STUDENT WORK BOOK FOR DATA COMMUNICATION AND NETWORKING

CHAPTER 2 : INTRODUCTION TO NETWORKING

SECTION A
Question 1

a. List THREE (3) types network topology for work station.
b. Explain TWO (2) rules of communication.
c. Twisted-pair cable used in communication is referred as unshielded twisted-pair (UTP). Sketch the straight-

through and cross-over UTP cable complying with TIA/EIA wiring standard of network cabling preparation.

Question 2
a. Name THREE (3) common elements required in a Client Server network.
b. Describe Local Area Network (LAN) and Wide Area Network (WAN) of network classification with a suitable
diagram.
c. Illustrate the client/server network and carry out THREE (3) characteristics of client/server network.

Question 3
a. List THREE (3) network classification.
b. Differentiate between Local Area Network (LAN) and Metropolitan Area Network (MAN) of network
classification.
c. Illustrate simple connection devices to show the use of a straight-through cable and cross-over cable.

Question 4
a. List THREE (3) basic component of computer network.
b. Explain briefly the functions of Network Interface Card (NIC), Topology, Transmission Medium, Server and
Client in common element required for Client/Server Network.
c. Illustrate the usage of peer-to-peer network and client/server network by suitable diagram.

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Question 5
a. Define computer network.
b. Describe fundamental types of network for peer-to-peer network and client/server network.
c. With illustration of a diagram, differentiate the following network classification:
Local Area Network, Metropolitan Area Network and Wide Area Network.

Question 6
Data Communications between remote parties can be achieved through a process called networking. Networking
involves the connection of computers, media and networking devices. There are two types of fundamental network,
being used by all organization in the world which is peer-to-peer network and client or server network.

a. Describe computer network.
b. From the statement above, explain any ONE (1) of the types of fundamental network.
c. Sketch THREE (3) network classifications.

SECTION B
Local Area Network (LAN), Metropolitan Area Network (MAN), Wide Area Network (WAN) and Global Area Network
(GAN) are the classification of network. Summarize the characteristics and advantages for Local Area Network
(LAN). Twisted pair cable is a types of cable use in LAN networking. TIA/EIA 568A and TIA/EIA 568B are the two
colour codes used for wiring twisted pair cable with the RJ45 connector under Telecommunications Industry
Association (TIA)/Electronic Industries Alliance (EIA) wiring standard. By using a suitable diagram, verify the cable
colour arrangement for both. Recommend the application for the connection of straight-through and cross-over
cable.

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CHAPTER 3 : THE OPEN SYSTEMS INTERCONNECTION
(OSI MODEL & NETWORK PROTOCOL)

SECTION A
Question 1

a. Explain TWO (2) types network protocol.

b. Open Systems Interconnection (OSI) and Transmission Control Protocol/Internet Protocol (TCP/IP) are two
major network models to describe the process of transferring and receiving data from two connected
system. Show the relation between OSI and TCP/IP protocol layers.

c. A network with 4 computers is connected using a topology bus. The physical address in a network is

4 1 DATA T2 By using a diagram, illustrate the address flow.

Question 2
a. Explain the function of physical layer in Open Systems Interconnection (OSI) Models.
b. Sketch the format of datagram packet for Internet Protocol Version 4 (IPV4).
c. Kenneth’s boss wants him to connect 10 sets of computers which are located in the office. Show a set of
IP addresses which is suitable for this purpose and which network class should this be? Given IP address
192.168.x.x.

Question 3
a. Describe ONE (1) function for each of the following OSI layer:
i. Presentation
ii. Transport
iii. Data Link

b. Relate the TCP/IP protocol layer to OSI model layer.
c. Illustrate IPV6 header format.

Question 4
a. Identify TWO (2) function of a transport layer.
b. List THREE (3) differences between Net BIOS and Net BEUI.
c. Illustrate OSI and TCP/IP Model by using an appropriate diagram.

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Question 5
a. Explain briefly about Open System Interconnection (OSI) model
b. With an illustration of a diagram, identify the relation between of OSI model layer and TCP/IP protocol layer.
c. Sketch the format of datagram packet for Internet Protocol Version 4 (IPV4) showing the item of version,
total length, header checksum, sources address and destination address.

Question 6
a. Determine the purpose of Open Systems Interconnection (OSI) model in data communication and
networking.
b. Relate the Transfer Control Protocol/Internet Protocol (TCP/IP) protocol layer with Open System
Interconnection (OSI) model layer.
c. Relate the FOUR (4) level address of Transfer Control Protocol/Internet Protocol (TCP/IP) with Transfer
Control Protocol/Internet Protocol (TCP/IP) layer.

Question 7
There are two major network models that are used to describe the process of transferring and receiving data from
two connected systems. The models are the Open Systems Interconnection (OSI) Model and Transmission Control
Protocol/Internet Protocol (TCP/IP).

a. Based on the suitable diagram, identify the seven Layer Open System Interconnection (OSI) Model.
b. Referring to the Figure A-3b, interpret the function of the following Transmission Control Protocol TCP/IP

Layer:

Application Layer
Transport Layer
Internet Layer
Network Access

Layer

Figure A-3b
c. Relate between TCP/IP protocol layers in Figure A-3b to OSI model laye

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CHAPTER 4 : LOCAL AREA NETWORK

Question 1
Media Access Control (MAC) is used to minimize collisions by determining turn off the station to use
the transmission medium or the channel. Three methods in MAC are Carrier Sense Multiple
Access/Collision Detection (CSMA/CD), Carrier Sense Multiple Access/Collision Avoidance
(CSMA/CD) and Token Passing. From these three methods, interpret one of the MAC techniques with
the aid of diagram. Illustrate the MAC frame format for standard Ethernet (IEEE 802.3) and interpret the
description of each frame.

Question 2
There are two types of services in wireless Local Area Network (WLAN). With the aid of diagram,
interpret the TWO (2) services.

Question 3
A Wireless Local Area Network (WLAN) uses radio waves as its carrier instead of using UTP cable. List
FOUR (4) advantages of WLAN compared to cable. And with the aid of a suitable diagram, briefly
demonstrate how Extended Service Set (ESS) in WLAN works in the middle of different coverage area
without disconnecting the signal.

Question 4
Media Access Control (MAC) is the mechanism that enables multiple computers to use the same
network medium without conflicting in Local Area Network (LAN). Illustrate THREE (3) phases of MAC
process. Token Passing is one of MAC types. By using the configuration diagram, interpret how data
can be transmitted in a network. Describe TWO (2) advantages and disadvantages of Token Passing.

Question 5

Media Access Control (MAC) is used to minimize collisions by determining turn off the station to use
the transmission medium or the channel. Three methods in MAC are Carrier Sense Multiple
Access/Collision Detection (CSMA/CD), Carrier Sense Multiple Access/Collision Avoidance
(CSMA/CD) and Token Passing. With the help of diagram interpret THREE (3) of the MAC techniques
and illustrate the MAC frame format for Standard Ethernet (IEEE 802.3) of each frame.

Question 6

In addition to the wired network, various technologies exist which allow the transmission of information
between hosts without using cables. These are known as wireless technologies. There are two types
of services in wireless Local Area Network (LAN). With the aid of diagram, interpret the TWO (2)
services.

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Question 7
A Media Access Control (MAC) is a sublayer in the data-link layer that owns multiple access protocol
to coordinate access to the link. Interpret THREE (3) types of MAC.
Question 8

a. IEEE 802 is networking standard developed by the Institute of Electrical and Electronic
Engineers. IEEE 802 is subdivided into 22 parts from 802.1-802.22 that cover to Data Link
Layer and Physical Layer of ISO/OSI model. Elaborate two sub-layer in Data Link Layer.

b. Sketch the configuration of Collision Sense Multiple Access /Collision Avoidance (CSMA/CA),
and Token Passing in Media Access Control (MAC) Protocol.

c. Illustrate the services Basic Service Set (BSS) and an Extended Service Set (ESS) of wireless
LAN.

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CHAPTER 5 : PUBLIC DATA NETWORK

Question 1
List the types of common switching methods.

Question 2
Value Added Network (VAN) in Public Data Network by giving ONE (1) example.

Question 3
a. Switching is a component of a network logical topology that determine how connections
between nodes. List THREE (3) types of switching.
b. In Multiprotocol Label Switching (MPLS), the first router that receives a packet adds one or
more to the layer 3 datagram. Then, the network layer 2 protocol header is added. The MLPS
label also called as a shim, because of their replacement between layer 3 and layer 2
information. Illustrate with label a MPLS shim within a frame.

Question 4

a. List THREE (3) common switching techniques used in Public Data Network.
b. With an aid of a diagram, explain with the use of circuit switching operation.

Question 5

a. Explain TWO (2) type of Public Data Network.

b. There are three types of common switching network such as packet switching network,

message switching network and circuit switching networks. Draw TWO (2) type of common

switching network.

c. Since 1970, packet switching has evolved substantially for digital data communications. There
are TWO (2) transmission method involve in packet switching such as Datagram and Virtual
Circuit. By using a diagram, show the data transmission in datagram.

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