.0
d)
d) 172.16.88.0
9.
Which process involves combining several subnets to reduce the number of entries in a routing table?
a)
a) Subnetting
b)
b) Supernetting
c)
c) VLSM
d)
d) CIDR
10.
What is the purpose of a screened subnet in network security?
a)
a) To increase network performance
b)
b) To simplify network management
c)
c) To protect publicly accessible resources
d)
d) To separate departments within a network
11.

The word malware stands for

___________ software.

Pick the missing word

a)

malfunctioning

b)

malformed

c)

malignant

d)

malicious

12.

How can a virus infect your computer?

a)

Through security loopholes

b)

Suspicious web links

c)

Disguised as legitimate software

d)

Email attachments

13.

How can a worm infect your computer?

a)

Through security loopholes

b)

Suspicious web links

c)

Disguised as legitimate software

d)

Email attachments

14.

How can a Trojan infect your computer?

a)

Through security loopholes

b)

Suspicious web links

c)

Disguised as legitimate software

d)

Email attachments

15.

Which types of malware can self replicate

a)

Trojan

b)

Virus

c)

Spyware

d)

Adware

e)

Worm

16.

Malware is a generic term for software that :

a)

replicates itself and spread to other computers

b)

hides on a computers and gathers information to pass on.

c)

is designed to cause harm to the system it infects.

d)

encrypts data on the system

17.

What is ransomware?

a)

Malware that steals your personal information

b)

Malware that steals your money

c)

Someone steals your computer and returns it when you pay them money

d)

Locks your computer till you pay money

18.

What information can spyware gather

a)

usernames

b)

passwords

c)

details about your internet usage

d)

bank details

e)

data from your computer

19.

What type of malware is used to collect your browsing habits, keystrokes, usernames or passwords.

a)

Trojan

b)

Spyware

c)

Virus

d)

Adware

e)

Ransomware

20.
Malware is made to stop your device from running properly and sometimes to steal your information.
a)
True
b)
False
21.
What is a virus?
a)
blocking access until money is paid
b)
A piece of code that can copy itself and attack a computer
c)
Sends information covertly 
d)
when someone steals your computer
22.
What is the most common way people's computers get infected by a virus?
a)
Receive a call
b)
Install a new hardware
c)
Download email attachments
d)
None of these
23.
Why is a trojan horse sneaky?
a)
It is very inviting
b)
It creeps into your computer
c)
It looks legitimate but really it isn't
d)
Because of the romans
24.
What is a worm?
a)
A virus that replicates itself through computer networks
b)
blocking access until money is paid
c)
A program that attacks your computer while completing a normal task
d)
An animal that lives when you cut it in half
25.
How can you protect yourself from malware?
a)
Don't have a computer
b)
Use a trusted anti-virus software
c)
Download any anti-virus software
d)
Just send your details to the attacker and they will leave you alone
26.

This type of network is an actual layout of the computer cables and other network devices

a)

Logical topology

b)

Physical topology

c)

Hybrid Topology

d)

Tree Topology

27.

This type of topology gives insights about network’s physical design

a)

Logical topology

b)

Physical topology

c)

P2P Topology

d)

Ring Topology

28.

In a ring network, every device has exactly two neighboring devices for communication purpose

a)

Ring Topology

b)

Star Topology

c)

Mesh Topology

d)

Bus Topology

29.

________ uses a single cable which connects all the included nodes. The main cable acts as a spine for the entire network.

a)

Tree Topology

b)

Point to Point (P2P)

c)

Bus Topology

d)

Star Topology

30.

________ have a root node, and all other nodes are connected which form a hierarchy.

a)

Tree Topology

b)

Mesh Topology

c)

Star Topology

d)

Ring Topology

31.

The _____ part of IP address identifies the physical network to which the

computer is attached.

a)

Suffix

b)

Class A

c)

Class C

d)

Prefix

32.

Is a type of CAT5 with RJ 45

connectors at each end, and each has the same pin out. It is

a)

Crossover cable

b)

Penetrating cable

c)

Straight

through cable

d)

Coaxial cable

33.

Is a network cable used for high speed wired network connections

between two devices

a)

Internet Cable

b)

Ethernet Cable

c)

Straight Through Cable

d)

Coaxial Cable

34.

Is a type of cabling in with pairs of wires are twisted together to stop

electromagnetic interference (EMI) from other wire pairs.

a)

Internet cabling

b)

Fiber

optic cabling

c)

Coaxial cabling

d)

Twisted

Pair Cabling

35.

Has the ability to transmit up to 40 Gb at 50 meters and 100 Gb at 15 meters

a)

Cat7

b)

Cat8

c)

Cat6

d)

Cat5

36.

Ethernet cable supports bandwidth frequencies of up to 500 MHz.

a)

Cat5

b)

Cat3

c)

Cat6a

d)

Cat7

37.

These types of cables consist of

an inner copper wire cover with insulation and another shielding

a)

Coaxial cabling

b)

Twisted

pair cabling

c)

Ethernet cabling

d)

Fiber optic cabling

38.

You can see in the architecture in such a manner that the resulting network does not exhibit one of the standard topologies

a)

Tree Topology

b)

Bus topology

c)

Hybrid Topology

d)

Star Topology

39.

In this topology, every nodes or device are directly connected with each other.

a)

Partially Connected Mesh Topology

b)

Full Mesh Topology

c)

Mesh Topology

d)

Star Topology

40.

All the computers connect with the help of a hub

a)

Ring Topology

b)

Bus Topology

c)

Star Topology

d)

Point to Point (P2P)

41.

It finds the least-cost path between source and destination nodes by using global knowledge about the network

a)

Distributed algorithm 

b)

Centralized algorithm 

c)

Isolated algorithm 

d)

Flooding

42.

When a data packet arrives at a router, it is sent to all the outgoing links except the one it has arrived on

a)

Isolated algorithm 

b)

Distributed algorithm 

c)

Random walks 

d)

Flooding

43.

Makes routing decisions dynamically depending on the network conditions.

a)

Adaptive Routing Algorithms

b)

Centralized Algorithm 

c)

Non – Adaptive Routing Algorithms

d)

Distributed algorithm 

44.

This is a probabilistic algorithm where a data packet is sent by the router to any one of its neighbours randomly.

a)

Isolated algorithm 

b)

Random walks

c)

Centralized algorithm 

d)

Flooding

45.

Has a unique network design in which each computer on the network connects to every other.

a)

Partial Mesh Topology

b)

Full Mesh Topology

c)

Mesh Topology

d)

Star Topology

46.
What is the benefit of the Networking?
a)
File Sharing
b)
Easier access to Resources
c)
Easier Backups
d)
All of the Above
47.

A computer network is a system of:

a)

two or more computing devices connected to one another

b)

Data transfer and information storage

c)

Sharing devices like scanners

d)

A whole lot of individual machines working on their own

48.

Which one of the following terms refer to the most popular LAN technology

a)

Ethernet

b)

WAN

c)

Internet

d)

Intranet

49.

Mostly consist of a center glass, and different layers of protective materials surround it

a)

Coaxial cabling

b)

Twisted

pair cabling

c)

An Ethernet cable is a network cable used for high

d)

Fiber optic cables

50.

Is the easiest of all the network topologies. In this method, the network consists of a direct link between two computers.

a)

Point to Point (P2P)

b)

Ring Topology

c)

Star Topology

d)

Mesh Topology

51.

This is a decentralized algorithm that computes the least-cost path between source and destination iteratively in a distributed manner.

a)

Distributed algorithm 

b)

Isolated algorithm 

c)

Centralized algorithm 

d)

Adaptive Routing Algorithm

52.

The _____ part identifies the individual computer on the network. The suffix is

also called the host address.

a)

Suffix

b)

Prefix

c)

IP Class A

d)

IP Class B

53.

This type of network is an actual layout of the computer cables and other network devices

a)

Logical topology

b)

Tree Topology

c)

Physical topology

d)

Hybrid Topology

54.

Is a type of IP address that is used for the small network

a)

Class D

b)

Class E

c)

Class A

d)

Class C

55.

These cables are slower compared to modern day hardware requirements.

a)

Cat5

b)

Cat3

c)

Cat6

d)

Cat4

56.

Cat5 is faster compared to Cat6

a)

True

b)

False

57.

When connecting computer and router you will use crossover cable

a)

True

b)

False

58.

When connecting computer to computer you will use straight through cable

a)

True

b)

False

59.

When connecting router to router you will use crossover cable

a)

True

b)

False

60.

When connecting modem and computer you will use crossover cable

a)

True

b)

False

61.

In flooding, when a data packet arrives at a router, it is sent to all the outgoing links except the one it has arrived on

a)

True

b)

False

62.

In Full Mesh Topology, every nodes or device are indirectly connected with each other.

a)

True

b)

False

63.

In P2P the network consists of a direct link between two computers

a)

True

b)

False

64.

Hybrid topology combines two or more topologies

a)

True

b)

False

65.

In star topology all the computers connect with the help of a hub.

a)

True

b)

False

66.

Which of the following is the most secure wireless security standard?

a)

WEP

b)

WPA2

c)

WPA

d)

WPS

67.

A wireless network's "friendly name" is its _______.

a)

BSID

b)

Network ID

c)

SSID

d)

BSS

68.

Consider a network 172.16.0.0, subnet mask 255.255.0.0. Which of these is not a valid host?

a)

172.16.208.255

b)

172.16.1.0

c)

172.16.255.0

d)

172.16.255.255

69.

Consider IP 192.168.100.24, subnet mask 255.255.255.0. What is the network address?

a)

192.168.100.0

b)

192.168.100.1

c)

192.168.100.255

d)

192.168.0.0

70.

All computers have a unique IP address.

a)

True

b)

False

71.

All computers have exactly one unique MAC address.

a)

True

b)

False

72.

The protocol ________ is fast and unreliable.

a)

TCP

b)

NTP

c)

ARP

d)

UDP

73.

The three parts of the TCP 3-way handshake are...

a)

ACK, FIN ACK, ACK

b)

GET, GET ACK, ACK

c)

ACK, SYN, ACK

d)

SYN, SYN ACK, ACK

74.

Which of the following devices does not do any firewalling?

a)

Router

b)

Switch

c)

Desktop/Laptop

75.

Which of the layers of the TCP/IP stack do Switches operate at?

a)

Application

b)

Link

c)

Internet

d)

Transport

76.

Which of the layers of the TCP/IP stack do Routers operate at?

a)

Transport

b)

Link

c)

Internet

d)

Transport

77.

Which of the layers of the TCP/IP stack do Web Servers operate at?

a)

Application

b)

Link

c)

Internet

d)

Transport

78.

Browsing the web uses the ________ protocol at the Transport layer.

a)

UDP

b)

TCP

c)

HTML

d)

HTTP

79.

Streaming videos from Youtube uses the ________ protocol at the Transport layer.

a)

UDP

b)

TCP

c)

HTML

d)

HTTP

80.

How many host bits are in a network with subnet mask 255.255.248.0?

a)

10

b)

11

c)

12

d)

13

81.

What is 11010000 in decimal?

a)

226

b)

233

c)

208

d)

206

82.

Whenever a switch receives a packet, it rewrites the ______ address before sending it out.

a)

Source MAC

b)

Destination MAC

c)

Source IP

d)

Destination IP

83.

An IPv4 has four ______.

a)

Bits

b)

Bytes

c)

Nibbles

84.

The first half of a MAC address describes...

a)

Nothing; the whole address is a unique ID

b)

The network that a switch is connected to

c)

The company that manufactured the network adapter

85.

I can't load tumblr.com! What tool should I use make sure I can reach the server?

a)

ping

b)

wireshark

c)

packet tracer

d)

nslookup

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