Wells Fargo Abstraction Problems with Solutions Quiz-1

Question 1

Time: 00:00:00
What makes a class abstract?

By making all member functions constant.

By making all member functions constant.

By making at least one member function as pure virtual function.

By making at least one member function as pure virtual function.

By declaring it abstract using the static keyword.

By declaring it abstract using the static keyword.

By declaring it abstract using the virtual keyword.

By declaring it abstract using the virtual keyword.

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Question 2

Time: 00:00:00
Which type of class allows only one object of it to be created?

Virtual class

Virtual class

Abstract class

Abstract class

Singleton class

Singleton class

Friend class

Friend class

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Question 3

Time: 00:00:00
Which of the following concepts of OOPS means exposing only necessary information to client?

Multi level inheritance

Multi level inheritance

Multiple inheritance

Multiple inheritance

polymorphism

polymorphism

data hiding

data hiding

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Question 4

Time: 00:00:00
Which type of inheritance needs a virtual function:

Friend function

Friend function

Static function

Static function

Destructor

Destructor

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Question 5

Time: 00:00:00
Which of the following cannot be inherited?

Public data members

Public data members

Private data members

Private data members

Protected data members

Protected data members

Member functions

Member functions

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Question 6

Time: 00:00:00
Which of the following are available only in the class hierarchy chain?

Polymorphism

Polymorphism

Structure

Structure

Inheritance

Inheritance

Cascading

Cascading

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Question 7

Time: 00:00:00
Which of the following is not a type of inheritance?

Multiple

Multiple

Multilevel

Multilevel

Distributive

Distributive

Hierarchical

Hierarchical

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Question 8

Time: 00:00:00
The process of building new classes from existing one is called ______.

Polymorphism

Polymorphism

Encapsulation

Encapsulation

Abstraction

Abstraction

Inheritance

Inheritance

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Question 9

Time: 00:00:00
Which of the following supports the concept of hierarchical classification?

extends

extends

subclasses

subclasses

native

native

all of the mentioned

all of the mentioned

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Question 10

Time: 00:00:00
Which Keyword from the following is used to inherit properties from one class into another?

Encapsulation

Encapsulation

Abstraction

Abstraction

Data hiding

Data hiding

Data binding

Data binding

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June 23, 2019