ISRO CS 2017 - May

Question 41

SATA is the abbreviation of

• Serial Advanced Technology Attachment
• Serial Advanced Technology Architecture
• Serial Advanced Technology Adapter
• Serial Advanced Technology Array

Question 42

Capability Maturity Model (CMM) is a methodology to

• develop and refine an organization\'s software development process
• develop the software
• test the software
• All of the above

Question 43

What problem is solved by Dijkstra banker’s algorithm?

• Cache coherence
• Mutual exclusion
• Deadlock recovery
• Deadlock avoidance

Question 44

The number of swappings needed to sort the numbers 8, 22, 7, 9, 31, 5, 13 in ascending order, using bubble sort is

• 11

• 12

• 13

• 10

Question 45

Consider the following tree If the post order traversal gives ab-cd*+ then the label of the nodes 1,2,3,… will be

• +,-,*,a,b,c,d
• a,-,b,+,c,*,d
• a,b,c,d,-,*,+
• -,a,b,+,*,c,d

Question 46

What is the output of the following program?

main( )
{
int a = 10;
if ((fork ( ) == 0))
a++;
printf (“%d\\n”, a );
} 

• 10 and 11
• 10
• 11
• 11 and 11

Question 47

Given reference to the following pages by a program 0, 9, 0, 1, 8, 1, 8, 7, 8, 7, 1, 2, 8, 2, 7, 8, 2, 3, 8, 3 How many page faults will occur if the program has three page frames available to it and uses an optimal replacement?

• 7
• 8
• 9
• None of these

Question 48

Consider the following C function

void swap ( int x, int y )
{
int tmp;
tmp = x;
x= y;
y = tmp;
}

In order to exchange the values of two variables a and b:

• Call swap (a, b)
• Call swap (&a, &b)
• swap(a, b) cannot be used as it does not return any value
• swap(a, b) cannot be used as the parameters passed by value

Question 49

What does the following C-statement declare? int (*f) (int*);

• A function that takes an integer pointer as argument and returns an integer
• A function that takes an integer as argument and returns an integer pointer
• A pointer to a function that takes an integer pointer as argument and returns an integer
• A function that takes an integer pointer as argument and returns a function pointer

Question 50

Mutual exclusion problem occurs

• Between two disjoint processes that do not interact
• Among processes that share resources
• Among processes that do not use the same resource
• Between two processes that uses different resources of different machine