C exam2

The prototype of the driver function of C?

int main(void);
int main(int argc, char **argv);
None of the above
All of the above

Functions cannot return more than one value at a time. True or False?

True
False

Functions can be called either by value or reference. True or False?

True
False

Functions cannot return a floating point number. Yes/No ?

Yes
No

Usually recursion works slower than loops. Yes/No ?

Yes
No

There is a error in the below program. Which statement will you add to remove it? #include<stdio.h> int main() { int a; a = f(10, 3.14); printf("%d\n", a); return 0; } float f(int aa, float bb) { return ((float)aa + bb); }

Add prototype: float f(aa, bb)
Add prototype: float f(int, float)
Add prototype: float f(float, int)
Add prototype: float f(bb, aa)

Point out the error in the program. #include<stdio.h> int f(int a) { a > 20? return(10): return(20); } int main() { int f(int); int b; b = f(20); printf("%d\n", b); return 0; }

Error: Prototype declaration
No error
Error: return statement cannot be used with conditional operators
None of the above

The period during which a variable retains a given value during execution of a program

scope
longetivity
life time
none of the above

Which of the following is not a library function?

sqrt()
sum()
time()
all of the above

What is the scope of a register variable?

Local scope
Program scope
File scope
Global scope

What is the default value of an auto variable?

0
1
garbage
infinity

A recursion in which a function calls another function, which in turn calls the first function.

linear recursion
non-linear recursion
mutual recursion
None of the above

Which of the following can be passed to functions as arguments?

arrays
character arrays
two dimensional arrays
All of the above

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C exam2

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C exam2