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 one-argument constructor

an overloaded = operator

a built-in conversion operator

a conversion operator that’s a member of the class

2 / 50

The concept of derived classes is involved in,

encapsulation

structure

inheritance

array

3 / 50

Constant objects cannot change their state,

TRUE

FALSE

4 / 50

What a derived class can add?

New constructors and destructor

All of given

New member functions and New friend functions

New data members

5 / 50

What is true about function templates?

None of the given

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

The compiler can only generate copy for the int type data

The compiler generates only one copy of the function template

6 / 50

_______ is a relationship

encapsulation

Polymarphism

abstraction

Inheritance

7 / 50

The process of hiding unwanted details from users is called __________

Argumentation

Protection

Abstraction

Encapsulation

8 / 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>

9 / 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 09 times Fred* p = new Fred[10]; calls the default constructor 10 times

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

Produce an error

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

10 / 50

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

Delete operator

Constructor of the class

New operator

Destructor of the class

11 / 50

Friend functions are _____________ functions of a class

None of given

object member

data member

non-member

12 / 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

TRUE

FALSE

13 / 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

14 / 50

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

None of given

Primitive variables

Instance variable

Static variables

15 / 50

A generalization-specialization relation between classes are implemented using

data hiding

encapsulation

inheritance

friend classes

16 / 50

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

Woman

Mermaid

Amphibious Vehicle

None of the given

17 / 50

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

Instances

Class

Data Members

Function

18 / 50

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

FALSE

TRUE

19 / 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);

20 / 50

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

Borrow

Utilize

Inherit

Adopt

21 / 50

Which one of the following is not an object association?

Composition

Aggregation

Inheritance

Simple Assocation

22 / 50

The >= operator can be overloaded.

FALSE

TRUE

23 / 50

A static member function cannot be declared

Implicit

Virtual

Explicit

24 / 50

In OOP a class is an example of _____

Abstract Type

None of the given

Data Type

User Defined Type

25 / 50

The find() algorithm

finds a container that matches a specified container

takes container elements as its first two arguments

finds matching sequences of elements in two containers

takes iterators as its first two arguments.

26 / 50

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

FALSE

TRUE

27 / 50

Which operator can not be overloaded?

The relation operator ( >= )

Assignment operator ( = )

Conditional operator (? : )

Script operator ( [] )

28 / 50

The >= operator can be overloaded

TRUE

FALSE

29 / 50

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

None of the given

Library File

Structure

Header File

30 / 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 and create a set method that returns it and a get method that updates it

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

Define the variable Age as private

31 / 50

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

Constructor

Shallow Copy

Destructor

Deep Copy

32 / 50

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

Protected data members

All of given

Behavior

State

33 / 50

Which of the following are an advantage of OOP?

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

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

34 / 50

this pointers are not accessible for static member functions

TRUE

FALSE

35 / 50

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

None of given

Have same copy of this variable

Can not access this variable

Have different copies of this variable

36 / 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 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

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

Give the goahead for further design using the current scheme

37 / 50

this pointers are not accessible for static member functions

FALSE

TRUE

38 / 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 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

Define the variable Age as protected

Define the variable Age as private

39 / 50

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

None of given

Primitive variables

Static variables

Instance variable

40 / 50

Assume a class C with objects obj1, obj2, and obj3. For the statement obj3 = obj1 - obj2 to work correctly, if the overloaded - operator must

return a value

take four arguments

take two arguments

create a named temporary object

41 / 50

Which operator can not be overloaded?

Assignment operator ( = )

The relation operator ( >= )

Script operator ( [] )

Conditional operator (? : )

42 / 50

Static variable can be initialized more than once

FALSE

TRUE

43 / 50

operator+(double& obj);

Rational_number operator+(double& obj);

Rational_number operator+( Rational_number & obj);

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

44 / 50

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

FALSE

TRUE

45 / 50

The ________ relationship indicates that an object contains other objects

None of given

‘has-a’

‘is-a’

‘be-

46 / 50

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

Double

Chracter

Integer

47 / 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

public members of Derv.

private members of Derv

protected members of Derv

48 / 50

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

Setter

Constructor

Destructor

Getter

49 / 50

If there is a pointer p to objects of a base class, and it contains the address of an object of a derived class, and both classes contain a nonvirtual member function, ding(), then the statement p->ding(); will cause the version of ding() in the _____ class to be executed

Base

Abstract

virtual

Derived

50 / 50

The technique in which we visualize our programming problems according to real life’s problems is called ----------------

procedural programming

non of the given

object oriented Programming

structured programming

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