Sikkim-Manipal University of Health Medical and Technological Sciences (SMUHMTS) 2008-3rd Sem M.C.A Model for of Manipal University - Question Paper

These are model ques. paper for SMU learner of MCA third semester.

Subject Code: MC0075
Subject: COMPUTER NETWORKS
[1 MARKS EACH]


1) NOS is a
a) Software
b) Hardware
c) Device
d) None

2) ___________(IEEE 802.11) is the standard for wireless lens.

3) The term __________(computer network) is used to mean an interconnected collection of autonomous computers.
4) Videoconference technology obtains extensively helpful for remote school.

5) Session and presentation layers are not there in TCP / IP reference model.

6) Host to Host layer is also called Transport layer.

7) TCP / IP reference model was created in 1970s by DARPA.

8) Which layer is not really a layer
a) Host of the network
b) Network to host
c) Application to presentation
d) None

9) De facto Latin word means from the fact.

10) What sound level corresponds to the threshold of hearing zero of B.

11) The Fourier series formula is
(a) g(t) = 1/2 (+ ? an sn (2pft) + + ? pn ces(2pft)

12) Which mode of transmission requires a clock
a) Serial
b) Parallel
c) Serial-parallel
d) None

13) FDW, WDM, TDM stands for
a) Frequency division multiplexing
b) Wavelength division multiplexing
c) Time division multiplexing

14) The term used to define the way in which computers are connected in network.
a) Topology
b) Technology
c) Logic
d) None

15) Circuit swishing n / w is used for dedicated circuit.

16) Is packet swishing passed on connection oriented service?
a) No

17) Which is the process in which 2 or more signals are combined?
a) Multiplexing
b) De-multiplexing
c) None
d) 1 & two both

18) The wireless transmission is
a) Radio and Microwave

19) Which coaxial cable uses BNC connector?
a) Thin coax

20) The topology that is most commonly used and easily expandable.
a) Star
b) Ring
c) Bus
d) None

21) ----------- suffers more impairment than coaxial cable.
a) Twisted pair
22) DLL deals implements the flow control using the --------- technique.
a) Feedback

23) If the total number of bits are even then the parity bits appended is called.
a) Odd
b) Even
c) Prime
d) None
24) The hamming code for the blank character whose ASCII code is “0100000”.
a) 10011000000
b) 1010100000
c) None
d) 0000111100
25) The throughput of pure ALOHA.
a) 18.1%
b) 18.2%
c) 18.4%
d) 18.9%

26) The random time after collision is provided by
a) Binary exponential back off algo
b) Binary logarithmic back off algo
c) Binary to octal back off algo
d) None

27) The throughput of slotted ALOHA is ---------
a) 36.8%

28) State “T” or “F” “congestion tends to feed upon itself.”
a) True
29) Flooding is ------------ algo.
a) Routing
b) Partitioning
c) None

Earning:   Approval pending.