Download IGNOU MCA Semester IV Exam Paper

Can you provide me question paper for MCA 4th semester examination of Indira Gandhi national open university ?

Here I am giving you question paper for MCA 4th semester examination of Indira Gandhi national open university in PDF file attached with it so you can get it easily..

1. (a) What is the difference between process and 10
thread ? Explain the steps in Process
switching and thread switching.
(b) Explain Single and Multiple Partition 10
Systems with reference to memory. Give
suitable examples.
(c) Explain the Crossbar and Fly Beranbe multi 10
processor interconnection network.
(d) Calculate the average waiting time, average 10
turn around time for the processes given.
Processes arrived at the same time and
processing time is given in the following
tables:
Process Processing Time
P1 06
P2 08
P3 07
P4 03

2. (a) What is thrashing ? Explain the working 10
set model to avoid the thrashing.
(b) Explain the concepts of shared memory, 10
distributed memory and distributed shared
memory.

3. (a) What is Mutual Exclusion ? Explain 10
Dekker's solution for mutual exclusion.
(b) Suppose the disk queue for the following 10
blocks is created at a time :
50, 91, 150, 42, 130, 18, 140, 70, 60
Assuming the disk head initially at block
number 50, explain the disk scheduling for
the following algorithms.
(i) FCFS
SSTF

4. (a) Explain the structure of UNIX and 10
Windows Operating Systems.
(b) What is necessary and sufficient conditions 10
for the occurrence of the deadlock ? Explain
with a suitable example.

5. Explain the following security models :
(a) Access Matrix Model
(b) Mandatory Access Control
(c) Discretionry Access Control
(d) Rule Based Access Control



1 (a) Obtain throughput for Aloha and slotted 10
Aloha Protocol and explain.
(b) What is the need of multiplexing ? Explain 5
FDM and TDM with the help of suitable
diagram.
(c) How does 802.11 deal with the problem of 10
noisy channel ? Explain.
(d) Define pipelining. Explain it in Go Back N 5
and Selective repeat with help of
appropriate diagram.
(e) Draw the Manchester and differentiate 5
Manchester encoding for the following
bitstream.
11110000
(f) Why 5 packet fragmentation needed in IP ?
Explain.

2. (a) Explain the problems of hidden static in 10
exposed static in a wireless LAN with
illustration.
(b) Differentiate between subnet and classless 5
addressing.
(c) Explain the main objectives of the upward 5
multiplexing and explain how it relates to
the performance of a network.

3. (a) What is silly wisdom syndrome ? What is 7
Clark's solution for it ?
(b) Differentiate between optical fibre and
copper wire.
(c) Explain the operation of Diffie - Hellman 7
method through an example.

4. (a) Explain the operation of congestion control 7
algorithm in TCP.
(b) What is the reason for minimum frame 6
length in IEEE802-3 ?

(c) Define Digital Signature and explain its benefits. 7
5. (a) Explain the operation of Reverse path 5
forwarding algorithm. What is the purpose
of the algorithm ?
(b) What do you understand by traffic shaping ?
How is it implemented through leaky bucket
traffic shaper and token bucket traffic
shaper ? Show it through Illustrations. 5+5+5

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You are looking for the IGNOU MCA Semester IV Exam Paper. Here I am uploading a file that contains the IGNOU MCA Semester IV Exam Paper. You can download this from here. This is as follows:

IGNOU MCA Semester IV Exam Paper




IGNOU MCA Semester IV Exam Paper




IGNOU MCA Semester IV Exam Paper





IGNOU MCA Semester IV Exam Paper
IGNOU MCA Semester IV Exam Paper
IGNOU MCA Semester IV Exam Paper

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Answered By StudyChaCha Member