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CS304 Solved MCQs
| SR NO | MCQS QUESTION | ANSWER |
| 1 | In expression c1*c2+c3-c4 which of the following will be executed in first order | C1*c2 |
| 2 | Inheritance is a way to | Add features to existing classes without rewriting them |
| 3 | ————— represent “IS A ”relationship | Inheritance |
| 4 | Constructor without any parameter is called: | Default constructor |
| 5 | Which of the following stores the address of a variable? | Pointer |
| 6 | A Post-fix unary operator is implemented in C ++ using Member function with | 1 dummy int argument |
| 7 | minimum classes required in a program for implementing multiple inheritance | 3 |
| 8 | Which of the following statement(s) describe constant member functions? | All of the given option |
| 9 | composition is a strong relation relationship because | Composed object cant exist independency |
| 10 | How many interactions are there in the following scenario Imran has the car. he drive the car and car has four wheels and doors | 3 |
| 11 | if we extend our model ,and the rest of the model is not affected then it is called—— | Flexibility |
| 12 | choose correct declaration of overload*=1 operator for class complex as Member function | Complex and operator*=(const complex & c) |
| 13 | Consider the following class A{int a,b,c; public: A():B(10),C(0)a(7) }; | A,b,c |
| 14 | Class is a blue print of | Objects |
| 15 | Suppose we have a class student which of the following statement is correctly declaring the pointer to the object of student class? | Student*object |
| 16 | In c++ composition is relationship between ——-and——objects | Whole, part |
| 17 | Which of the following Depicts the proper definition of class? | a class is description of a kind of object |
| 18 | in class attributes are represented by —-and—— respectively | data member, Member function |
| 19 | which of the following represents the two Association | Employee works for the company |
| 20 | Entities in OO model are represented by | Rectangle |
| 21 | Which of the following features of OOP is used to derive a class from another? | Inheritance |
| 22 | In C ++ which of the following is defined as a stream insertion operator? | << |
| 23 | choose the correct declaration of overloaded equality (==)operator for class string as a Member function | Bool operator==(const string and s) |
| 24 | —- is the relationship between the part object and the whole object | Composition |
| 25 | object hides its information from others this concept is known as | information hiding |
| 26 | the concept of derived classes is involved in | Inheritance |
| 27 | abstraction provides information according to | user perspective |
| 28 | which of the following is not an object Association | Inheritance |
| 29 | which of the following classes are used by amphibious vehicle to inherit characteristics | both land and water vehicle |
| 29 | object data includes | both states and attributes of an object |
| 30 | choose correct declaration of overloaded inequality operator for class string as non member friend function | friend pool operator !=(const string &s1,const string &2) |
| 31 | How many objects of a given class may be constructed in an application? | as many as the application ask for |
| 32 | how many objects of a given class may be constructed in an application | as many as the application ask for |
| 33 | Which of the following statements describe constant member functions? | all of the given option |
| 34 | student *ptr=new student(” Ali”); is an example of | static memory allocation |
| 35 | in——- base class can be replaced by the derived class | extension |
| 36 | Which of the following is a correct way of declaring constant variable ROLLNO? | cosnst int Roll no; |
| 37 | which of the following operator doesn’t take argument hit overloaded | none of the given choices |
| 38 | which of the following is part of the Class diagram | all of the given option |
| 39 | a child inherits characteristic from its | parent |
| 40 | which of the following issues can be caused by the use of friend function | programming Bugs |
| 41 | which of the following is not true about constant number function | all of the given option |
| 42 | Which one is not the main features of object oriented programming? | exception handling |
| 43 | ||
| 44 | in object oriented programming, objects communicate with each other through | messages |
| 45 | static data member is declared | inside the class |
| 46 | the concept of derived classes is involved in | inheritance |
| 47 | Which of the following can we attribute of an object “Ali”? | address |
| 48 | Which of the following keyword tell the compiler to substitute the code within the function definition for every instance of a function call? | inline |
| 49 | inheritance is the relationship between | classes |
| 50 | how many objects are involved in the binary Association | 2 |
| 51 | all objects of same class has ——–attributes | same |
| 52 | which of the following concept is more close to encapsulation | information hiding |
| 53 | member initialization list is used to | initialize data member |
| 54 | aggregation between objects show that | objects have week relationship |
| 55 | there is /are ways to create user defined types for objects in C ++ | two |
| 56 | composition is a strong relationship because: | composed object can not exist independently |
| 57 | in polymorphism messenger can be interpreted in different ways depending upon the—– class | receiver |
| 58 | which of the following is most suitable advantage of information hiding | simplifies the model |
| 59 | the process of extracting common characteristics from two or More classes and combining them into a generalized superclass is called | Generalization |
| 60 | ——- operator is used to create objects at run time | new |
| 61 | choose the correct option to declare an overloaded Stream insertion operator for userdefind class “string” as a non-member friend function | friend out stream and operator<<(ostream and os,const string & s) |
| 62 | static data member is declared | inside the class |
| 63 | an instance of user defined type is called | object |
| 64 | which of the following is true about constructor | all of the given option |
| 65 | Which of the following correct way of declaring constant variable ROLLNO? | const int ROLLNO; |
| 66 | inheritance is shown by | filled arrow |
| 67 | which of the following operators operate on one operand | unary operator |
| 68 | which of the following will happen when a constant function tried to change the value of data members of the class | compile time error will occur |
| 69 | in object oriented programming, objects communicate with each other through— | messages |
| 70 | How the information hidden within an object can be accessed? | through its interface |
| 71 | object orientation approach can be achieved using object and their——- | interactions |
| 72 | constructors have —– return type | no |
| 73 | which of the following is an example of unary operator | increment operator(++) |
| 74 | memory is allocated to non-static members only when | object is created |
| 75 | in class B inherit from class A which of the following is child class | class B |
| 76 | the—— tells the compiler what task the function will be performing | function definition |
| 77 | Consider the statement” room has chair” which of the following type of Association exists between whom and chair? | aggregation |
| 78 | how many objects are involved in the N-ary Association | more than 3 |
| 79 | deconstruct is a function which has the same name as that of class but starts with a—– sign | ~ |
| 80 | which of the following is a tangible entity | car |
| 81 | member initializer list is used to | initialize data members |
| 82 | we can get the address of variable stored in pointer using—– | & symbol |
| 83 | two sentence object oriented programming book in bookshelf is an example of | aggregation |
| 84 | which of the following best defines the obstruction | hide the implementation and show current perspective |
| 85 | which of the following define default constructor 5 class student | student(){//..} |
| 86 | object data includes | both state and attributes of an object |
| 87 | minimum classes required in a program for implementing multiple inheritance | 3 |
| 88 | information hiding can be achieved through——- | encapsulation, abstraction |
| 89 | compiler generated defaulter structure is called—– hand user written default constructor is called—- | implicit, explicit |
| 90 | which of the following is true about constructor | all of the given option |
| 91 | In which of the following different forms office single entity exist? | polymorphism |
| 92 | data members of a class student can be: | all of the given option |
| 93 | the—– turn off the compiler what does the function will be performing | function definition |
| 94 | Suppose a class does not have any constructor what will happen when an object of this class is created? | compiler will call implicit default constructor |
| 95 | how can we differentiate between constructor and destructor | destructor are preceded with a Tilda(~) symbol, and constructor are not preceded with any symbol |
| 96 | —- is used for hiding the details of an object from the other parts of a program | encapsulation |
| 97 | Class diagram include | class name, attributes, operation |
| 98 | through interface was access objects——– | behavior |
| 99 | composition is a strong relationship because | compose object cannot exist independently |
| 100 | copy constructor is called when: | an object is created in term of Preexisting object |
| 101 | choose the correct option to declare an overloaded stream insertion operator for a user defined class string as a non-Member friend function | friend ostream & operator(ostream &os.const string &s) |
| 102 | a post-fix unary operator implemented in C plus plus using non Member function with—- arguments | two |
| 103 | in class attributes and behaviors are represented by—- and— respectively | data members, member functions |
| 104 | which of the following best describes the relationship between book and book chapter classes | composition |
| 105 | which of the following is true about destructor | all of the given option |
| 106 | in composition—– are called from composing objects to composed subjects | destructors |
| 107 | which of the following can be used an alternative to Static members | Global variables |
| 108 | which of the following statement is true about static function of a class | it is used to access static data members |
| 109 | which of the following operator does not take any arguments if overloaded | none of the given choices |
| 110 | what is the output of the following code int main(){int cost x=10;cout<<++x;return0;} | error |
| 111 | abstraction includes——- | relevant information |
| 112 | Which of the following can be the behavior of an object “Usman”? | eat |
| 113 | a class defined within another class is | nested class |
| 114 | when an object is initialized, is automatically called by the compiler | constructor |
| 115 | the compiler treats the Member function of a class as | inline function |
| 116 | an object has attributes operation ,and——- | unique identity |
| 117 | Which of the following is not an access specifier in C ++? | hidden |
| 118 | which of the following parts of an object exhibits its state | data |
| 119 | —- is the relationship between the part object and the whole object | composition |
| 120 | how can we identify classes from a given problem statement | by extracting nouns from problem statement |
| 121 | what “friend” should be placed in | function declaration |
| 122 | generalization is——– approach | bottom-up |
| 123 | static data members can be accessed through——– | dot operator and scope resolution operator |
| 124 | composition age—– and aggregation is——- relationship | strong, weak |
| 125 | suppose there is an object of type person, which of the following can be considered as one of its attributes | name |
| 126 | Which of the following depicts the proper definition of class? | a class is a description of a kind of object |
| 127 | a child inherits characteristics from its——- | parent |
| 128 | the car is composed of wheels what is the relationship between car and wheels? | composition |
| 129 | —— is creating objects of one class inside another class | composition |
| 130 | the other name of specialization is——- | restriction |
| 131 | suppose a is an int type static data member class test then which of the following is correct way of initialization the static variable outside the class test | int test::a=0 |
| 132 | Which of the following stores the address of variable? | Pointer |
| 133 | ||
| 134 | ||
| 135 | static data member is declared | inside the class |
| 136 | polymorphism makes the system | all of the given option |
| 137 | which of the following statement best describes the constructor | constructor is used to initialize the data members of a class |
| 138 | data member(s) of a class student can be | all of the given option |
| 139 | which of the following is a strong relationship | composition |
| 140 | all objects of same class has——- attributes | same |
| 141 | in C ++ composition is a relationship between—-and—- objects | whole, part |
| 142 | suppose 12 class string assignment operator is overloaded with following declaration void operator=(const string &); what will happen when we will write following statement in main() str=str2=str3;where,str1.str2,str3 are object of class string | compiler will generate compile time error |
| 143 | in class B inherits from class A then it contains all characteristics of—- | class A |
| 144 | which of the following is not an example of multiple inheritance | car |
| 145 | which of the following can be created without any object of a class? | static data members |
| 146 | consider the following code segment class test{int a;int b;int c;} | junk value,5, junk value |
| 147 | object orientation approach can be achieved using objects and their—– | interactions |
| 148 | member functions defined inside a class declaration are——- by default | private |
| 149 | how can we identify classes from a given problem statement | by extracting nouns from problem statement |
| 150 | which of the following statement is not true about static variable of a class? | static variable belongs to particular instance of a class |
| 151 | there are—— types of constructor in C++ | 3 |
| 152 | statement yasir is a friend of Ali and Ali is a friend of yasir is an example of | two way Association |
| 153 | this pointer cannot be passed implicitly to——– functions | static member |
| 154 | which of the following issues can be caused by the use of friend function | all of the given |
| 155 | in—— send a message does not need to know exact class of the receiver | none of the given option |
| 156 | minimum classes required in a program for implementing multiple inheritance | 3 |
| 157 | ——-Associates the object of the exact two classes | binary Association |
| 158 | main characteristics of information hiding is | keep the model simple |
| 159 | static data member is declared | inside the class |
| 160 | in expression b=c/d, the arity of division(/) operator is | 2 |
| 161 | we can allocate dynamic memory in C ++ through operator | new |
| 162 | Which of the following is true about accessor functions? | all of the given option |
| 163 | in—- base class cannot always be replaced by the derived class | specialization |
| 164 | abstraction help to | reduce the complexity |
| 165 | relationship in which child object gets destroyed if parent object is destroyed | composition |
| 166 | object oriented programming is better than procedural programming because: | it is more close to reality |
| 167 | The derived class inherits behavior from the base class and also exhibits its own behavior. this concept is known as— | Overriding |
| 168 | the other name of subtyping is | Extension |
| 169 | A good model is—— related to life problem | closely |
| 170 | in generalization general class represents the ——– behavior of the class | common |
| 171 | how can we identify from a given problem statement? | by extracting noun from problem statement |
| 172 | which of the following is not a access specifier in C ++ | hidden |
| 173 | in composition—— are called from composing objects to composed objects | destructors |
| 174 | a class have only—- destructor | one |
| 175 | suppose you have following C + + statement int old value=10; int new value=++old value; what will be the value of old value and newValue after executing above statements ? | oldVlue=11,newVlue=11 |
| 176 | in constant Member function the type of this pointer is | constant pointer to constant data |
| 177 | —– is creating objects of one class inside another class | composition |
| 178 | ——– Associates the objects of the exact three classes | ternary Association |
| 179 | generalization is implemented through | inheritance |
| 180 | which of the following is strong relationship | composition |
| 181 | composition is a strong relationship because | composed object cannot exist independently |
| 182 | —– is set of function of an object exposed of other objects | interface |
| 183 | suppose student is a class, which of the following defines constructor with one parameter for class student | student(char*aName); |
| 184 | which of the following is not true about constant Member function | all of the given option |
| 185 | —– define the order of evaluation of an operator is an expression | operator precedence |
| 186 | choose correct declaration of overloaded inequality(!=) operator for class string as non member friend function | friend bool operator!=(const string &s1,cont string &s2) |
| 187 | which of the following is most suitable advantage of information hiding | simplifies the model |
| 188 | a fan has wings, which type of relation exists between fan and Wings in this sentence | composition |
| 189 | multiple inheritance is implemented between class through—— symbol | comma(,) |
| 190 | postfix unary operator is implemented in C ++ using non Member function with arguments | two |
| 191 | Supposed derived class is inherited from base class what happens when a derived class object is created | the constructor of base class exact is executed before the constructor of derived class |
| 192 | assignment operator are | right associative |
| 193 | a postfix unary operator is implemented in C ++ using number function with | 1 dummy int argument |
| 194 | which of the following is true about exception functions | all of the given option |