1. Seek
time is ...............
(A) time taken to retrieve a data
(B) time taken by read/write head mechanism
to position itself over appropriate cylinder
(C) time taken by appropriate sector to come
under read/write
(D) time taken to find out the data
Answer: B
2. Latency
time is ...................
(A) time taken by read/write head mechanism
to position itself over appropriate cylinder
(B) time taken to transfer a data from memory
(C) time taken by appropriate sector to come
under read/write head
(D) time taken to retrieve the data
Answer: C
3. If
and the switch statements are called as ................. statements.
(A) iteration (B)
jump
(C) selection (D)
conditional
Answer: C
4. The
conditional expressions are evaluated from .............
(A) top down (B)
bottom up
(C) middle (D)
end
Answer: A
5. What
is the output of the following program?
main ( )
{ extern int x;
x = 20;
printf(“\n%d”, x);
}
(A) 0 (B)
20
(C) error (D)
garbage value
Answer: C
Explanation:
Output of the given program will be “Linker
error-undefined symbol x”. External variables are declared outside a function.
6.
What
is the output of the following program segment?
main()
{
int
i = 1;
do
{
printf(“%d..”, i);
}
while(i--);
}
(A)
0..1.. (B) 1..0..
(C)
0 (D) -1
Answer: B
7.
What
is the output of the following program segment?
main()
{
int
i = ++2;
printf(“%d\n”,
i);
}
(A)
3 (B) 2
(C)
0 (D) -1
Answer: A
Explanation:
It
is a compilation error. However if we write “i=2; ++i;” then value of i is
printed as 3.
8.
Output
of the program given below is
int
i;
main()
{
printf(“%d”,
i);
}
(A)
1 (B) 0
(C)
-1 (D) Null
Answer: B
9.
What
will be the output of the following program ?
main()
{
char
*p = “ayqm”;
printf
(“%c”, ++*(p++));}
(A)
b (B) z
(C)
q (D) n
Answer: A
10. What
is a Constructor?
(A) A function called when an instance of a
class is initialized.
(B) A function that is called when an
instance of a class is deleted.
(C) A special function to change the value of
dynamically allocated memory.
(D) A function that is called in order to
change the value of a variable.
Answer: A
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