Computer interview questions – page 44

Which punctuator is used to group a set of C++ statements?

1. A.{}
2. B.[]
3. C.()
4. D./

____ refers to the process of changing the data type of the value stored in a variable.

1. A.Type char
2. B.Type int
3. C.Type float
4. D.Type cast

____ data types are structure, union, class and enumeration.

1. A.Derived
2. B.Integer
3. C.Built-in
4. D.User defined

Which operator is used to compare numerical values?

1. A.Relational
2. B.Conditional
3. C.Assignment
4. D.Arithmetic

____ allocates memory, based on the data type of the variable.

1. A.Interpreter
2. B.Link
3. C.Converter
4. D.Compiler

Every variable will be referred by its ___

1. A.Data
2. B.Int
3. C.Name
4. D.Address

Which storage class defines local variable known to the block in which they are defined?

1. A.Register
2. B.Auto
3. C.Extern
4. D.Static

____ allows users to define the user defined data type identifier.

1. A.Class
2. B.Data
3. C.Identifier
4. D.Type definition

What is the length of long double data type?

1. A.8
2. B.16
3. C.32
4. D.80

When a=6 and c=a++ what is the value of c?

1. A.6
2. B.7
3. C.8
4. D.9

The statement int A; b; is invalid because ____

1. A.Variables should be separated by Comma
2. B.Capital A is not allowed
3. C.Only one variable should be given
4. D.All of these

What is the default file extension for all Word documents?

1. A.FIL
2. B.DOC
3. C.WRD
4. D.TXT

The ____ key and the ___ key can be used in combination with other keys to perform shortcuts and special tasks.

1. A.Control, Alt
2. B.Function, toggle
3. C.Delete, Insert
4. D.Caps Lock, Num Lock

How many operators are classified in C++?

1. A.11
2. B.13
3. C.14
4. D.15

____ is the C increment Operator in C++.

1. A.++
2. B.+*
3. C.*+
4. D.--

The special characters like tab, backspace, line feed, null, back slash are called ____ character constant

1. A.Floating
2. B.String
3. C.Graphic
4. D.Non-graphic

What type of integer starts with 0X?

1. A.Decimal
2. B.Binary
3. C.Hexadecimal
4. D.Octal

The sequence of digits starting with 0 is treated as ___ constant.

1. A.Penta
2. B.Hexadecimal
3. C.Binary
4. D.Octal

The body of function contains ___

1. A.Return statement
2. B.A variable declaration part
3. C.Processing part
4. D.All the above

Which of the following is not a C++ keyword?

1. A.This
2. B.New
3. C.Cont
4. D.If

____ is a variable that holds a memory address.

1. A.Long double
2. B.Float
3. C.Char
4. D.Pointer

Addressing is done using ___ number system.

1. A.Decimal
2. B.Hexadecimal
3. C.Octal
4. D.Binary

Which one of the following is a membership operator?

1. A.!
2. B.&
3. C.::
4. D..

____ Operator requires two operands.

1. A.Logical
2. B.Binary
3. C.Unary
4. D.Ternary

Additive, Multiplicative, shift, Bitwise logical and assignment operators is ____ operator.

1. A.Conditional
2. B.Relational
3. C.Unary
4. D.Binary

Binary plus (+) and Binary minus (-) are ___ operator.

1. A.Additive
2. B.Multiplicative
3. C.Shift
4. D.Bitwise

What is the length of double data type?

1. A.8
2. B.16
3. C.32
4. D.64

Which operator requires three operands?

1. A.Unary
2. B.Binary
3. C.Ternary
4. D.Bitwise

What are bitwise operators?

1. A.&
2. B.!
3. C.^
4. D.All (a, b and c)

Auto variables get undefined values known as ___

1. A.Garbage
2. B.Auto
3. C.Register
4. D.Static