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Babu Madhav Institute of Information Technology
2012
Sub: Fundamentals of Computer Networks - 060010302
Unit-1 An Introduction
Short Question
1. Define the following terms :
a. Computer Network
b. Protocol
c. Broadcast
d. Topology
2. Give the full form of following:
a. ANSI
b. ICE
c. ITU
d. IEEE
e. ISO
3. List different category of Network.
4. For n devices in a network, what is the number of cable links required for a mesh, ring, bus and
star topology?
5. What is the difference between half-duplex and full-duplex transmission modes?
6. What are some of the factors that determine whether a communication system is LAN or WAN?
7. Identify five components of data communication system.
8. What are the advantages of a multipoint connection over point-to-point connection?
9. Why are standard needed?
10. Name the four network topologies, and cite an advantage of each type.
11. What are the three criteria necessary for an effective and efficient network?
12. Why are protocols needed?
13. What is OSI Model?
14. List Layers of OSI Model?
15. What is used of Physical Layer?
16. What is used of Data link Layer?
17. What is used of Network Layer?
18. What is used of Transport Layer?
19. What is used of Session Layer?
20. What is used of Presentation Layer?
21. What is used of Application Layer?
22. List five components of data communication system.
23. List application of Computer Network.
24. What is Bus topology?
25. What is Star topology?
26. What is Ring topology?
27. What is Tree topology?
28. What is Mesh topology?
29. When LAN is used?
30. When MAN is used?
31. When WAN is used?
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Babu Madhav Institute of Information Technology
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What is multimedia network?
Which are the factors that affect on physical topology?
Differentiate bus topology and ring topology.
Enlist responsibility of physical layer. [2]
Enlist the responsibility Application layer.[1]
Explain the layer in detail, which is responsible for routing of packet. [2]
Explain the layer, which is responsible for packet-to-packet delivery of source to destination. [2]
Explain physical address and logical address. [2]
Long Question
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Write note on component of data communication
Write advantages and uses of computer network.
Write application area of Computer Network.
How network is useful to a company?
Describe the advantages and uses of network for people.
Define Topology. Explain types of topology with its advantage and disadvantage.
Differentiate physical topology and logical topology.
Explain Star topology in detail with its advantage and disadvantage.
Explain physical Bus and logical Bus topology in detail.
Explain physical Ring and logical Ring topology in detail.
What is OSI model? Explain in brief each layer of OSI model.
What are the categories of computer network? Explain each in brief.
Write note on standard and standards organization.
OSI Model is layered architecture.” – Justify.
Which layer is responsible for Routing? Explain it with all its responsibility.
Write a note on presentation layer.
Explain OSI Model in detail.
Write a note on the layer, which is responsible for framing.
Explain physical layer of OSI Model.
Explain the layer, which is responsible for process-to-process delivery of packet.
At which layer Encryption & Decryption does, explain that layer in detail.
Explain application layer with all its responsibilities.
Multiple Choice Questions
1. For large networks, _______ topology is used.
a. Bus
b. Star
c. Ring
d. Mesh
2. In a ring topology computer is:
a. Connected with a single cable
b. Connected with a central hub
c. Connected with two computers
d. Connected with two or more computers
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2012
3. The following layer is used to determine signal type: analog or digital.
a. Physical layer
b. Data link layer
c. Network layer
d. Presentation layer
4. In following topology, if a computer’s network cable is broken, whole network goes down.
a. Ring
b. Mesh
c. Tree
d. Star
5. Following topology has direct connection between every pair of devices in the network.
a. Ring
b. Mesh
c. Tree
d. Star
6. The following networks consist of many connections between individual pairs of machine.
a. Broadcast network
b. Point to Point network
c. All of the above
d. None of the above.
7. The following is used to interconnect workstation distributed around office within a single
building or group of building.
a. LAN
b. MAN
c. WAN
d. None
8. ISO stands for
a. International Standard Organization
b. International Student Organization
c. Integrated Services Organization
9. ISO OSI model is used in
a. Standalone PC
b. Network environment
10. Network cable lies on _____ layer
a. Application
b. Network
c. Physical
11. ____ layer decides which physical pathway the data should take.
a. Application
b. Network
c. Physical
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2012
12. Layer is responsible for routing of packet
a. Application
b. Network
c. Transport
13. Which OSI layer defines the functions of logical network-wide addressing and routing?
a. Layer 1
b. Layer 2
c. Layer 3
d. Layer 4
e. Layer 5
f. Layer 6
g. Layer 7
14. Which OSI layer defines the standards for cabling and connectors?
a. Layer 1
b. Layer 2
c. Layer 3
d. Layer 4
e. Layer 5
f. Layer 6
g. Layer 7
15. Which of the following terms are not valid terms for the names of the seven OSI layers?
a. Application
b. Data link
c. Transmission
d. Presentation
e. Internet
f. Session
True FALSE
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In star topology all computers are connected to each other with individual cable.
Database server stores the data of network.
A server in network will use and provide network resources.
Server, peer and client are the role of network in computer.
In star topology all computers are connected with single backbone cable.
There is no centralized security in peer based network.
Internet is a network of network.
MAN is cover inside a town or city.
In broadcasting only one can send and more than one can receive.
Print server allow user to share fax services over a network.
Wide area network are connected across a distance of less than 30 miles.
Networks cannot extend beyond the boundaries of a building.
LANs typically connect separate offices in the same organization, whether they are across town
or around the world from each other.
14. Each network device must have a unique address so that data can be transmitted reliably to and
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from that device.
A MAN is a network with a size between a LAN and a WAN.
The standard used for wireless LANS is IEEE 802.10.
Latest LANs operate at very high speeds up to 1000 Gbps.
The combination of LANs and MANs is known as WAN.
The main purpose of each layer is to give services to lower layer.
In connection oriented service, the source and destination have a fixed path.
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If a computer on the network shares resources for others to use, it is called ____________.
___________________ Networks are organized into workgroups.
A_________ _____ in a network is dedicated to performing specific task in network.
In ____________ topology, if a computer’s network cable is broken, whole network goes down.
Terminators are used in _________________ topology.
Broad casting is absent in __________________ layer.
_____________ Layer is used to determine signal type: analog or digital.
_____________layer is used to determine network path on which to route packets.
_____________layer used for data encryption.
_____________topology used combination of various topologies.
11. In ____________topology all computers are connected to each other with individual
cable.
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All computers are connected to a single device is called ___________________ topology.
Number of links to connect n nodes in a mesh topology is = _______.
Mesh Topology is _______ flexible and has a ________ expandability
In BUS topology, at each end of the bus is a ____________, which absorbs any signal, removing
it from the bus.
In BUS topology, One can easily add any new node or delete any node with-out affecting other
nodes; this makes this topology easily _____________.
_________ and ______________ will force a maximum length of shared medium which can be
used in BUS topology.
The two alternatives for the operation of the central node in STAR topology are:__________ and
___________.
In Ring Topology, the links are _____________; that is, data are transmitted in__________
direction only and all are oriented in the same way.
In Ring Topology, Repeater works in 3 modes: ____________, _____________ and
______________.
A computer network interconnects a number of _____________ computers.
Computer network emerges due to the development between two fields, namely
_____________ and _____________.
Three main categories of networks are _____________, _____________ and _____________.
_____________ are privately owned while _____________ are usually owned by
government
LAN operates at a _____________ speed with _____________error rate than WANs.
Internet is _____________ of networks.
Initially, computer network was developed for ________________.
Rakesh R. Savant
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