University Of Pune Question Paper,2010 Question Paper,(IT-13) 104 : OPERATING SYSTEM CONCEPTS,M.C.A. (Semester – I) (Management Faculty)

University Of Pune Question Paper
M.C.A. (Semester – I) (Management Faculty) Examination, 2010
(IT-13) 104 : OPERATING SYSTEM CONCEPTS
(2008 Pattern) (New)
Time : 3 Hours Total Marks : 70
 Note : 1) Q. 1 and Q. 7 are compulsory questions.
2) Attempt any four from the Q. 2 to Q. 6.
1. What is IPC ? Explain how IPC is implemented in client server system. 10
2. What is Memory Management ? Explain paging in detail. 10
3. What is Deadlock ? Explain critical section problem with example. 10
4. Explain free space management methods in detail. 10
5. Define centralized O.S. and distributed O.S. Explain advantages of distributed
O.S. 10
6. Explain different disk performance issues and also explain two disk scheduling
algorithms. 10
7. Write short notes on (any four) : 20
i) FAT
ii) NOS
iii) CPU schedular
iv) PCB
v) System calls.
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IT-12 : 102 : 'C'-PROGRAMMING,University Of Pune Question Paper,M.C.A. (Semester – I) (Management faculty),2010 Question Paper

University Of Pune Question Paper
M.C.A. (Semester – I) (Management faculty) Examination, 2010
IT-12 : 102 : 'C'-PROGRAMMING
(2008 Pattern) (New)
Time : 3 Hours Total Marks : 70
Instructions : 1) Question No. 1 is compulsory.
2) Solve any six from Q. No. 2 to Q. No. 9.
3) Use comments wherever necessary.
4) Figures to the right indicate full marks.
1. Find and explain output of the following : 10
A) int f( )
main( )
{
f(1);
f(1,2);
f(1,2,3);
}
f(int a, int b, int c)
{ printf ("%d %d %d", a,b,c);}
B) #define lee(a,b,c) avg (a,b,c) <=60
#define des(a,b,c,d) (d= =1 ? geq(a,b,c) : lee(a,b,c))
void main(void)
{
int num = 70;
char ch = '0';
float f = 2.0;
if des (num, ch, f, o) puts ("lee");
else puts ("geq");
}
[3880] – 102 -2-
C) Void main( )
{
int x = 0×1234;
int y = 0×5678;
x = x & 0×5678;
y = y | 0×1234;
x = x ^ y;
printf ("%x\t", x);
printf ("%x\t", y);
}
D) Void main ( )
{
char *s[ ] = {"Dharma", "Norton", "Simens", "ibm"};
char **p;
p = s;
printf ("%s", ++ *p);
printf ("%s", *p ++);
printf ("%s", ++ *p);
}
2. A) Write a program to compute the real roots of quadratic equation px2
 + qx + R = 0.
The roots are given by equation x1 = – q + sqrt (q2 – 4PR)/2p and
x2
 = – q – sqrt (q2 – 4PR)/2p. 5
B) Write a program to accept integer numbers till user enters '0' and display how
many non-zero integers entered. 5
3. Write a program to accept five strings from user and display all those strings in
descending order. 10
4. Write a program, which will accept file name and string from command prompt
and append the string in given file. 10
5. A) Write a note on – Masking using bitwise operator. 5
B) Write a user defined function * strcmp (char * t1
, char * t2
) which compares
two strings t1 and t2
.Do not use library functions. 5
6. Create structure Elect Bill having members consumer_no, name, no_of_units,
amt. Write a program to accept 10 records.
Calculate amt – using following rate.
For no_of_units less than 100 – rate Rs. 1.50 per unit.
 no_of_units greater than 100 – rate Rs. 6.50 per unit.
Display the records of largest and smallest amt. 10
7. A) Write a program to demonstrate fill color in circle. 5
B) Write a program to display the following pattern. 5
A1
B2, C3
D4, E5, F6
G7, H8, I9, J10.
8. Write a program to display frequency of each character in a given file. 10
9. A) Write a program using function to print sum of digits of given number. 5
B) Write a program to count no. of sentences in a given file. 5
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B