CS304 Midterm Online Quiz

CS304-Midterm

1 / 50

What problem(s) may occur when we copy objects without using deep copy constructor?

Dangling pointer

System crash

All of the given

Memory Leakage

2 / 50

_______ is a relationship

encapsulation

abstraction

Inheritance

Polymarphism

3 / 50

We capture the object attributes and behavior in Object Oriented programming using---------------

Data Members

Instances

Class

Function

4 / 50

The life of sub object is not dependant on the life of master class in ___________

Aggregation

Separation

Composition

None of the given

5 / 50

Suppose that the Test class does not have an overloaded assignment operator. What happens when an assignment a=b; is given for two Test objects a and b?

Run-time error

The copy constructor is used

Compiler error

The automatic assignment operator is used

6 / 50

The members of a class that can be accessed without creating the object of the class is called

Static

Public Member

Data Member

Private member

7 / 50

Which of the following are an advantage of OOP?

It provides an ability to create one user defined data type by extending the other

OOP makes it easy to re-use the code

It provides the facility of defining Abstract data types through which real world entities can be defined better

All of the given options

8 / 50

__________ provide the facility to access the data member

inline function

None of the given

private function

accesser function

9 / 50

Which part of an object exhibits its state?

Any private part

Operations

Any public part

Data

10 / 50

a’A static member function can be called, even when a class is not __________

Define

Declared

InstantiatedC++ How to Program, Fifth Edition

Called

11 / 50

We can get only one unique value which can be used by all the objects of that class by the use of,

instance variables

data members

static variables

dynamic variables

12 / 50

The compiler won’t object if you overload the * operator to perform division

FALSE

TRUE

13 / 50

A member function having the same name as that of a class and a ~ sign with it is called,

Getter

Destructor

Setter

Constructor

14 / 50

Identify which of the following overloaded operator function’s declaration is appropriate for the given call? Rational_number_1 + 2.325 Where Rational_number_1 is an object of user defined class Rational_number

Rational_number operator+( Rational_number & obj);

Rational_number operator+(double& obj);

Rational_number operator+(Rational_number &obj, double& num);

operator+(double& obj);

15 / 50

Your chief Software designer has shown you a sketch of the new Computer parts system she is about to create. At the top of the hierarchy is a Class called Computer and under this are two child classes. One is called LinuxPC and one is called WindowsPC. The main difference between the two is that one runs the Linux operating System and the other runs the Windows System (of course another difference is that one needs constant re-booting and the other runs reliably). Under the WindowsPC are two Sub classes one called Server and one Called Workstation. How might you appraise your designers work?

Ask for a re-design of the hierarchy with changing the Operating System to a field rather than

Ask for the option of WindowsPC to be removed as it will soon be obsolete

Change the hierarchy to remove the need for the superfluous Computer Class

Give the goahead for further design using the current scheme

16 / 50

Suppose there is an object of type Person, which of the following can be considered as one of its attributes

Both Name and Age

Work()

Age

Name

17 / 50

A C++ class is similar to --------------------

Structure

Library File

Header File

None of the given

18 / 50

Which one of the following terms best represents the statement given below, ” Hiding details of an object from the other parts of a program”

Compilation

Obfustication

Data Mining

Encapsulation

19 / 50

Rational_number operator+( Rational_number & obj);

operator+(double& obj);

Rational_number operator+(Rational_number &obj, double& num);

Rational_number operator+(double& obj);

20 / 50

__________ satisfy the condition of polymorphism

Diamond

all of the given

Coal

Carbon

21 / 50

Suppose that the Test class does not have an overloaded assignment operator. What happens when an assignment a=b; is given for two Test objects a and b?

Run-time error

The automatic assignment operator is used

The copy constructor is used

Compiler error

22 / 50

___________, which means if A declares B as its friend it does NOT mean that A can access private data of B. It only means that B can access all data of A

Friendship is one way only

Friendship is two way only

Any kind of friendship

NO Friendship between classes

23 / 50

operator+(double& obj);

Rational_number operator+(Rational_number &obj, double& num);

Rational_number operator+(double& obj);

Rational_number operator+( Rational_number & obj);

24 / 50

this pointers are not accessible for static member functions

TRUE

FALSE

25 / 50

A generic class showing all the common attributes and a behavior of other classes represents a very important feature in oop called --------

Abstraction

Encapsulation

Polymarphism

Inheritance

26 / 50

Which of the following may not be an integral part of an object?

Behavior

Protected data members

State

All of given

27 / 50

Which one of the following is not an object association?

Inheritance

Simple Assocation

Aggregation

Composition

28 / 50

In order to free the memory occupied by the object, we use -------------

Constructor

Deep Copy

Shallow Copy

Destructor

29 / 50

Which operator can not be overloaded?

Script operator ( [] )

Conditional operator (? : )

Assignment operator ( = )

The relation operator ( >= )

30 / 50

We achieve independence of internal implementation from its external interface through-----------

Encapsulation

Information Hiding

Abstraction

both encapsulation and information hiding

31 / 50

For classes with common behavior, you can save effort by placing the common behavior in a __________

Base class

Deprived Class

Named class

Derived Class

32 / 50

_______ remain in memory even when all objects of a class have been destroyed

Instance variable

Primitive variables

Static variables

None of given

33 / 50

Which one is not keyword in C++?

None of given

operator

B_op

const

34 / 50

The >= operator can be overloaded.

TRUE

FALSE

35 / 50

If you define a vector v with the default constructor, and define another vector w with a one-argument constructor to a size of 11, and insert 3 elements into each of these vectors with push_back(), then the size() member function will return ______ for v and _____ for w

0 for v and 0 for w

11 for v and 3 for w

0 for v and 3 for w

3 for v and 11 for w

36 / 50

Classes like TwoDimensionalShape and ThreeDimensionalShape would normally be concrete, while classes like Sphere and Cube would normally be abstract

FALSE

TRUE

37 / 50

Using encapsulation we can achieve

Least interdependencies among modules

Implementation independence

Information hiding

All of given options

38 / 50

template <> class Vector { } This is an example of partial specialization

TRUE

FALSE

39 / 50

Friend class and friend function can be used as an alternate to each other

TRUE

FALSE

40 / 50

The return type of a constructor is of -------------

Chracter

Integer

Double

41 / 50

The find() algorithm

takes iterators as its first two arguments.

takes container elements as its first two arguments

finds a container that matches a specified container

finds matching sequences of elements in two containers

42 / 50

What a derived class can add?

New data members

New constructors and destructor

New member functions and New friend functions

All of given

43 / 50

The statement objA=objB; will cause a compiler error if the objects are of different classes

FALSE

TRUE

44 / 50

Which operator can not be overloaded?

Script operator ( [] )

Conditional operator (? : )

Assignment operator ( = )

The relation operator ( >= )

45 / 50

The ________ relationship indicates that an object contains other objects

None of given

‘has-a’

‘be-

‘is-a’

46 / 50

Which of the following operators always takes no argument if overloaded?

47 / 50

Which operator can not be overloaded?

The relation operator ( >= )

Assignment operator ( = )

Conditional operator (? : )

Script operator ( [] )

48 / 50

Inheritance is a way to - Please choose one

make general classes into more specific classes.

providing class growth through natural selection

pass arguments to objects of classes

improve data hiding and encapsulation

49 / 50

The >= operator can be overloaded

FALSE

TRUE

50 / 50

Which one of the following features of OOP is used to derive a class from another?

Polymorphism

Encapsulation

Inheritance

Data hiding

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