C++ Language Quiz

(Total Question : 30)

Q.1

Which of the following type of class allows only one object of it to be created?

A. Virtual class

B. Abstract class

C. Singleton class

D. Friend class

Q.2

Which of the following is not a type of constructor?

A. Copy constructor

B. Friend constructor

C. Default constructor

D. Parameterized constructor

Q.3

Which of the following statements is correct?

A. Base class pointer cannot point to derived class.

B. Derived class pointer cannot point to base class.

C. Pointer to derived class cannot be created.

D. Pointer to base class cannot be created.

Q.4

Which of the following concepts means determining at runtime what method to invoke?

A. Data hiding

B. Dynamic Typing

C. Dynamic binding

D. Dynamic loading

Q.5

Which of the following is a mechanism of static polymorphism?

A. Operator overloading

B. Function overloading

C. Templates

D. All of the above

Q.6

Which of the following statement is correct?

A. C++ enables to define functions that take constants as an argument.

B. We cannot change the argument of the function that that are declared as constant.

C. Both A and B.

D. We cannot use the constant while defining the function.

Q.7

Which of the following statement will be correct if the function has three arguments passed to it?

A. The trailing argument will be the default argument.

B. The first argument will be the default argument.

C. The middle argument will be the default argument.

D. All the argument will be the default argument.

Q.8

Which of the following statement is correct?

A. Constructors can have default parameters.

B. Constructors cannot have default parameters.

C. Constructors cannot have more than one default parameter.

D. Constructors can have at most five default parameters.

Q.9

Which of the following function / type of function cannot be overloaded?

A. Member function

B. Static function

C. Virtual function

D. Both B and C

Q.10

Which of the following statement is correct?

A. The order of the default argument will be right to left.

B. The order of the default argument will be left to right.

C. The order of the default argument will be alternate.

D. The order of the default argument will be random.

Q.11

Which of the following statement is correct?

A. A reference is stored on heap.

B. A reference is stored on stack.

C. A reference is stored in a queue.

D. A reference is stored in a binary tree.

Q.12

Which of the following statement is correct about the references?

A. A reference must always be initialized within functions.

B. A reference must always be initialized outside all functions.

C. A reference must always be initialized.

D. Both A and C.

Q.13

A reference is declared using the _____ symbol.

A. &&

B. &

C. ||

D. !

Q.14

Which of the following statement is correct?

A. Once a reference variable has been defined to refer to a particular variable it can refer to any other variable.

B. A reference is indicated by using && operator.

C. Once a reference variable has been defined to refer to a particular variable it cannot refer to any other variable.

D. A reference can be declared beforehand and initialized later.

Q.15

Which of the following statement is correct?

A. A referenced has to be de-referenced to access a value.

B. A referenced does not need to be de-referenced to access a value.

C. A referenced has to be double de-referenced to access a value.

D. Whether a reference should be de-referenced or not depends on the type of the reference.

Q.16

Which of the following statements is incorrect?

A. Friend keyword can be used in the class to allow access to another class.

B. Friend keyword can be used for a function in the public section of a class.

C. Friend keyword can be used for a function in the private section of a class.

D. Friend keyword can be used on main().

Q.17

Which of the following statement is correct regarding destructor of base class?

A. Destructor of base class should always be static.

B. Destructor of base class should always be virtual.

C. Destructor of base class should not be virtual.

D. Destructor of base class should always be private.

Q.18

Which of the following two entities (reading from Left to Right) can be connected by the dot operator?

A. A class member and a class object.

B. A class object and a class.

C. A class and a member of that class.

D. A class object and a member of that class.

Q.19

How can we make a class abstract?

A. By making all member functions constant.

B. By making at least one member function as pure virtual function.

C. By declaring it abstract using the static keyword.

D. By declaring it abstract using the virtual keyword.

Q.20

Which of the following statements is correct when a class is inherited publicly?

A. Public members of the base class become protected members of derived class.

B. Public members of the base class become private members of derived class.

C. Private members of the base class become protected members of derived class.

D. Public members of the base class become public members of derived class.

Q.21

A constructor that accepts __________ parameters is called the default constructor.

A. One

B. Two

C. No

D. Three

Q.22

Can a class have virtual destructor?

A. Yes

B. No

Q.23

Destructor has the same name as the constructor and it is preceded by ______ .

A. !

B. ?

C. ~

D. $

Q.24

For automatic objects, constructors and destructors are called each time the objects

A. enter and leave scope

B. inherit parent class

C. are constructed

D. are destroyed

Q.25

Which constructor function is designed to copy objects of the same class type?

A. Create constructor

B. Object constructor

C. Dynamic constructor

D. Copy constructor

Q.26

Copy constructor must receive its arguments by __________ .

A. either pass-by-value or pass-by-reference

B. only pass-by-value

C. only pass-by-reference

D. only pass by address

Q.27

Constructors __________ to allow different approaches of object construction.

A. cannot overloaded

B. can be overloaded

C. can be called

D. can be nested

Q.28

Which of the following statement is correct?

A. A destructor has the same name as the class in which it is present.

B. A destructor has a different name than the class in which it is present.

C. A destructor always returns an integer.

D. A destructor can be overloaded.

Q.29

Which of the following cannot be declared as virtual?

A. Constructor

B. Destructor

C. Data Members

D. Both A and C

Q.30

Which of the following are NOT provided by the compiler by default?

A. Zero-argument Constructor

B. Destructor

C. Copy Constructor

D. Copy Destructor

Related Quiz

C++ Language Quiz

Q.1

Which of the following type of class allows only one object of it to be created?

Q.2

Which of the following is not a type of constructor?

Q.3

Which of the following statements is correct?

Q.4

Which of the following concepts means determining at runtime what method to invoke?

Q.5

Which of the following is a mechanism of static polymorphism?

Q.6

Which of the following statement is correct?

Q.7

Which of the following statement will be correct if the function has three arguments passed to it?

Q.8

Which of the following statement is correct?

Q.9

Which of the following function / type of function cannot be overloaded?

Q.10

Which of the following statement is correct?

Q.11

Which of the following statement is correct?

Q.12

Which of the following statement is correct about the references?

Q.13

A reference is declared using the _____ symbol.

Q.14

Which of the following statement is correct?

Q.15

Which of the following statement is correct?

Q.16

Which of the following statements is incorrect?

Q.17

Which of the following statement is correct regarding destructor of base class?

Q.18

Which of the following two entities (reading from Left to Right) can be connected by the dot operator?

Q.19

How can we make a class abstract?

Q.20

Which of the following statements is correct when a class is inherited publicly?

Q.21

A constructor that accepts __________ parameters is called the default constructor.

Q.22

Can a class have virtual destructor?

Q.23

Destructor has the same name as the constructor and it is preceded by ______ .

Q.24

For automatic objects, constructors and destructors are called each time the objects

Q.25

Which constructor function is designed to copy objects of the same class type?

Q.26

Copy constructor must receive its arguments by __________ .

Q.27

Constructors __________ to allow different approaches of object construction.

Q.28

Which of the following statement is correct?

Q.29

Which of the following cannot be declared as virtual?

Q.30

Which of the following are NOT provided by the compiler by default?