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C Language Basics - Objective Type Questions with Answers

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C programming language basics quiz & multiple choice questions(mcqs) and answers are available to download in PDF for free.
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(26) The && and || operators
[A] compare two numeric values
[B] combine two numeric valuesshort hand operator, &
[C] compare two boolean values
[D] none of these

Comment

Answer: Option [C]

The logical operators in C are &&(Logical AND), ||(Logical OR) and !(Logical NOT). They compare two boolean values.

(27) In an assignment statement a=b; which of the following statement is true ?
[A] The variable a and the variable b are same.
[B] The value of b is assigned to variable a but if b changes later, it will not effect the value of variable a.
[C] The value of b is assigned to variable a but if b changes later, it will effect the value of variable a
[D] The value of variable a is assigned to variable b, and the value of variable b is asssigned to variable a.

Comment

Answer: Option [B]

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(28) Which of the following is not a valid relational operator?
[A] *
[B] ==
[C] >=
[D] <=

Comment

Answer: Option [A]
(29) Which is an incorrect variable name?
[A] Id_No
[B] ID_NO
[C] IdNo
[D] Id No

Comment

Answer: Option [D]

Because there is a blank space in the variable name, which is not permitted in C.

(30) Which of the following is responsible for conversion of C programs to machine language ?
[A] Operating system
[B] An editor
[C] A compiler
[D] An interpreter

Comment

Answer: Option [C]

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