Solapur University Question Paper
M.C.A. II (Semester – III) Examination, 2014
(Commerce)
DATA COMMUNICATION AND COMPUTER NETWORKS
Day and Date : Tuesday, 6-5-2014 Total Marks : 70
Time : 3.00 p.m. to 6.00 p.m.
Instructions : 1)Q. No. 1 and Q. No. 7 are compulsory.
2) Attempt any two questions from Q. No. 2, 3 and 4.
Solve any one question from Q.No. 5 and Q.No. 6.
3) Figures to right indicate marks to a question or sub
question.
1. a) Choose the correct option and rewrite the sentences. 7
1) Terminators are used in ______ topology.
a) Bus b) Star c) Ring d) Mesh
2) _______ layer decides which physical pathway the data should take.
a) Application b) Network
c) Physical d) Communication
3) ISDN is an example of ______ network.
a) Circuit switched b) Packet switched
c) Message switched d) None of these
4) X.25 is an example of ______ network.
a) Circuit switched b) Packet switched
c) Message switched d) None of these
5) ________ allows LAN users to share computer programs and data.
a) Communication server b) Print server
c) File server d) None of these
Seat
No.
SLR-GL – 22
6) Print server uses ______ which is a buffer that holds data before it is
send to the printer.
a) Queue b) Spool c) Node d) None of these
7) A standalone program that has been modified to work on a LAN by
including concurrency controls such as file and record locking is an
example of
a) LAN intrinsic software b) LAN aware software
c) Groupware d) Ignorant software
b) State True or False. 7
1) OSI stands for Open Sequential Interface.
2) The range of frequencies contained in a composite signal is its
n = bandwidth.
3) Modulation does not allow to use a bandpass channel.
4) Bandwidth is measured in bits per second.
5) FDM is digital multiplexing technique.
6) Waves ranging between 1 to 300 GHz are called microwaves.
7) A switched network consists of a series of interlinked nodes.
2. a) Explain different types of network topologies. 7
b) Explain Circuit switching in short. 7
3. a) Explain X.25 network architecture. 7
b) Explain TCP/IP model. 7
4. a) What is transmission protocol ? Explain its functions. 7
b) What is broad band ? Explain various broad band networks. 7
5. a) Write a note on : IP Routing. 7
b) Explain DNS in detail. 7
6. a) Write a note on : MIME. 7
b) Explain the terms : 7
i) POP ii) IMAP iii) FTP.
7. Explain detail network threats and security measures available. 14
__________________
M.C.A. II (Semester – III) Examination, 2014
(Commerce)
DATA COMMUNICATION AND COMPUTER NETWORKS
Day and Date : Tuesday, 6-5-2014 Total Marks : 70
Time : 3.00 p.m. to 6.00 p.m.
Instructions : 1)Q. No. 1 and Q. No. 7 are compulsory.
2) Attempt any two questions from Q. No. 2, 3 and 4.
Solve any one question from Q.No. 5 and Q.No. 6.
3) Figures to right indicate marks to a question or sub
question.
1. a) Choose the correct option and rewrite the sentences. 7
1) Terminators are used in ______ topology.
a) Bus b) Star c) Ring d) Mesh
2) _______ layer decides which physical pathway the data should take.
a) Application b) Network
c) Physical d) Communication
3) ISDN is an example of ______ network.
a) Circuit switched b) Packet switched
c) Message switched d) None of these
4) X.25 is an example of ______ network.
a) Circuit switched b) Packet switched
c) Message switched d) None of these
5) ________ allows LAN users to share computer programs and data.
a) Communication server b) Print server
c) File server d) None of these
Seat
No.
SLR-GL – 22
6) Print server uses ______ which is a buffer that holds data before it is
send to the printer.
a) Queue b) Spool c) Node d) None of these
7) A standalone program that has been modified to work on a LAN by
including concurrency controls such as file and record locking is an
example of
a) LAN intrinsic software b) LAN aware software
c) Groupware d) Ignorant software
b) State True or False. 7
1) OSI stands for Open Sequential Interface.
2) The range of frequencies contained in a composite signal is its
n = bandwidth.
3) Modulation does not allow to use a bandpass channel.
4) Bandwidth is measured in bits per second.
5) FDM is digital multiplexing technique.
6) Waves ranging between 1 to 300 GHz are called microwaves.
7) A switched network consists of a series of interlinked nodes.
2. a) Explain different types of network topologies. 7
b) Explain Circuit switching in short. 7
3. a) Explain X.25 network architecture. 7
b) Explain TCP/IP model. 7
4. a) What is transmission protocol ? Explain its functions. 7
b) What is broad band ? Explain various broad band networks. 7
5. a) Write a note on : IP Routing. 7
b) Explain DNS in detail. 7
6. a) Write a note on : MIME. 7
b) Explain the terms : 7
i) POP ii) IMAP iii) FTP.
7. Explain detail network threats and security measures available. 14
__________________
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