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DCCN VIVA QUIZ

Total questions: 56

Worksheet time: 28mins

Name
Class
Date
1.

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

2.

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

3.

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

4.

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

5.

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

a)

Ethernet

b)

WAN

c)

Internet

d)

Intranet

6.

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

a)

Ethernet

b)

WAN

c)

Internet

d)

Intranet

7.

Which one of the following is a typical example of a web address?

a)

http:telko@info.uk

b)

alex@intellect.co.za

c)

http://www.eaglewood.co.za

d)

C:/computers.za

8.

Which one of the following is a typical example of a web address?

a)

http:telko@info.uk

b)

alex@intellect.co.za

c)

http://www.eaglewood.co.za

d)

C:/computers.za

9.
What type of network is this?
a)
Ring 
b)
Bus 
c)
Star
d)
Mesh
10.
In a star network
a)
Each device is connected to a switch or hub
b)
Each device connects to each other
c)
Each device is connected in a line
d)
Each device is connected to a terminal
11.
The internet is the worlds biggest
a)
LAN
b)
WAN
12.
What does LAN stand for?
a)
Local Art Network
b)
Localise Aerial Network
c)
Local Area Network
d)
Local Area News
13.
A router can
a)
Forward data packets
b)
Absorb signals
c)
Repeat signals
d)
absorb data packets
14.
What term describes the physical layout of a network?
a)
Topology
b)
topping
c)
topiology
d)
toppology
15.

A device that is used to connect a number of LANs is –

a)

Router

b)

Repeater

c)

Bridge

d)

All of these

16.

A device that is used to connect a number of LANs is –

a)

Router

b)

Repeater

c)

Bridge

d)

All of these

17.

If all devices are connected to a central hub, then topology is called

a)

Bus Topology

b)

Ring Topology

c)

Star Topology

d)

Tree Topology

18.

Which of these is an advantage of a Ring network?

a)

Expensive

b)

Reliable

c)

Fast

19.

Which of these is an advantage of a Star network?

a)

No extra hardware needed

b)

Reliable

c)

Cheap

20.

What type of network is this?

a)

Bus

b)

Ring

c)

Star

21.

Which of the following network diagrams represents star topology?

a)
b)
c)
d)
22.

what network topology is this

a)

star

b)

mesh

c)

bus

d)

tree

23.
An advantage of a mesh network topology is that there is no central node to fail - True or False?
a)
True
b)
False
24.
All computers have Network Interface Cards built in
a)
True
b)
False
25.

Transmission control protocol ___________ .

a)

is a connection-oriented protocol

b)

uses a three way handshake to establish a connection

c)

receives data from application as a single stream

d)

all of the mentioned

26.

Which one of the following is a version of UDP with congestion control?

a)

Data Congestion Control Protocol

b)

Steam Control Transmission Protocol

c)

Structured Stream Transport

d)

User Congestion Control Protocol

27.

An endpoint of an inter-process communication flow across a computer network is called __________.

a)

Socket

b)

Pipe

c)

Port

d)

Machine

28.

Which of the following tasks is not done by data link layer?

a)

Framing

b)

Error Control

c)

Flow Control

d)

Channel Coding

29.

The ____ translates internet domain and host names to IP address.

a)

routing information protocol

b)

domain name system

c)

network time protocol

d)

internet relay chat

30.

Application layer protocol defines:

a)

types of messages exchanged

b)

message format, syntax and semantics

c)

rules for when and how processes send and respond to messages

d)

all of the mentioned

31.

Protocol for Network virtual terminal is___________

a)

FTP

b)

HTTP

c)

Telnet

d)

SMTP

32.

Segmentation and reassembly is done at __________ layer

a)

Session

b)

Presentation

c)

Transport

d)

Data Link

33.

Framing is done at _________ layer

a)

Physical

b)

Transport

c)

Data Link

d)

None

34.

A _______ is the physical path over which a message travels.

a)

path

b)

medium

c)

protocol

d)

route

35.

A _________ set of rules that governs data communication.

a)

Protocols

b)

Standards

c)

Servers

d)

RFC's

36.

Bluetooth is an example of __________

a)

wide area network

b)

virtual private network

c)

local area network

d)

personal area network

37.

Network congestion occurs _________

a)

when connection between two nodes terminates

b)

in case of traffic overloading

c)

when a system terminates

d)

in case of transfer failure

38.

The packet of information at the application layer is called __________

a)

Packet

b)

Segment

c)

Message

d)

Frame

39.

The network layer is concerned with __________ of data.

a)

bytes

b)

packets

c)

bits

d)

frames

40.

ICMP is primarily used for __________

a)

routing

b)

forwarding

c)

addressing

d)

error and diagnostic functions

41.

The application layer of the OSI model is

a)

Four layer

b)

Five layer

c)

Seven layer

d)

Six layer

42.

The number of layers in ISO OSI reference model is __________

a)

4

b)

5

c)

6

d)

7

43.

Which layer provides the services to user?

a)

application layer

b)

session layer

c)

presentation layer

d)

physical layer

44.

Routers operate at which layer of the OSI model?

a)

physical

b)

transport

c)

network

d)

MAC sublayer of the data link layer

e)

session

45.

Bits are packaged into frames at which layer of the OSI model?

a)

data link

b)

transport

c)

physical

d)

presentation

e)

application

46.

Bits are packaged into frames at which layer of the OSI model?

a)

data link

b)

transport

c)

physical

d)

presentation

e)

application

47.

Which of the following operate at the presentation layer?

A . MIDI

B . FTP

C . SMTP

D . TFTP

E . JPEG

a)

A and B

b)

A, C, and E

c)

C and E

d)

A and E

e)

none of the above

48.

Which of the following are transport layer protocols?

a)

TCP and UDP

b)

IP

c)

FTAM

d)

IP and TFTP

e)

TFTP

49.

Which of the following are considered to be the upper layer protocols?

a)

presentation and session

b)

application and presentation

c)

application, presentation, and session

d)

application, presentation, session, and transport

e)

application

50.

Flow control takes place at which layer?

a)

physical

b)

transport

c)

network

d)

MAC sublayer of the data link layer

e)

session

51.

Which layer establishes, maintains, and terminates communications between applications located on different devices?

a)

application

b)

presentation

c)

session

d)

network

e)

data link

52.

What does OSI stand for?

a)

International Standards Organization

b)

Open Systems Interconnect

c)

Operating Standard Information

d)

Operating System Interconnection

e)

Open Systems Interface

53.

Repeaters and hubs operate at which layer?

a)

network

b)

data link

c)

transport

d)

physical

e)

session

54.

What does TCP stand for?

a)

Transfer Control Protocol

b)

Transmission Control Protocol

c)

Transfer Character Protocol

d)

Transmission Character Protocol

55.
HTTP stands for..
a)
.. Hyper Technology Transmission Piece 
b)
Hypertext Transfer Protocol
c)
Hypertext Talking Package 
d)
Hypertext Transfer Program 
56.
Which protocol would you use to transfer files?
a)
FTP
b)
SMTP
c)
POP3
d)
HTTP

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