C Quiz interview questions

The index value for an element in an array is indicated within _____ brackets.

1. /*
2. ()
3. []
4. {}

How many bits are used to store data starting from right extreme?

1. 15
2. 16
3. 32
4. 64

Static and Register variables are automatically initialized to _____ value when they are declared.

1. 0
2. 1
3. 2
4. 3

The long int, signed long int has _____ bytes.

1. 2
2. 3
3. 4
4. 8

What is the range for char data type in C++?

1. -126 to 127
2. -127 to 128
3. 128 to -127
4. -128 to 127

What is the prefix character used to represent escape sequence?

1. - =
2. +
3. *
4. /

The _____ symbol is used to declare a pointer variable.

1. #
2. /
3. &
4. *

The operator _____ is called the insertion operator or put to operator.

1. >
2. >>

The number of elements in a 2 dimensional array is determined by multiplying the number of _____ with number of _____

1. row, columns
2. row, row
3. columns, columns
4. rows, columns

_____ creates branches for multiple alternatives section of code, depending on the value of a single variable.

1. while
2. for
3. if
4. switch

_____ punctuator is used to treat statements as comments.

1. /
2. //
3. +
4. *

The minimum value stored in an integer variable is

1. 32780
2. -32767
3. 32769
4. -32768

The pointer data type address of _____ operator is used.

1. &
2. #
3. /
4. *

The unsigned char, and char data types has _____ bits.

1. 8
2. 16
3. 32
4. 64

The modifier _____ instructs the compiler to store the variable in the CPU register to optimize access.

1. register
2. static
3. extern
4. auto

_____ data type is further divided into float and double.

1. double
2. float
3. char
4. int

In _____ method, the called function arguments formal parameters become alias to the actual parameters in the calling function.

1. return
2. call
3. call by value
4. call by reference

The declaration statement char *cp, is a _____ type pointer.

1. double
2. string
3. character
4. integer

The base data type should be prefixed with the _____ at the time of declaring a variable.

1. dimension
2. variable
3. constant
4. modifiers

In C++ int data type has the range of values

1. 32767 to 32768
2. 32768 to 32769
3. -32768 to 32767
4. -32768 to 32768

What are the equality operators?

1. ==
2. ! =
3. both a and b

Integral is the _____ data type.

1. float
2. double
3. integer
4. char

When elements are stored column-wise manner it is called as _______ order.

1. row
2. column
3. row-major
4. column-major

When the modifier unsigned is used the integer data type will store only _____ values, the sign bit is also used to store data.

1. one
2. two
3. positive
4. negative

_____ bit is also called as the most significant bit or sign bit.

1. 15th
2. 16th
3. 17th
4. 18th

The default return data type of a function, if no data type is explicitly mentioned is

1. double
2. float
3. char
4. int

The maximum value stored in an integer variable is

1. 32768
2. -32768
3. 32767
4. 32780

The range to store integer data goes upto

1. 213
2. 214
3. 215
4. 216

_____ data type that can hold both character data and the integer data.

1. double
2. float
3. char
4. int

_____ data type enables to invent his own data type and define values.

1. Integral
2. Floating
3. Derived
4. User defined