C Programming Interview Questions (C/C++ ProgrammingQuiz - 3)

1. The number of main( ) functions in a C program is
[A]Only one
[B]At least one
[C]More than one
[D]Dependent on the program


2. In C, a variable that contains the address of another variable is called
[A]Array
[B]Structure
[C]Linked List
[D]Pointer


3. Which of the following statements is used to execute body of the loop at least once in a ‘C’ program?
[A]While statement
[B]Do while statement
[C]If statement
[D]If-else statement


4. Which of the following reads a floating-point value in C programming language?
[A]% e
[B]% x
[C]% h
[D]% i


5. The default initial value is zero for which of the following storage classes in C language?
[A]Automatic
[B]External
[C]Static
[D]Both (b) and (c) above


6. Which of the following is not a correct rule with respect to variables in C language?
[A]Variables should begin with a letter
[B]Variables are case sensitive
[C]Variable names should not be keywords
[D]Underscores are not allowed in defining variable names


7. Which of the following is not correct regarding decision-making statements in C programming language?
[A]A condition is expressed using C’s relational operators
[B]The relational operators compare two values to see whether they are equal to each other, not equal or whether one is greater than the other
[C]The keyword ‘if’ tells the compiler that it is a decision control instruction
[D]The ‘else’ statement will be executed if the condition specified is true


8. The output of the following program is
main()
{
int a = 5;
do
{
printf(“%d\n”, ++a);
a = -1;
}while(0);
}
[A]4
[B]5
[C]6
[D]Error


9. Which of the following is not true about a Linked List in C?
[A]Linked List is a list whose order is given by links from one item to the next
[B]Each structure of a Linked List is called a node
[C]Each node in a Linked List consists of two fields, one containing the item (value) and the other containing the address of the next item
[D]A Linked List is a collection of structures ordered by their physical placement in the memory


10. Which of the following is not a correct rule with respect to variables in C language?
[A]Variables should begin with a letter
[B]Variables are case sensitive
[C]Variable names should not be keywords
[D]Underscores are not allowed in defining variable names


11. The default initial value is zero for which of the following storage classes in C language?
[A]Automatic
[B]External
[C]Static
[D]Both (b) and (c) above


12. User-defined functions are contained in which of the following sections of a C program?
[A]Documentation Section
[B]Definition Section
[C]Global Declaration Section
[D]Sub Program Section


13. The link between a member and a variable in a C Structure is established using which of the following operators?
[A]Logical operator
[B]Increment operator
[C]Dot operator
[D]Conditional operator


14. Which of the following is false with respect to Integer Constant in C programming language?
[A]It should have at least one digit
[B]It may be either positive or negative
[C]It may have a decimal point
[D]No commas or blanks are allowed


15. Which of the following tasks is carried out by ‘for’ loop in C programming language?
I. Initializing the loop counter.
II. Testing the loop counter to determine whether its value has reached the number of repetitions desired.
III. Incrementing the value of the loop counter each time the segment within the loop has been executed.
[A]Only (I) above
[B]Only (II) above
[C]Both (I) and (II) above
[D]All (I), (II) and (III) above