CS304 Midterm Online Quiz

CS304-Midterm

1 / 50

A generalization-specialization relation between classes are implemented using

encapsulation

data hiding

inheritance

friend classes

2 / 50

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

TRUE

FALSE

3 / 50

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

object oriented Programming

non of the given

structured programming

procedural programming

4 / 50

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

Static variables

Primitive variables

Instance variable

None of given

5 / 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 protected

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 private

6 / 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?

Templates

Data hiding

Overloading

Encapsulation

7 / 50

The >= operator can be overloaded

TRUE

FALSE

8 / 50

Which one of the following terms must relate to polymorphism?

Static allocation

Dynamic allocation

Dynamic binding

Static typing

9 / 50

__________ provide the facility to access the data member

inline function

accesser function

private function

None of the given

10 / 50

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

TRUE

FALSE

11 / 50

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

Integer

Double

Chracter

12 / 50

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

Encapsulation

Information Hiding

Abstraction

both encapsulation and information hiding

13 / 50

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

Composition

Separation

Aggregation

None of the given

14 / 50

__________ satisfy the condition of polymorphism

all of the given

Diamond

Coal

Carbon

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?

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

Give the goahead for further design using the current scheme

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

16 / 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

Data Mining

Obfustication

Encapsulation

17 / 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,

FALSE

TRUE

18 / 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);

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

Rational_number operator+( Rational_number & obj);

operator+(double& obj);

19 / 50

Static variable can be initialized more than once.

FALSE

TRUE

20 / 50

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

FALSE

TRUE

21 / 50

this pointers are not accessible for static member functions

FALSE

TRUE

22 / 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

23 / 50

Constant objects cannot change their state,

FALSE

TRUE

24 / 50

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

data members

static variables

instance variables

dynamic variables

25 / 50

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

TRUE

FALSE

26 / 50

_______ is a relationship

Inheritance

Polymarphism

encapsulation

abstraction

27 / 50

A static member function cannot be declared

Static

Implicit

Explicit

Virtual

28 / 50

Which one of the following is not an object association?

Aggregation

Composition

Simple Assocation

Inheritance

29 / 50

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

InstantiatedC++ How to Program, Fifth Edition

Called

Define

Declared

30 / 50

Which is not the Advantage of inheritance?

facilitating class libraries

avoiding the rewriting of code.

providing class growth through natural selection

providing a useful conceptual framework.

31 / 50

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

FALSE

TRUE

32 / 50

A generalization-specialization relation between classes are implemented using

encapsulation

friend classes

data hiding

inheritance

33 / 50

Inheritance is a way to

add features to existing classes without rewriting them

pass arguments to objects of classes

organize data

improve data-hiding and encapsulation

34 / 50

Which one is not keyword in C++?

B_op

operator

None of given

const

35 / 50

Static variable can be initialized more than once

FALSE

TRUE

36 / 50

What a derived class can add?

New member functions and New friend functions

All of given

New data members

New constructors and destructor

37 / 50

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

Private data members

Both public and private members

Interface

Private member functions

38 / 50

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

Memory Leakage

Dangling pointer

System crash

All of the given

39 / 50

The concept of derived classes is involved in,

encapsulation

inheritance

array

structure

40 / 50

operator+(double& obj);

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

Rational_number operator+( Rational_number & obj);

Rational_number operator+(double& obj);

41 / 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

Age

Name

Work()

42 / 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

43 / 50

this pointers are not accessible for static member functions

TRUE

FALSE

44 / 50

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

Class

Instances

Data Members

Function

45 / 50

Which operator can not be overloaded?

Conditional operator (? : )

Assignment operator ( = )

Script operator ( [] )

The relation operator ( >= )

46 / 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

47 / 50

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

48 / 50

Using encapsulation we can achieve

Information hiding

All of given options

Least interdependencies among modules

Implementation independence

49 / 50

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

Static

Data Member

Private member

Public Member

50 / 50

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

Borrow

Inherit

Adopt

Utilize

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