McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Computer Applications (BCA) , Programming Languages .
| 51. |
Which of the following is not a correct variable type? |
| A. | Float |
| B. | Real |
| C. | Int |
| D. | double |
| Answer» B. Real | |
| 52. |
A variable is/are |
| A. | String that varies during program execution |
| B. | A portion of memory to store a determined value |
| C. | Those numbers that are frequently required in programs |
| D. | None of these |
| Answer» B. A portion of memory to store a determined value | |
| 53. |
By default, the members of a C++ class are: |
| A. | Private |
| B. | Public |
| C. | Protected |
| D. | None of these |
| Answer» A. Private | |
| 54. |
Which of the following function that must contain in all C++ Programs |
| A. | start() |
| B. | system() |
| C. | main() |
| D. | program() |
| Answer» C. main() | |
| 55. |
Which one of the following is the correct operator to compare two values |
| A. | := |
| B. | = |
| C. | Equal |
| D. | = = |
| Answer» D. = = | |
| 56. |
C++ is originally developed by |
| A. | Nicolas Wirth |
| B. | Dennis Ritchi |
| C. | Bjarne Stroustrup |
| D. | Ken Thompson |
| Answer» C. Bjarne Stroustrup | |
| 57. |
The operator ‘<< ‘is called |
| A. | Get from operator |
| B. | Put to operator |
| C. | Extraction operator |
| D. | None of these |
| Answer» B. Put to operator | |
| 58. |
Identify the unary operator. |
| A. | ? , : |
| B. | ++ |
| C. | + |
| D. | % |
| Answer» B. ++ | |
| 59. |
The ‐‐‐‐‐‐‐ are used to check the relationship between two numeric operands or expressions. |
| A. | Logical operators |
| B. | Relational operators |
| C. | Arithmetic operators |
| D. | Bitwise operators |
| Answer» B. Relational operators | |
| 60. |
To increase the value of c by one which of the following statement is wrong? |
| A. | c++; |
| B. | c = c + 1; |
| C. | c + 1 => c; |
| D. | c += 1 |
| Answer» C. c + 1 => c; | |
| 61. |
In an assignment statement a=b Which of the following statement is true? |
| A. | The variable a and the variable b are equal. |
| B. | The value of b is assigned to variable a but the later changes on variable b will not affect the value of variable a |
| C. | The value of b is assigned to variable a and the later changes on variable b will affect the value of variable a |
| D. | The value of variable a is assigned to variable b and the value of variable b is assigned to variable a. |
| Answer» B. The value of b is assigned to variable a but the later changes on variable b will not affect the value of variable a | |
| 62. |
The continue statement |
| A. | resumes the program if it is hanged |
| B. | resumes the program if it was break was applied |
| C. | skips the rest of the loop in current iteration |
| D. | all of above |
| Answer» C. skips the rest of the loop in current iteration | |
| 63. |
Find out the error in following block of code. If (x = 100) Cout << “x is 100”; |
| A. | 100 should be enclosed in quotations |
| B. | There is no semicolon at the end of first line |
| C. | Equals to operator mistake |
| D. | Variable x should not be inside quotation |
| Answer» C. Equals to operator mistake | |
| 64. |
What is the final value of x when the code int x; for(x=0; x<10; x++) {} is run? |
| A. | 10 |
| B. | 9 |
| C. | 0 |
| D. | 1 |
| Answer» A. 10 | |
| 65. |
When following piece of code is executed, what happens?b = 3; a = b++; |
| A. | a contains 3 and b contains 4 |
| B. | a contains 4 and b contains 4 |
| C. | a contains 4 and b contains 3 |
| D. | a contains 3 and b contains 3 |
| Answer» A. a contains 3 and b contains 4 | |
| 66. |
In case of arguments passed by values when calling a function such as z=addidion(x,y), |
| A. | Any modifications to the variables x & y from inside the function will not have any effect outside the function. |
| B. | The variables x and y will be updated when any modification is done in the function |
| C. | The variables x and y are passed to the function addition |
| D. | None of above are valid. |
| Answer» A. Any modifications to the variables x & y from inside the function will not have any effect outside the function. | |
| 67. |
How many times is a do while loop guaranteed to loop? |
| A. | 0 |
| B. | Infinitely |
| C. | 1 |
| D. | variable |
| Answer» C. 1 | |
| 68. |
Which of the following is not a valid relational operator? |
| A. | == |
| B. | => |
| C. | >= |
| D. | >= |
| Answer» B. => | |
| 69. |
The result of a Relational operation is always |
| A. | either True or False |
| B. | is less than or is more than |
| C. | is equal or less or more |
| D. | All of these |
| Answer» A. either True or False | |
| 70. |
A ‐‐‐‐‐‐‐‐ is a memory portion of memory to store a determined value. |
| A. | Constant |
| B. | Variable |
| C. | Keyword |
| D. | Separators |
| Answer» B. Variable | |
| 71. |
An identifier may ‐‐‐‐‐‐‐‐ |
| A. | Strings, that varies at program execution. |
| B. | Those numbers, that is frequently required in programs. |
| C. | The name of a variable. |
| D. | None of these |
| Answer» C. The name of a variable. | |
| 72. |
The visibility of variables inside a structure is |
| A. | Private |
| B. | Public |
| C. | Protected |
| D. | None of these |
| Answer» B. Public | |
| 73. |
‐‐‐‐‐‐‐ are used for comparing two conditions or to write a compound condition. |
| A. | Relational operators |
| B. | Ternary operator |
| C. | Conditional operator |
| D. | Logical operator |
| Answer» D. Logical operator | |
| 74. |
‐‐‐‐‐ statement is used to print a blank line in CPP program |
| A. | “\n” |
| B. | endl |
| C. | Both ‘a’ and ‘b’ |
| D. | None of these |
| Answer» C. Both ‘a’ and ‘b’ | |
| 75. |
int d=int (a) + int (b);This statement is an example of ‐‐‐‐‐‐‐ |
| A. | Implicit conversion |
| B. | Explicit conversion |
| C. | Internal conversion |
| D. | External conversion |
| Answer» B. Explicit conversion | |
| 76. |
Within a switch statement |
| A. | Continue can be used but Break cannot be used |
| B. | Continue cannot be used but Break can be used |
| C. | Both Continue and Break can be used |
| D. | Neither Continue nor Break can be used |
| Answer» B. Continue cannot be used but Break can be used | |
| 77. |
Strings are character arrays. The last index of it contains the null‐terminated character |
| A. | \n |
| B. | \t |
| C. | \0 |
| D. | \1 |
| Answer» C. \0 | |
| 78. |
Observe following function declaration and choose the best Ans:: int divide ( int a, int b = 2 ) |
| A. | Variable b is of integer type and will always have value 2 |
| B. | Variable a and b are of int type and the initial value of both variables is 2 |
| C. | Variable b is international scope and will have value 2 |
| D. | Variable b will have value 2 if not specified when calling function |
| Answer» D. Variable b will have value 2 if not specified when calling function | |
| 79. |
Arguments of a functions are separated with |
| A. | comma (,) |
| B. | semicolon (;) |
| C. | colon (:) |
| D. | None of these |
| Answer» A. comma (,) | |
| 80. |
Variables inside parenthesis of functions declarations have _____ level access. |
| A. | Local |
| B. | Global |
| C. | Module |
| D. | Universal |
| Answer» A. Local | |
| 81. |
‐‐‐‐‐‐‐‐‐‐‐ Statement used to branch unconditionally from one point to another in the program. |
| A. | Jump |
| B. | goto |
| C. | break |
| D. | exit(0) |
| Answer» B. goto | |
| 82. |
A white space is : |
| A. | blank space |
| B. | new line |
| C. | tab |
| D. | all of the above |
| Answer» D. all of the above | |
| 83. |
Which of the following statements are true in c++? |
| A. | Classes cannot have data as public members. |
| B. | Structures cannot have functions as members. |
| C. | Structures cannot have functions as members. |
| D. | None of these. |
| Answer» B. Structures cannot have functions as members. | |
| 84. |
What will be the values of x, m and n after the execution of the following statements? int x, m, n; m = 10; n = 15; x = ++m + n++; |
| A. | x=25, m=10, n=15 |
| B. | x=26, m=11, n=16 |
| C. | x=27, m=11, n=16 |
| D. | x=27, m=10, n=15 |
| Answer» B. x=26, m=11, n=16 | |
| 85. |
Consider the following statements: int x = 22,y=15; x = (x>y) ? (x+y) : (x‐y); What will be the value of x after executing these statements? |
| A. | 22 |
| B. | 37 |
| C. | 7 |
| D. | Error. Cannot be executed |
| Answer» B. 37 | |
| 86. |
‐‐‐‐‐‐‐ is the actual body of the function |
| A. | Library function |
| B. | Function call |
| C. | Function definition |
| D. | Function declaration |
| Answer» C. Function definition | |
| 87. |
Which of the following is an exit controlled loop? |
| A. | While |
| B. | For |
| C. | Switch |
| D. | do…. While |
| Answer» D. do…. While | |
| 88. |
‐‐‐‐‐ is a function that is expanded in line when it is invoked. |
| A. | Library function |
| B. | User defined function |
| C. | Inline function |
| D. | None of these |
| Answer» C. Inline function | |
| 89. |
The qualifier ‐‐‐‐‐‐ tells the compiler that the function should not modify the argument. |
| A. | Const |
| B. | Static |
| C. | Constant |
| D. | Inline |
| Answer» A. Const | |
| 90. |
‐‐‐‐‐‐ refers to the use of the same thing for different purpose. |
| A. | Function declaration |
| B. | Overloading |
| C. | Function calling |
| D. | Prototyping |
| Answer» B. Overloading | |
| 91. |
The functions declared inside the class is known as ‐‐‐‐‐‐‐‐ |
| A. | Data members |
| B. | Library functions |
| C. | Member functions |
| D. | User defined functions |
| Answer» C. Member functions | |
| 92. |
The binding of data and functions together into a single class‐type is referred to as ‐‐‐‐‐‐‐‐ |
| A. | Abstraction |
| B. | Encapsulation |
| C. | Inheritance |
| D. | Polymorphism |
| Answer» B. Encapsulation | |
| 93. |
When a function is defined inside a class,it is treated as ‐‐‐‐‐‐‐ |
| A. | Inline function |
| B. | Inside definition |
| C. | Inline definition |
| D. | Data function |
| Answer» A. Inline function | |
| 94. |
Calling a member function by using its name from another member function of the same class is known as ‐‐‐‐‐‐ |
| A. | Grouping of member function |
| B. | Member function group |
| C. | Nesting of member function |
| D. | Nested group of member function |
| Answer» C. Nesting of member function | |
| 95. |
‐‐‐‐‐ function can only be called by another function that is a member of its class. |
| A. | Member function |
| B. | Private member function |
| C. | Nested member function |
| D. | Public member function |
| Answer» B. Private member function | |
| 96. |
‐‐‐‐‐‐‐‐ are normally used to maintain values common to the entire class. |
| A. | Dynamic variables |
| B. | Static variables |
| C. | Private variables |
| D. | Public variables |
| Answer» B. Static variables | |
| 97. |
A static variable is initialized to ‐‐‐‐‐when the first object of its class is created. |
| A. | 1 |
| B. | Null |
| C. | 0 |
| D. | None of these |
| Answer» C. 0 | |
| 98. |
The same function name having different tasks |
| A. | Function overloading |
| B. | Constructor overloading |
| C. | Polymorphism |
| D. | Operator overloading |
| Answer» A. Function overloading | |
| 99. |
The main function having argument |
| A. | Default Argument |
| B. | Command line argument |
| C. | Const argument |
| D. | Constructor overloading |
| Answer» B. Command line argument | |
| 100. |
A function calling itself |
| A. | Inline function |
| B. | Static function |
| C. | Friend function |
| D. | Recursion |
| Answer» D. Recursion | |
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