CS304 Midterm Online Quiz

CS304-Midterm

1 / 50

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

Instances

Function

Class

Data Members

2 / 50

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

Named class

Base class

Derived Class

Deprived Class

3 / 50

In object orientated programming, a class of objects cans _____________ properties from another class of objects

Adopt

Inherit

Borrow

Utilize

4 / 50

__________ satisfy the condition of polymorphism

Diamond

all of the given

Coal

Carbon

5 / 50

Which operator can not be overloaded?

The relation operator ( >= )

Conditional operator (? : )

Assignment operator ( = )

Script operator ( [] )

6 / 50

this pointers are not accessible for static member functions

TRUE

FALSE

7 / 50

An employee working in an organization has 1.Name 2.Past experience 3.Age 4.Relatives 5.Hobbies in spare times Keeping in view the principle of abstraction, which of the above information the company needs to save as employee’s record?

1, 2, 3

2, 4

1,3,5

1,2,3,4

8 / 50

The process of hiding unwanted details from users is called __________

Argumentation

Protection

Encapsulation

Abstraction

9 / 50

A static member function cannot be declared

Explicit

Virtual

Static

Implicit

10 / 50

Static variable can be initialized more than once

FALSE

TRUE

11 / 50

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

FALSE

TRUE

12 / 50

Which construct is the source for the creation of an object?

Delete operator

Destructor of the class

New operator

Constructor of the class

13 / 50

A template provides a convenient way to make a family of

variables and data members

classes and exceptions

functions and classes

programs and algorithms

14 / 50

Constant objects cannot change their state,

FALSE

TRUE

15 / 50

C++ compiler does not allow to dynamically allocate memory for objects

TRUE

FALSE

16 / 50

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

TRUE

FALSE

17 / 50

Which operator can not be overloaded?

Conditional operator (? : )

The relation operator ( >= )

Assignment operator ( = )

Script operator ( [] )

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”

Obfustication

Compilation

Encapsulation

Data Mining

19 / 50

Which one is not keyword in C++?

B_op

operator

const

None of given

20 / 50

Which of the following is not an example of multiple inheritances?----------

Mermaid

None of the given

Woman

Amphibious Vehicle

21 / 50

Suppose you have been given the following design, "A person has a name, age, address and sex. You are designing a class to represent a type of person called a patient. This kind of person may be given a diagnosis, have a spouse and may be alive". Given that the person class has already been created, what of the following would be appropriate to include when you design the patient class?

diagnosis and age

registration date and diagnosis

age and sex

sex and diagnosis

22 / 50

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

Shallow Copy

Destructor

Deep Copy

Constructor

23 / 50

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

Public Member

Static

Data Member

Private member

24 / 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?

Compiler error

The automatic assignment operator is used

Run-time error

The copy constructor is used

25 / 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

operator+(double& obj);

Rational_number operator+(double& obj);

Rational_number operator+( Rational_number & obj);

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

26 / 50

this pointers are not accessible for static member functions

FALSE

TRUE

27 / 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?

Compiler error

The automatic assignment operator is used

The copy constructor is used

Run-time error

28 / 50

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

State

All of given

Protected data members

Behavior

29 / 50

Using encapsulation we can achieve

Least interdependencies among modules

All of given options

Implementation independence

Information hiding

30 / 50

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

TRUE

FALSE

31 / 50

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

Structure

Header File

Library File

None of the given

32 / 50

In order to define a class template, the first line of definition must be:

typename <template T>

template <typename T>

Template Class <ClassName>

Class <Template T>

33 / 50

Which of the following is the best approach if it is required to have more than one functions having exactly same functionality and implemented on different data types?

Encapsulation

Data hiding

Templates

Overloading

34 / 50

__________ provide the facility to access the data member

inline function

private function

None of the given

accesser function

35 / 50

Which part of an object exhibits its state?

Any private part

Any public part

Operations

Data

36 / 50

Inheritance is a way to - Please choose one

pass arguments to objects of classes

make general classes into more specific classes.

providing class growth through natural selection

improve data hiding and encapsulation

37 / 50

Given the following class class Base{ int Age=33; } How you can improve above class with respect to accessing the field Age?

Define the variable Age as protected

Define the variable Age as private

Define the variable Age as private and create a get method that returns it and a set method that updates it

Define the variable Age as protected and create a set method that returns it and a get method that updates it

38 / 50

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

Encapsulation

both encapsulation and information hiding

Information Hiding

Abstraction

39 / 50

Inheritance is a way to

pass arguments to objects of classes

organize data

add features to existing classes without rewriting them

improve data-hiding and encapsulation

40 / 50

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

Inheritance

Encapsulation

Polymorphism

Data hiding

41 / 50

Which operator can not be overloaded?

The relation operator ( >= )

Script operator ( [] )

Conditional operator (? : )

Assignment operator ( = )

42 / 50

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

Age

Both Name and Age

Name

Work()

43 / 50

this pointers are not accessible for static member functions

FALSE

TRUE

44 / 50

Rational_number operator+( Rational_number & obj);

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

Rational_number operator+(double& obj);

operator+(double& obj);

45 / 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

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

Give the goahead for further design using the current scheme

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

46 / 50

A generalization-specialization relation between classes are implemented using

inheritance

data hiding

encapsulation

friend classes

47 / 50

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

FALSE

TRUE

48 / 50

Consider the code below, class Fred { public: Fred(); ... }; int main() { Fred a[10]; Fred* p = new Fred[10]; ... } Select the best option,

Fred a[10]; calls the default constructor 11 times Fred* p = new Fred[10]; calls the default constructor 11 times

Produce an error

Fred a[10]; calls the default constructor 10 times Fred* p = new Fred[10]; calls the default constructor 10 times

Fred a[10]; calls the default constructor 09 times Fred* p = new Fred[10]; calls the default constructor 10 times

49 / 50

Which operator can not be overloaded?

Assignment operator ( = )

Script operator ( [] )

The relation operator ( >= )

Conditional operator (? : )

50 / 50

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

All of the given

Memory Leakage

Dangling pointer

System crash

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