CS304 Midterm Online Quiz

CS304-Midterm

1 / 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”

Data Mining

Encapsulation

Compilation

Obfustication

2 / 50

The ________ relationship indicates that an object contains other objects

‘be-

‘has-a’

‘is-a’

None of given

3 / 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);

operator+(double& obj);

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

4 / 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

5 / 50

Which is not the Advantage of inheritance?

providing a useful conceptual framework.

facilitating class libraries

providing class growth through natural selection

avoiding the rewriting of code.

6 / 50

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

Produce an error

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

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

7 / 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 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

Give the goahead for further design using the current scheme

8 / 50

this pointers are not accessible for static member functions

FALSE

TRUE

9 / 50

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

System crash

All of the given

Memory Leakage

Dangling pointer

10 / 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

11 / 50

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

TRUE

FALSE

12 / 50

Which of the following are an advantage of OOP?

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

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

All of the given options

13 / 50

Which one is not keyword in C++?

operator

None of given

B_op

const

14 / 50

Using encapsulation we can achieve

Implementation independence

All of given options

Information hiding

Least interdependencies among modules

15 / 50

A class can be identified from a statement by -------------

Verb

Pronoun

Noun

Adverb

16 / 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

17 / 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 generates only one copy of the function template

The compiler can only generate copy for the int type data

18 / 50

Which one of the following terms must relate to polymorphism?

Static allocation

Dynamic allocation

Dynamic binding

Static typing

19 / 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 private

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

20 / 50

Which operator can not be overloaded?

Conditional operator (? : )

Script operator ( [] )

The relation operator ( >= )

Assignment operator ( = )

21 / 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

dynamic variables

data members

static variables

22 / 50

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

Function

Instances

Data Members

Class

23 / 50

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

Derived Class

Named class

Base class

Deprived Class

24 / 50

Which operator can not be overloaded?

The relation operator ( >= )

Assignment operator ( = )

Script operator ( [] )

Conditional operator (? : )

25 / 50

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

Shallow Copy

Constructor

Deep Copy

Destructor

26 / 50

The process of hiding unwanted details from users is called __________

Abstraction

Encapsulation

Protection

Argumentation

27 / 50

A static member function cannot be declared

Implicit

Explicit

Static

Virtual

28 / 50

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

Header File

None of the given

Library File

Structure

29 / 50

A generalization-specialization relation between classes are implemented using

friend classes

encapsulation

data hiding

inheritance

30 / 50

Constant objects cannot change their state,

FALSE

TRUE

31 / 50

A template provides a convenient way to make a family of

programs and algorithms

functions and classes

classes and exceptions

variables and data members

32 / 50

The >= operator can be overloaded

FALSE

TRUE

33 / 50

Static variables act like a global variable in the context or scope of the class

FALSE

TRUE

34 / 50

this pointers are not accessible for static member functions

TRUE

FALSE

35 / 50

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

Name

Age

Both Name and Age

Work()

36 / 50

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

FALSE

TRUE

37 / 50

Which part of an object exhibits its state?

Operations

Any public part

Data

Any private part

38 / 50

What a derived class can add?

New constructors and destructor

New member functions and New friend functions

All of given

New data members

39 / 50

this pointers are not accessible for static member functions

FALSE

TRUE

40 / 50

What a derived class can add?

New member functions and New friend functions

New data members

All of given

New constructors and destructor

41 / 50

The find() algorithm

finds a container that matches a specified container

takes iterators as its first two arguments.

finds matching sequences of elements in two containers

takes container elements as its first two arguments

42 / 50

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

Borrow

Adopt

Utilize

Inherit

43 / 50

Which operator can not be overloaded?

Script operator ( [] )

Conditional operator (? : )

The relation operator ( >= )

Assignment operator ( = )

44 / 50

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

TRUE

FALSE

45 / 50

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

TRUE

FALSE

46 / 50

Static variable can be initialized more than once

FALSE

TRUE

47 / 50

__________ satisfy the condition of polymorphism

Carbon

Diamond

all of the given

Coal

48 / 50

Which one is not keyword in C++?

None of given

B_op

const

operator

49 / 50

The >= operator can be overloaded.

FALSE

TRUE

50 / 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

take four arguments

return a value

take two arguments

create a named temporary object

Your score is

The average score is 0%