CS304 Midterm Online Quiz

CS304-Midterm

1 / 50

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

TRUE

FALSE

2 / 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);

3 / 50

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

Public Member

Data Member

Private member

Static

4 / 50

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

New operator

Constructor of the class

Destructor of the class

Delete operator

5 / 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

create a named temporary object

take four arguments

return a value

take two arguments

6 / 50

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

TRUE

FALSE

7 / 50

The >= operator can be overloaded.

TRUE

FALSE

8 / 50

Rational_number operator+(double& obj);

Rational_number operator+( Rational_number & obj);

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

operator+(double& obj);

9 / 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

1,2,3,4

2, 4

10 / 50

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

Setter

Destructor

Constructor

Getter

11 / 50

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

Noun

Adverb

Pronoun

Verb

12 / 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()

13 / 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

14 / 50

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

Integer

Double

Chracter

15 / 50

this pointers are not accessible for static member functions

FALSE

TRUE

16 / 50

The >= operator can be overloaded

FALSE

TRUE

17 / 50

Friend functions are _____________ functions of a class

None of given

object member

non-member

data member

18 / 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

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

19 / 50

The concept of derived classes is involved in,

array

structure

encapsulation

inheritance

20 / 50

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

Private data members

Both public and private members

Interface

Private member functions

21 / 50

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

TRUE

FALSE

22 / 50

Static variable can be initialized more than once

FALSE

TRUE

23 / 50

this pointers are not accessible for static member functions

FALSE

TRUE

24 / 50

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

None of given

Static variables

Primitive variables

Instance variable

25 / 50

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

None of the given

Composition

Separation

Aggregation

26 / 50

Which operator can not be overloaded?

Script operator ( [] )

The relation operator ( >= )

Conditional operator (? : )

Assignment operator ( = )

27 / 50

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

Dangling pointer

All of the given

System crash

Memory Leakage

28 / 50

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

non of the given

object oriented Programming

procedural programming

structured programming

29 / 50

What is true about function templates?

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

None of the given

30 / 50

Constant objects cannot change their state,

TRUE

FALSE

31 / 50

Which part of an object exhibits its state?

Any public part

Any private part

Data

Operations

32 / 50

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

template <typename T>

typename <template T>

Template Class <ClassName>

Class <Template T>

33 / 50

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

an overloaded = operator

a built-in conversion operator

a one-argument constructor

a conversion operator that’s a member of the class

34 / 50

The >= operator can be overloaded

FALSE

TRUE

35 / 50

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

TRUE

FALSE

36 / 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

37 / 50

A generalization-specialization relation between classes are implemented using

data hiding

inheritance

encapsulation

friend classes

38 / 50

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

All of the given

Dangling pointer

Memory Leakage

System crash

39 / 50

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

Destructor

Constructor

Shallow Copy

Deep Copy

40 / 50

The ________ relationship indicates that an object contains other objects

‘has-a’

None of given

‘is-a’

‘be-

41 / 50

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

Information Hiding

both encapsulation and information hiding

Abstraction

Encapsulation

42 / 50

A static member function cannot be declared

Explicit

Static

Virtual

Implicit

43 / 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

sex and diagnosis

age and sex

44 / 50

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

Named class

Deprived Class

Base class

Derived Class

45 / 50

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

Class

Instances

Function

Data Members

46 / 50

The find() algorithm

finds matching sequences of elements in two containers

takes container elements as its first two arguments

finds a container that matches a specified container

takes iterators as its first two arguments.

47 / 50

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

dynamic variables

static variables

data members

instance variables

48 / 50

Which of the following are an advantage of OOP?

All of the given options

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

OOP makes it easy to re-use the code

49 / 50

_______ is a relationship

abstraction

encapsulation

Inheritance

Polymarphism

50 / 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

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