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PRELIMINARY EXAMINATION [PC4]

Total questions: 90

Worksheet time: 44mins

Name
Class
Date
1.

Acronym for TLS ?

(a)  

2.

Acronym for TCP ?

(a)  

3.

Acronym for HTTP ?

(a)  

4.

Acronym for RTT ?

(a)  

5.

Acronym for GDPR?

(a)  

6.

What does FTP stand for?

a)

File Transfer Protocol

b)

Folder Transfer Protocol

c)

File Transmission Protocol

d)

Find That Pigeon

7.

What is the difference between HTTP and HTTPS

a)

HTTPS uses encryption

b)

HTTPS is only used in Wi-Fi networks

c)

HTTP is a theoretical model, HTTPS is the application

d)

HTTP has levels of data protection

8.

How does SMTP and POP3 differ?

a)

SMTP and POP3 operate in the same way

b)

SMTP transfers e-mails to clients from servers, POP3 does not

c)

POP3 transfers e-mails to clients from servers, SMTP does not

d)

SMTP is the old version of the newer POP3 Protocol

9.

What is the aim of a 'protocol'

a)

To take control of a network

b)

To outline how network communication can be encrypted

c)

To set out rules to allow data to be communicated effectively

d)

There is no consensus on what a Protocol is

10.

What is the aim of an IP address?

a)

To uniquely identify a point on a network to allow packets to be sent to the correct destination

b)

To uniquely identify every device, so that communication between devices can be achieved

c)

To generally identify an end-point in a network to support communication and packet routing

d)

To identify a sub-set of end points, devices or network components during any given communication

11.

What is a web browser?

a)

a program that can display a web page

b)

a program used to view html documents

c)

it enables user to access the resources of internet

d)

all of the mentioned

12.

A web cookie is a small piece of data that is _______

a)

sent from a website and stored in user’s web browser while a user is browsing a website

b)

sent from user and stored in the server while a user is browsing a website

c)

sent from root server to all servers

d)

sent from the root server to other root servers

13.

The __________ method when used in the method field, leaves entity body empty.

a)

POST

b)

SEND

c)

GET

d)

PUT

14.

The domain name system is maintained by _______

a)

distributed database system

b)

a single server

c)

a single computer

d)

none of the mentioned

15.

What is layer 7 of the OSI model?

a)

Application

b)

Presentation

c)

Session

d)

Transport

16.

Firewalls can provide services to all 7 layers of the OSI model.

a)

True

b)

False

17.

The application layer provides API's that allow an application to communicate via the network.

a)

True

b)

False

18.

Why is the application layer important?

a)

The application layer provides transport services to the network.

b)

The application layer provides the MAC address.

c)

The application layer provides the application an interface to the network.

d)

The application layer is not needed.

19.

What is the difference between HTTP and HTTPS

a)

HTTPS uses encryption

b)

HTTPS is only used in Wi-Fi networks

c)

HTTP is a theoretical model, HTTPS is the application

d)

HTTP has levels of data protection

20.

which of these statements describe the role of SSH?

a)

To provide a secure channel for other transmissions

b)

Encrypt data for transmission across a network

c)

mainly used to allow secure remote logins

d)

implements anti-virus software on a network

21.

The application layer provides API's that allow an application to communicate via the network.

a)

True

b)

False

22.
  1. FTP uses the services of ________.
a)

IP

b)

TCP

c)

PPP

d)

UDP

23.

Which part of the architecture sends the initial HTTP request?

a)

Client

b)

Server

c)

Database

d)

HTML

24.

Which part of the architecture sends a POST request?

a)

Client

b)

Server

c)

Database

d)

Internet

25.
The part of the internet that users can access using web browsers such as Google Chrome is called the?
a)
World Wide Web
b)
The Intranet
c)
HTTP
d)
The Deep Web
26.
Which of the following is an internet protocol?
a)
HTTP
b)
HTML
c)
CSS
d)
UTP
27.
What does ISP stand for?
a)
Internet Service Provider
b)
Internet Switch Protocol
c)
Internet Service Protocol
d)
Internet Switch Provider
28.

The conversation between your computer and a server when requesting a website is mainly made up of _________ requests....

a)

"Ask"

b)

"Help"

c)

"Get"

d)

"Ack"

29.

What do websites use to remember who you are?

a)

biscuits

b)

cookies

c)

crackers

d)

cupcakes

30.

When a website wants to communicate with your web browser securely, it first sends a............

a)

A baloney sandwich

b)

A secure packet

c)

An encryption key

d)

Digital Certificate

31.
The largest WAN is the internet.
a)
True
b)
False
32.
A computer network require both hardware and software.
a)
True
b)
False
33.
Even large networks have only one server.
a)
True
b)
False
34.
An extranet is designed for the exclusive use within an organization.
a)
True
b)
False
35.
A gateway connects networks using different communications.
a)
True
b)
False
36.
A server provides a service to one or may clients to share files, folder or printers.
a)
True
b)
False
37.
A LAN or (local area network) connects computers across the world.
a)
True
b)
False
38.
A router is a device that performs the same tasks as a hub.
a)
True
b)
False
39.
A switch is a device that joins all the devices of a network together.
a)
True
b)
False
40.
A T-1 line is a type of fiber optic telephone line that can transmit voice and data without connection issues.
a)
True
b)
False
41.
A modem enable a computer to transmit data over telephone line.
a)
True
b)
False
42.
Every NIC ( network interface card) has a MAC and IP address.
a)
True
b)
False
43.
The MAC (media access control) is assigned by the manufacturer of the computer.
a)
True
b)
False
44.
Protocols are rules that the computer uses to communicate.
a)
True
b)
Fale
45.
A benefit of a network if that you are able to conduct online training and collaborate with your peers online at any given time.
a)
True
b)
False
46.

Which logical address is used for delivery of data to a remote network?

a)

destination MAC address

b)

destination IP address

c)

destination port number

d)

source MAC address

47.

What type of data delivery uses data link layer addresses?

a)

delivery to a remote network

b)

delivery to local and remote networks

c)

delivery to local networks

d)

delivery to a Wide Area Network

48.

What layer of the TCP/IP protocol model determines the best path through the network?

a)

application

b)

transport

c)

internet

d)

network access

49.

What is the purpose of the default gateway address configured on a host?

a)

To allow traffic that is destined for another network to be forwarded to the router for network determination and delivery.

b)

To forward traffic within the same network.

c)

To broadcast messages out to other hosts on the same network.

d)

To connect to the DHCP server.

50.

What is the purpose of protocols in data communications?

a)

specifying the bandwidth of the channel or medium for each type of communication

b)

specifying the device operating systems that will support the communication

c)

providing the rules required for a specific type of communication to occur

d)

dictating the content of the message sent during communication

51.

Which message delivery type is used when all devices need to receive the same message?

a)

static

b)

unicast

c)

multicast

d)

broadcast

52.

What is the term that is used to describe the particular type of information provided at each layer of a networking model?

a)

frame

b)

packet

c)

protocol data unit (PDU)

d)

segment

53.

What type of message is sent to a specific group of hosts?

a)

unicast

b)

multicast

c)

broadcast

d)

static

54.

Which layer of the OSI and TCP/IP models defines services to segment and reassemble data for individual communications between end devices?

a)

application

b)

network

c)

transport

d)

Data Link

55.

At which layer of the OSI model would a physical address be encapsulated?

a)

physical layer

b)

data link layer

c)

network layer

d)

transport layer

56.

What network communication process determines when a host should send messages?

a)

Time to live (ttl)

b)

Flow control

c)

Access method

d)

Response timeout

57.

Which PDU format is used when bits are received from the network medium by the NIC of a host?

a)

File

b)

Packet

c)

Frame

d)

Segment

58.

Which PDU is processed at the transport layer of the TCP/IP model?

a)

Packet

b)

Bits

c)

Segment

d)

Frame

59.

What technique is used with UTP cable to help protect against signal interference from crosstalk?

a)

Twisting the wires together into pairs.

b)

Terminating the cable with special grounded connectors.

c)

Encasing the cables within a flexible plastic sheath.

d)

Wrapping a foil shield around the wire pairs.

60.

Which statement describes crosstalk?

a)

The distortion of the network signal from fluorescent lighting.

b)

The distortion of the transmitted messages from signals carried in adjacent wires.

c)

The loss of wireless signal over excessive distance from the access point.

d)

The weakening of the network signal over long cable lengths.

61.

Which statement correctly describes frame encoding?

a)

It generates the electrical, optical, or wireless signals that represent the binary numbers of the frame.

b)

It uses the characteristic of one wave to modify another wave.

c)

It transmits data signals along with a clock signal which occurs at evenly spaced time durations.

d)

It converts bits into a predefined code in order to provide a predictable pattern to help distinguish data bits from control bits.

62.

Which statement describes throughput?

a)

The measure of the bits transferred across the media over a given period of time.

b)

The measure of the usable data transferred across the media.

c)

The theoretical capacity of a particular medium to carry data.

d)

The total amount of time it takes to get from one device to another.

63.

What is the purpose of the OSI physical layer?

a)

Controlling access to media.

b)

Transmitting bits across the local media.

c)

Exchanging frames between nodes over physical network media.

d)

Performing error detection on received frames.

64.

Which statement describes attenuation?

a)

The loss of wireless signal over excessive distance from the access point.

b)

The distortion of the network signal from fluorescent lighting.

c)

The weakening of the network signal over long cable lengths.

d)

The distortion of the transmitted messages from signals carried in adjacent wires.

65.

Which statement describes bandwidth?

a)

The speed at which bits travel on the network.

b)

The theoretical capacity of a medium to carry data.

c)

The amount of data that can flow from across the internet in a given amount of time.

d)

The measure of usable data transferred over a given period of time.

66.

What technique is used with UTP cable to help protect against signal interference from crosstalk?

a)

Wrapping a foil shield around the wire pairs.

b)

Encasing the cables within a flexible metallic sheath.

c)

Twisting the wires together into pairs.

d)

Terminating the cable with special designed grounded connectors.

67.

Which statement correctly describes signaling?

a)

It uses the characteristic of one wave to modify another wave.

b)

It converts bits into a predefined code in order to provide a predictable pattern to help distinguish data bits from control bits.

c)

It transmits data signals along with a clock signal which occurs at evenly spaced time durations.

d)

It converts the frame binary numbers into electrical, optical, or wireless signals.

68.

Which statement correctly describes network latency?

a)

The measure of the bits transferred across the media over a given period of time.

b)

The measure of the usable data transferred across the media.

c)

The capacity of a particular medium to carry data.

d)

The total amount of time it takes to get from one device to another.

69.

The physical layer of the receiving device passes bits up to which higher level layer?

a)

application

b)

presentation

c)

network

d)

data link

70.

What PDU is received by the physical layer for encoding and transmission?

a)

Frame

b)

Segment

c)

Packet

d)

Data

71.

Which media uses microwave signals to represent bits?

a)

Copper

b)

Wireless

c)

Fiber-optic

d)

Point-to-Point

72.

Which of the following is the widely used medium for networking due to relatively low cost, ease of use, and fast networking speeds?

a)

Unshielded Twisted-Pair (UTP)

b)

Fiber-optic

c)

Coaxial Cable

d)

Wireless

73.
Which are the two twisted pair cables types available? 
a)
UDP and FTP
b)
STP and UDP    
UTP and FTP
STP and UTP 
c)
UTP and FTP  
d)
NONE OF THE ABOVE 
74.
What type of connector do twisted pair cables on computer networks use? 
a)
RJ-11
b)
RJ-30
c)
RJ-45
d)
NONE OF THE ABOVE
75.
3. Ethernet Twisted pair cable has how many conductors? 
a)
6 CONDUCTORS
b)
8 conductors
c)
10 conductors
d)
12 conductors 
76.

5. Regarding unshielded twisted pair cables we CANNOT state:

a)

They are classified in categories, from 1 to 7.

b)

They have interference

c)

They cannot be used on Gigabit Ethernet networks.

d)

They have no interference

77.
What are data transfer speeds measure in?
a)
Bytes
b)
Bits
c)
Frames
d)
Relays
78.
Which of the following cable standards is good for 10 Mb/s, 100 Mb/s, and 1,000 Mb/s transfer speeds?
a)
Cat-5
b)
Cat-6
c)
Cat-7
d)
All the above
79.
Which term refers to a tube or channel through which network cable can be run to protect and organize it?
a)
Plenum
b)
Console
c)
Conduit
d)
Duckwork
80.
This term refers to a port setting which allows an interface to send and receive data at the same time.
a)
Half Duplex
b)
Full Duplex
c)
Full Monty
d)
Full Override
81.
What kind of cable is described as a central conductor wire, surrounded by insulating materials, placed inside a braided metal shield? 
a)
Unshielded twisted pair
b)
coaxial
c)
shielded twisted pair
d)
fiber-optic
82.
What is the most common use of coaxial cable in networking today?
a)
connecting computers in a small network
b)
connecting two computers in a point-to-point connection
c)
connecting a cable modem to an Internet Service Provider (ISP)
d)
in a multipoint connection 
83.
What distance can a signal travel on a fiber-optic cable? 
a)
500 meters
b)
1 kilometer
c)
1000 meters
d)
tens of kilometers
84.
What type of fiber-optic cable uses lasers to send signals? 
a)
single-mode
b)
multimode
c)
CAT6
d)
STP
85.
Which of the following cable types does NOT use copper wires? 
a)
coax
b)
STP
c)
UTP
d)
fiber-optic
86.

The UTP CAT45 plus RJ45 on its both ends is also known as

a)

USB cable

b)

VGA cable

c)

HDMI cable

d)

LAN cable

87.

Which of the following is the correct color arrangement of the Straight Through cable? (568 B standard)?

a)

Stripe Orange-Solid Orange; Stripe Green-Solid Blue; Stripe Blue-Solid Green; Stripe Brown-Solid Brown

b)

Stripe Green-Solid Green; Stripe Blue-Solid Blue; Stripe Brown-Solid Brown; Stripe Orange-Solid Orange

c)

Stripe Brown-Solid Brown; Stripe Green-Solid Green; Stripe Blue-Solid Blue; Stripe Orange-Solid Orange

d)

Stripe Blue-Solid Blue; Stripe Orange-Solid Orange; Stripe Green-Solid Green; Stripe Brown-Solid Brown

88.

What is the use of a straight through cable in networking? It connects a computer to the following devices EXCEPT for….

a)

Router

b)

Port

c)

Hub

d)

Switch

89.

How many pins does a RJ45 has?

a)

5

b)

6

c)

7

d)

8

90.

How many ways can you create a straight through cable base on the wiring standards?

a)

1

b)

2

c)

3

d)

4

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