CS304 Midterm Online Quiz

CS304-Midterm

1 / 50

To convert from a user-defined class to a basic type, you would most likely use

a built-in conversion operator

an overloaded = operator

a one-argument constructor

a conversion operator that’s a member of the class

2 / 50

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

TRUE

FALSE

3 / 50

The find() algorithm

finds a container that matches a specified container

takes container elements as its first two arguments

takes iterators as its first two arguments.

finds matching sequences of elements in two containers

4 / 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

5 / 50

Which operator can not be overloaded?

Conditional operator (? : )

Assignment operator ( = )

Script operator ( [] )

The relation operator ( >= )

6 / 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?

registration date and diagnosis

diagnosis and age

age and sex

sex and diagnosis

7 / 50

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

template <typename T>

typename <template T>

Class <Template T>

Template Class <ClassName>

8 / 50

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

Memory Leakage

All of the given

System crash

Dangling pointer

9 / 50

A non-virtual member function is defined in a base class and overridden in a derived class; if that function is called through a base-class pointer to a derived class object, the derived-class version is used

FALSE

TRUE

10 / 50

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

None of the given

Woman

Amphibious Vehicle

Mermaid

11 / 50

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

FALSE

TRUE

12 / 50

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

FALSE

TRUE

13 / 50

A generalization-specialization relation between classes are implemented using

friend classes

encapsulation

inheritance

data hiding

14 / 50

An overloaded operator always requires one less argument than its number of operands

TRUE

FALSE

15 / 50

In OOP a class is an example of _____

Data Type

Abstract Type

None of the given

User Defined Type

16 / 50

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

Abstraction

Polymarphism

Encapsulation

Inheritance

17 / 50

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

Constructor of the class

Delete operator

Destructor of the class

New operator

18 / 50

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

TRUE

FALSE

19 / 50

_______ is a relationship

encapsulation

Polymarphism

Inheritance

abstraction

20 / 50

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

Private member

Static

Public Member

Data Member

21 / 50

__________ satisfy the condition of polymorphism

Diamond

all of the given

Coal

Carbon

22 / 50

The process of hiding unwanted details from users is called __________

Encapsulation

Argumentation

Protection

Abstraction

23 / 50

this pointers are not accessible for static member functions

TRUE

FALSE

24 / 50

Which operator can not be overloaded?

Assignment operator ( = )

Script operator ( [] )

The relation operator ( >= )

Conditional operator (? : )

25 / 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?

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

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

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

Give the goahead for further design using the current scheme

26 / 50

What is true about function templates?

None of the given

The compiler can only generate copy for the int type data

The compiler generates a copy of function respective to each type of data

The compiler generates only one copy of the function template

27 / 50

Which operator can not be overloaded?

Assignment operator ( = )

The relation operator ( >= )

Script operator ( [] )

Conditional operator (? : )

28 / 50

The >= operator can be overloaded

FALSE

TRUE

29 / 50

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

Aggregation

Composition

None of the given

Separation

30 / 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

Work()

Name

31 / 50

Inheritance is a way to

improve data-hiding and encapsulation

pass arguments to objects of classes

add features to existing classes without rewriting them

organize data

32 / 50

Static variable can be initialized more than once

FALSE

TRUE

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

Overloading

Templates

Data hiding

34 / 50

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

Double

Chracter

Integer

35 / 50

When a variable is define as static in a class then all object of this class,

Have same copy of this variable

Have different copies of this variable

None of given

Can not access this variable

36 / 50

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

Protected data members

All of given

State

Behavior

37 / 50

________ is/are used to access information hidden within an object?

Interface

Private data members

Both public and private members

Private member functions

38 / 50

Inheritance is a way to - Please choose one

make general classes into more specific classes.

improve data hiding and encapsulation

pass arguments to objects of classes

providing class growth through natural selection

39 / 50

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

Polymorphism

Encapsulation

Inheritance

Data hiding

40 / 50

Which of the following are an advantage of OOP?

All of the given options

OOP makes it easy to re-use the code

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

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

41 / 50

Static variable can be initialized more than once.

TRUE

FALSE

42 / 50

Assume a class Derv that is privately derived from class Base. An object of class Derv located in main() can access

protected members of Base

private members of Derv

public members of Derv.

protected members of Derv

43 / 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+(double& obj);

operator+(double& obj);

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

Rational_number operator+( Rational_number & obj);

44 / 50

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

45 / 50

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

FALSE

TRUE

46 / 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?

1,3,5

1,2,3,4

1, 2, 3

2, 4

47 / 50

Rational_number operator+(double& obj);

operator+(double& obj);

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

Rational_number operator+( Rational_number & obj);

48 / 50

The ________ relationship indicates that an object contains other objects

‘is-a’

None of given

‘be-

‘has-a’

49 / 50

We can use "this" pointer in the constructor in the body and even in the initialization list of any class if we are careful,

TRUE

FALSE

50 / 50

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

Inherit

Utilize

Borrow

Adopt

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