| Question | Answer |
| It is an identifiable entity with some characteristics and behavior
Object
Class
Methods
Properties | Object |
| A behavior an object
class
Property
Method
Abstract | Method |
| If there is a class named Student and you want to create an object name "firstyear", what would be the correct syntax
Student firstyear
student first year;
student firstyear()
student firstyear | Student firstyear |
| Blueprint of an object
Inheritance
Data Members
Object
Class | Class |
| Which of the following is an OOP language?
BASIC
C++
HTML
C | C++ |
| Refers to binding together the data and the functions that manipulate them
Objects
Class
Abstraction
Encapsulation | Encapsulation |
| Which of the following cannot be passed to a function in C++ ?
Header file
Constant
Structure
Array | Header file |
| Which is not a feature of OOP in general definitions?
Duplicate/Redundant Data
Modularity
Code reusability
Efficient code | Duplicate/Redundant Data |
| What operator is used to access a data member or a member function?
== operator
& operator
+ operator
dot (.) operator | dot (.) operator |
| Pick out the other definition of objects.
member of the class
instance of the class
associate of the class
attribute of the class | instance of the class |
| class Test {
int x;
};
int main()
{
Test t;
cout << t.x;
return 0;
}
0
-1
Garbage value
Error | Error |
| Which of the following operator is used for cout?
<<
>>
+
= | << |
| It refers to the blueprint of an object:
Data
Access Modifier
Class
Inheritance | Class |
| What is the difference between a struct and a class in C++?
A class has a default privacy specification of public.
A struct cannot have member functions
A struct cannot have private members.
A class has a default privacy specification of private | A class has a default privacy specification of private |
| Which of the following concepts of OOPS means exposing only necessary information to the client?
Data hiding
Encapsulation
Data binding
Abstraction | Abstraction |
| If a class is named Fruits and you will create an object named Apple, what would be the statement?
Fruits(Apple);
Apple Fruits;
Apple@Fruits;
Fruits Apple; | Fruits Apple; |
| What symbol is used to define a function outside of the class?
::
<>
:
& | :: |
| Which of the following statements is correct in C++?
Class members are public by default.
Structures can have functions as members
Classes cannot have data as protected members.
Structure members are private by default | Structures can have functions as members |
| If an object named Box has a member of length, what is the command to assign a value of 5 into it?
Box.length = 5;
Length = 5;
Box.length == 5;
Box(5) | Box.length = 5; |
| If a class is named Car and you will create an object named SportsCar, what would be the statement?
Car<SportsCar>;
SportsCar Car;
Car (SportsCar);
Car SportsCar; | Car SportsCar; |
| Which concept of OOP is false for C++?
A class must have member functions
Code must contain at least one class
At least one object should be declared in code
Code can be written without using classes | A class must have member functions |
| #include <iostream>
using namespace std;
class Test {
int x;
};
int main()
{
Test t;
cout << t.x;
return 0;
}
Error
1
Garbage value
0 | Error |
| How many classes can be defined in a single program?
Only 999
Only 100
As many as you want
Only 1 | As many as you want |
| #include<iostream>
using namespace std;
main() {
class student {
int rno = 10;
} v;
cout<<v.rno;
}
10
Garbage value
Error
0 | Error |
| The default access specifier for the class members is:
none of the given
private
protected
public | private |
| Which of the following concepts means wrapping up of data and functions together?
Inheritance
Object
Encapsulation
Abstraction | Encapsulation |
| If an object named Apple has a member named "price", what is the command to assign a value of 15 into it?
Price(15);
Apple.price = 15;
Apple(15);
Apple.price == 15; | Apple.price = 15; |
| class Test {
int x;
};
int main()
{
Test t;
cout << t.x;
return 0;
}
-1
0
Garbage value
Error | Error |
| An object is a _________________ of a class
an encapsulation
an instance
a member function
an interface | an instance |
| It means displaying only essential information and hiding the details.
Object
Class
Abstraction
Methods | Abstraction |
| #include <iostream>
using namespace std;
class Test {
int x;
};
int main()
{
Test t;
cout << t.x;
return 0;
}
Error
1
Garbage value
0 | Error |
| Which of the following best defines a class?
Parent of an object
Instance of an object
Scope of an object
Blueprint of an object | Blueprint of an object |
| Which of the following term is used for a function defined inside a class?
Member Variable
Member function
Classic function
Class function | Member function |
| What is the additional feature in classes that were not in structures?
Static data allowed
Public access specifier
Data members
Member Functions | Member Functions |
| Which of the following has a correct C++ class definition?
class Student {};
class Student;
class Student {}:
class Student () | class Student {}; |
| Objects created are based on what?
class
behavior
abstract
attributes | class |
| A Function that has its definition or its prototype within the class definition like any other variable.
Objects
Class
Member Functions
Data Member | Member Functions |
| Which of the following are available only in the class hierarchy chain?
Private data members
Member functions
Protected data members
Public data members | Public data members |
| Which of the following is an abstract data type?
double
string
class
int | class |
| #include<iostream>
using namespace std;
main() {
class student {
int rno = 10;
} v;
cout<<v.rno;
}
Garbage value
10
0
Error | Error |
| #include <iostream>
using namespace std;
class Test {
int x;
};
int main()
{
Test t;
cout << t.x;
return 0;
}
1
0
Error
Garbage value | Garbage value |
| class Test {
int x;
};
int main()
{
Test t;
cout << t.x;
return 0;
}
Error
-1
Garbage value
0 | Garbage value |
