Exam Details
| Subject | data communication and networking – i | |
| Paper | ||
| Exam / Course | b.sc. – i (ecs) | |
| Department | ||
| Organization | solapur university | |
| Position | ||
| Exam Date | November, 2018 | |
| City, State | maharashtra, solapur |
Question Paper
B.Sc. (E.C.S.) (Part III) (Semester Examination, 2018
computer science (New cbcs)
Data Communication and Networking I (Paper II)
Day and Date Monday, 19-11-2018 Total Marks 70
Time 2.30 p.m. to 5.00 p.m.
Instructions All questions are compulsory.
Figures to the right indicate full marks.
1. Multiple Choice Questions. 14
Computer Network is
Collection of hardware components and computers
Interconnected by communication channels
Sharing of resources and information
All of the above
For a channel, we need to use the Shannon capacity to
find the maximum bit rate.
Noiseless Noisy
Low-pass Band pass
provides a connection-oriented reliable service for sending
messages.
TCP IP
UDP All of the above
Addressing mechanism is done at
Physical layer Data Link Layer
Application Layer Physical layer
Coaxial cable consists of concentric copper
conductors.
1 2 3 4
Set P
HTTP is protocol.
Application layer Transport layer
Network layer Physical layer
Physical or logical arrangement of network is
Networking Routing
Topology Linking
Topology there is a central controller or hub.
Mesh Star
Ring Bus
The resources needed for communication between end systems are reserved
for the duration of session between end systems in
Packet switching Frequency switching
Line switching Circuit switching
10) Which transmission media has the highest transmission speed in a
network
Coaxial cable Twisted pair cable
Optical fiber Electrical cable
11) The physical layer translates logical communication requests from the
into hardware specific operations.
Data link layer Network layer
Transport layer Application layer
12) Wireless transmission can be done via
Radio waves Microwaves
Infrared All of the above
13) Application layer offers service.
End to end Process to process
Both of the mentioned None of the mentioned
14) The packet of information at the application layer is called
Packet Message
Segment Frame
2. Answer the following (Any Four). 8
Define data communication.
What is point-point link
What is the purpose of physical layer
Define flow control.
Define Period and Frequency.
Write a notes on (Any Two). 6
Pulse Coded Modulation.
Attenuation.
Connection oriented and connectionless services.
3. Answer the following (Any Two). 8
Explain types of network topologies.
Explain the message switching.
Explain the Go Back N ARQ.
Answer the following (Any One). 6
Define the guided media. Explain the Twisted Pair Cable.
Explain the Congestion Control in Virtual circuit Subnet.
4. Answer the following (Any Two). 10
What is multiplexing Explain Time division multiplexing.
Explain the Data link layer Design issues in detail.
Explain distance vector routing algorithm.
Answer the following (any one). 4
Explain the concept of internet working.
Explain the ALOHA.
5. Answer the following (Any Two). 14
Define network model. Explain ISO-OSI reference model.
Define transmission mode. Explain parallel and serial transmission
mode.
What is Channelization Explain the FDMA and CDMA in detail.
computer science (New cbcs)
Data Communication and Networking I (Paper II)
Day and Date Monday, 19-11-2018 Total Marks 70
Time 2.30 p.m. to 5.00 p.m.
Instructions All questions are compulsory.
Figures to the right indicate full marks.
1. Multiple Choice Questions. 14
Computer Network is
Collection of hardware components and computers
Interconnected by communication channels
Sharing of resources and information
All of the above
For a channel, we need to use the Shannon capacity to
find the maximum bit rate.
Noiseless Noisy
Low-pass Band pass
provides a connection-oriented reliable service for sending
messages.
TCP IP
UDP All of the above
Addressing mechanism is done at
Physical layer Data Link Layer
Application Layer Physical layer
Coaxial cable consists of concentric copper
conductors.
1 2 3 4
Set P
HTTP is protocol.
Application layer Transport layer
Network layer Physical layer
Physical or logical arrangement of network is
Networking Routing
Topology Linking
Topology there is a central controller or hub.
Mesh Star
Ring Bus
The resources needed for communication between end systems are reserved
for the duration of session between end systems in
Packet switching Frequency switching
Line switching Circuit switching
10) Which transmission media has the highest transmission speed in a
network
Coaxial cable Twisted pair cable
Optical fiber Electrical cable
11) The physical layer translates logical communication requests from the
into hardware specific operations.
Data link layer Network layer
Transport layer Application layer
12) Wireless transmission can be done via
Radio waves Microwaves
Infrared All of the above
13) Application layer offers service.
End to end Process to process
Both of the mentioned None of the mentioned
14) The packet of information at the application layer is called
Packet Message
Segment Frame
2. Answer the following (Any Four). 8
Define data communication.
What is point-point link
What is the purpose of physical layer
Define flow control.
Define Period and Frequency.
Write a notes on (Any Two). 6
Pulse Coded Modulation.
Attenuation.
Connection oriented and connectionless services.
3. Answer the following (Any Two). 8
Explain types of network topologies.
Explain the message switching.
Explain the Go Back N ARQ.
Answer the following (Any One). 6
Define the guided media. Explain the Twisted Pair Cable.
Explain the Congestion Control in Virtual circuit Subnet.
4. Answer the following (Any Two). 10
What is multiplexing Explain Time division multiplexing.
Explain the Data link layer Design issues in detail.
Explain distance vector routing algorithm.
Answer the following (any one). 4
Explain the concept of internet working.
Explain the ALOHA.
5. Answer the following (Any Two). 14
Define network model. Explain ISO-OSI reference model.
Define transmission mode. Explain parallel and serial transmission
mode.
What is Channelization Explain the FDMA and CDMA in detail.
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