Declarations and Initialization – General Questions

1. Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1?

A. rem = 3.14 % 2.1;
B. rem = modf(3.14, 2.1);
C. rem = fmod(3.14, 2.1);
D. Remainder cannot be obtain in floating point division.

Correct Answer: C. rem = fmod(3.14, 2.1);

2. What are the types of linkages?

A. Internal and External
B. External, Internal and None
C. External and None
D. Internal

Correct Answer: B. External, Internal and None

3. Which of the following special symbol allowed in a variable name?

A. * (asterisk)
B. | (pipeline)
C. – (hyphen)
D. _ (underscore)

Correct Answer: D. _ (underscore)

4. Is there any difference between the following declarations?

1 : extern int fun();
2 : int fun();

A. Both are identical
B. No difference, except extern int fun(); is probably in another file
C. int fun(); is overrided with extern int fun();
D. None of these

Correct Answer: B. No difference, except extern int fun(); is probably in another file

5. How would you round off a value from 1.66 to 2.0?

A. ceil(1.66)
B. floor(1.66)
C. roundup(1.66)
D. roundto(1.66)

Correct Answer: A. ceil(1.66)

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