Web Services Development MCQs with Answers
Practice important Web Services Development MCQs with answers and explanations.
Chapter: 1
Q21:
Which of the following is an advantage of using abstraction in programming?
A. Hides essential details
B. Increases complexity
C. Makes code difficult to maintain
D. Reduces efficiency
Correct Answer:
A
Chapter: 1
Q22:
Which type of inheritance is shown by the relationship: "Student is a Person"?
A. Multiple
B. Single
C. Multilevel
D. Hierarchical
Correct Answer:
B
Chapter: 1
Q23:
What is encapsulation in object-oriented programming?
A. Data hiding
B. Data security
C. Data encapsulation
D. Data exposure
Correct Answer:
A
Chapter: 1
Q24:
Which access control is not a part of encapsulation?
A. Public
B. Private
C. Protected
D. Undefined
Correct Answer:
D
Chapter: 1
Q25:
The process of hiding the internal details and showing only the essential information is called?
A. Abstraction
B. Encapsulation
C. Inheritance
D. Polymorphism
Correct Answer:
B
Chapter: 1
Q26:
In the example of a Mobile Phone, what is hidden from the user?
A. The screen
B. The keyboard
C. The inner workings
D. The charger
Correct Answer:
C
Chapter: 1
Q27:
Encapsulation helps in which of the following?
A. Enhancing flexibility
B. Code breaking
C. Direct access to data
D. None of the above
Correct Answer:
A
Chapter: 1
Q28:
What will happen if the inheritance of Doctor Class is changed from Teacher class to Person class?
A. Teacher class will be modified
B. Doctor class will lose all functions
C. Functions of Teacher class will be excluded from Doctor class
D. Person class will inherit Teacher class
Correct Answer:
C
Chapter: 1
Q29:
In Information Hiding, what is restricted?
A. Direct access to data
B. Creation of objects
C. Method overriding
D. Class inheritance
Correct Answer:
A
Chapter: 1
Q30:
In the provided class Demo, what will happen if the mark is less than or equal to zero?
A. Mark will be set to zero
B. Mark will not be set
C. Error will occur
D. Mark will remain unchanged
Correct Answer:
A
Chapter: 1
Q31:
The main advantage of information hiding is?
A. Direct data manipulation
B. Barrier against change propagation
C. Easier code sharing
D. Open access to data
Correct Answer:
B
Chapter: 1
Q32:
Which of the following is an example of a child object not having its lifecycle independently of the parent object?
A. House and furniture
B. House and rooms
C. Car and engine
D. Book and pages
Correct Answer:
B
Chapter: 1
Q33:
What is the term for a class that is declared abstract and may include abstract methods?
A. Concrete Class
B. Derived Class
C. Abstract Class
D. Final Class
Correct Answer:
C
Chapter: 1
Q34:
In Multilevel Inheritance, which class is implicitly inherited?
A. Child Class
B. Parent Class
C. Grandparent Class
D. Sibling Class
Correct Answer:
C
Chapter: 1
Q35:
Which type of inheritance involves a single derived class inheriting from multiple base classes?
A. Single Inheritance
B. Multilevel Inheritance
C. Multiple Inheritance
D. Hybrid Inheritance
Correct Answer:
C
Chapter: 1
Q36:
In composition, what happens if the parent object is deleted?
A. The child object remains
B. The child object is deleted
C. The child object is transferred
D. The child object is modified
Correct Answer:
B
Chapter: 1
Q37:
In the example of Aggregation, which of the following can exist independently?
A. Room
B. Bed
C. Furniture
D. Table
Correct Answer:
C
Chapter: 1
Q38:
Which type of association is represented by a single directional arrow?
A. Simple Association
B. One Way Association
C. Two Way Association
D. Ternary Association
Correct Answer:
B
Chapter: 1
Q39:
Which of the following is not a feature of an abstract class?
A. Cannot be instantiated
B. Includes abstract methods
C. Can be subclassed
D. Must include at least one method
Correct Answer:
D
Chapter: 1
Q40:
In the context of Aggregation, what relationship is described by "has-a"?
A. Inheritance
B. Association
C. Composition
D. Aggregation
Correct Answer:
D