McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Programming Languages , Master of Science in Software Engineering (MSc SE) .
| 51. |
The statement i++; is equivalent to |
| A. | i = i + i; |
| B. | i = i + 1; |
| C. | i = i – 1; |
| D. | i –; |
| Answer» A. i = i + i; | |
| 52. |
In C language, a hexadecimal number is represented by writing |
| A. | x |
| B. | xo |
| C. | ox |
| D. | h |
| Answer» B. xo | |
| 53. |
Which of the following library function below by default aborts the program? |
| A. | terminate() |
| B. | end() |
| C. | abort() |
| D. | exit() |
| Answer» C. abort() | |
| 54. |
If a member needs to have unique value for all the objects of that same class, declare the member as |
| A. | global variable outside class |
| B. | local variable inside constructor |
| C. | static variable inside class |
| D. | dynamic variable inside class |
| Answer» A. global variable outside class | |
| 55. |
Value of ix+j, if i,j are integer type and ix long type would be |
| A. | integer |
| B. | float |
| C. | long integer |
| D. | double percision |
| Answer» B. float | |
| 56. |
Which of the following below can perform conversions between pointers to related classes? |
| A. | cast_static |
| B. | dynamic_cast |
| C. | static_cast |
| D. | cast_dynamic |
| Answer» C. static_cast | |
| 57. |
How do we define a constructor? |
| A. | x~() {} |
| B. | x() {}~ |
| C. | x() ~{} |
| D. | ~x() {} |
| Answer» C. x() ~{} | |
| 58. |
Vtables |
| A. | creates a static table per class |
| B. | creates a static table per object |
| C. | creates a dynamic table per class |
| D. | creates a dynamic table per object |
| Answer» D. creates a dynamic table per object | |
| 59. |
When class B is inherited from class A, what is the order in which the constructers of those classes are called |
| A. | class a first class b next |
| B. | class b first class a next |
| C. | class b’s only as it is the child class |
| D. | class a’s only as it is the parent class |
| Answer» A. class a first class b next | |
| 60. |
Which of the following is the most general exception handler that catches exception of any type? |
| A. | catch(std::exception) |
| B. | catch(std::any_exception) |
| C. | catch(…) |
| D. | catch() |
| Answer» A. catch(std::exception) | |
| 61. |
Which of the following is the most general exception handler that catches exception of ‘any type’? |
| A. | catch(std::exception) |
| B. | catch(std::any_exception) |
| C. | catch(…) |
| D. | catch() |
| Answer» C. catch(…) | |
| 62. |
In a group of nested loops, which loop is executed the most number of times? |
| A. | the outermost loop |
| B. | the innermost loop |
| C. | all loops are executed the same number of times |
| D. | cannot be determined without knowing the size of the loops |
| Answer» C. all loops are executed the same number of times | |
| 63. |
What is the Difference between struct and class in terms of Access Modifier? |
| A. | by default all the struct members are private while by default class members are public. |
| B. | by default all the struct members are protected while by default class members are private. |
| C. | by default all the struct members are public while by default class members are private. |
| Answer» B. by default all the struct members are protected while by default class members are private. | |
| 64. |
Inline functions are invoked at the time of |
| A. | run time |
| B. | compile time |
| C. | depends on how it is invoked |
| D. | both b and c above |
| Answer» C. depends on how it is invoked | |
| 65. |
What is shallow copy? |
| A. | a shallow copy creates a copy of the dynamically allocated objects too. |
| B. | a shallow copy just copies the values of the data as they are. |
| C. | a shallow copy creates a copy of the statically allocated objects too |
| D. | both b and c above |
| Answer» B. a shallow copy just copies the values of the data as they are. | |
| 66. |
What is deep copy? |
| A. | a deep copy creates a copy of the dynamically allocated objects too. |
| B. | a deep copy just copies the values of the data as they are. |
| C. | a deep copy creates a copy of the statically allocated objects too |
| D. | both b and c above |
| Answer» B. a deep copy just copies the values of the data as they are. | |
| 67. |
Which of the following below is /are a valid iterator type? |
| A. | input iterator |
| B. | backward iterator |
| C. | forward iterator |
| D. | both a and c above |
| Answer» A. input iterator | |
| 68. |
What defines a general set of operations that will be applied to various types of data? |
| A. | template class |
| B. | function template |
| C. | class template |
| D. | both a and c above |
| Answer» D. both a and c above | |
| 69. |
Under which of the following circumstances, synchronization takes place? |
| A. | when the file is closed |
| B. | when the buffer is empty |
| C. | explicitly, with manipulators |
| D. | both a and c |
| Answer» B. when the buffer is empty | |
| 70. |
Which of the following functions below can be used Allocate space for array in memory? |
| A. | calloc() |
| B. | malloc() |
| C. | realloc() |
| D. | both a and b |
| Answer» D. both a and b | |
| 71. |
Statement scanf(“%d”,80); |
| A. | assign an integer to variable i |
| B. | give an error message |
| C. | print the value of i |
| D. | assign an float to variable i |
| Answer» A. assign an integer to variable i | |
| 72. |
STL is based on which of the following programming paradigms? |
| A. | structured programming |
| B. | object oriented programming (oop) |
| C. | functional programming |
| D. | aspect oriented programming (aop) |
| Answer» A. structured programming | |
| 73. |
Which of the following is not a component of file system |
| A. | access method |
| B. | auxiliary storage management |
| C. | free integrity mechanism |
| D. | none of the above |
| Answer» C. free integrity mechanism | |
| 74. |
If there is more than one statement in the block of a for loop, which of the following must be placed at the beginning and the ending of the loop block? |
| A. | parentheses ( ) |
| B. | braces { } |
| C. | brackets [ ]. |
| D. | arrows < > |
| Answer» B. braces { } | |
| 75. |
Which of the following members do get inherited but become private members in child class |
| A. | public |
| B. | private |
| C. | protected |
| D. | all the above |
| Answer» B. private | |
| 76. |
Which looping process is best used when the number of iterations is known? |
| A. | for |
| B. | while |
| C. | do-while |
| D. | all looping processes require that the iterations be known |
| Answer» C. do-while | |
| 77. |
In a C language ‘3’ represents |
| A. | a digit |
| B. | an integer |
| C. | a character |
| D. | a word |
| Answer» A. a digit | |
| 78. |
Which of the following is the most common way of implementing C++? |
| A. | c++ programs are directly compiled into native code by a compiler |
| B. | c++ programs are first compiled to intermediate code by a compiler and then executed by a virtual machine |
| C. | c++ programs are interpreted by an interpreter |
| D. | a c++ editor directly compiles and executes the program |
| Answer» C. c++ programs are interpreted by an interpreter | |
| 79. |
Which of the following operators can be implemented as a nonmember operator? |
| A. | - (addition operator) |
| B. | () (function call operator) |
| C. | [. (array access operator) |
| D. | + (addition operator) |
| Answer» C. [. (array access operator) | |
| 80. |
What is the implicit pointer that is passed as the first argument for nonstatic member functions? |
| A. | ‘self’ pointer |
| B. | std::auto_ptr pointer |
| C. | ‘myself’ pointer |
| D. | ‘this’ pointer |
| Answer» D. ‘this’ pointer | |
| 81. |
Which of the following operators can be overloaded? |
| A. | . (dot or member access operator) |
| B. | & (address-of operator) |
| C. | sizeof operator |
| D. | ?: (conditional operator) |
| Answer» D. ?: (conditional operator) | |
| 82. |
Which of the following operators below allow to define the member functions of a class outside the class? |
| A. | :: |
| B. | ? |
| C. | ?? |
| D. | % |
| Answer» D. % | |
| 83. |
Which of the following is not a valid conditional inclusions in preprocessor directives |
| A. | #ifdef |
| B. | #ifundef |
| C. | #endif |
| D. | #elif |
| Answer» A. #ifdef | |
| 84. |
Value of a in a = (b = 5, b + 5); is |
| A. | junk value |
| B. | syntax error |
| C. | 5 |
| D. | 10 |
| Answer» B. syntax error | |
| 85. |
Minimum number of temporary variable needed to swap the contents of 2 variables is: |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 0 |
| Answer» D. 0 | |
| 86. |
How to declare operator function? |
| A. | operator operator sign |
| B. | operator |
| C. | operator sign |
| D. | none of the mentioned |
| Answer» A. operator operator sign | |
| 87. |
xample obj = new Example (1,2,3); |
| A. | constructor 2 |
| B. | constructor 4 |
| C. | constrcutor 1 |
| D. | type mismatch error |
| Answer» B. constructor 4 | |
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