C Programming - C Basic Concepts Questions and Answers

1. The value of automatic variable that is declared but not initialized will be?

[A] 0

[B] 1

[C] Unpredictable

[D] None of above

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2. Choose the correct statement

[A] An identifier may start with an underscore

[B] An identifier may end with an underscore

[C] IF is a valid identifier

[D] All of above

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3. The const feature can be applied to?

[A] An identifier

[B] An array

[C] An array argument

[D] All of above

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4. The expression 5-2-3*5-2 will evaluate to 18 if ?

[A] - is left associative and * has precedence over -

[B] - is right associative and * has precedence over -

[C] - is right associative and - has precedence over *

[D] - if left associative and - has precedence over *

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5. C language has been developed by ?

[A] . Dennis Ritchie

[B] Peter Norton

[C] Ken Thompson

[D] Martin Richards

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6. Smallest element of Array Index is called

[A] Lower Bond

[B] Upper Bond

[C] Extraction

[D] Rang

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7. Cons feature can be applied on

[A] identifier

[B] array

[C] Array Argument

[D] Function

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8. 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.

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External Linkage-> means global, non-static variables and functions. Internal Linkage-> means static variables and functions with file scope. None Linkage-> means Local variables.

9. What are the types of linkages?

[A] Internal and External

[B] External and None

[C] External, Internal and None

[D] Internal

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10. Is there any difference between 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

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C Programming - C Basic Concepts Questions and Answers

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