1. When compiler accepts the request to use the variable as a register?
a) It is stored in CPU
b) It is stored in cache memory
c) It is stored in main memory
d) It is stored in secondary memory
Answer
Answer: a [Reason:] None.
2. Which data type can be stored in register?
a) int
b) long
c) float
d) all of the mentioned
Answer
Answer: d [Reason:] None.
3. Which of the following operation is not possible in a register variable?
a) Reading the value into a register variable
b) Copy the value from a memory variable
c) Global declaration of register variable
d) All of the mentioned
Answer
Answer: d [Reason:] None.
4. Which among the following is the correct syntax to declare a static variable register?
a) static register a;
b) register static a;
c) Both static register a; and register static a;
d) We cannot use static and register together
Answer
Answer: d [Reason:] None.
5. Register variables reside in
a) stack
b) registers
c) heap
d) main memory
Answer
Answer: b [Reason:] None.
6. What is the output of this C code?
-
#include <stdio.h> -
void main()
-
{ -
register int x = 0;
-
if (x < 2)
-
{ -
x++; -
main();
-
} -
}
a) Segmentation fault
b) main is called twice
c) main is called once
d) main is called thrice
Answer
Answer: a [Reason:] None.
7. What is the output of this C code?
-
#include <stdio.h> -
void main()
-
{ -
register int x;
-
printf("%d", x);
-
}
a) 0
b) Junk value
c) Compile time error
d) Noting
Answer
Answer: b [Reason:] None.
8. What is the output of this C code?
-
#include <stdio.h> -
register int x;
-
void main()
-
{ -
printf("%d", x);
-
}
a) Varies
b) 0
c) Junk value
d) Compile time error
Answer
Answer: d [Reason:] None.
