Java UML MCQ Questions-04

1. . Which of the following feature or features all sub-classes inherit from its super-class?
Information structure (characteristics)
Behavior
Identity
both a&b

2. What does transitive operation refer to?
A sub-class can not inherit from more than one class
A sub-class always inherits all the characteristics from its super-class
All features of a class is carried over to a sub-class at next adjacent level
All of the above

3. What does “disjoint nature of generalization” refer to?
A sub-class cannot inherit from more than one class
A sub-class always inherits all the characteristics from its super-class
All features of a class is carried over to a sub-class at next adjacent level
All of the above

4. Objects communicate each other by ________________. Which one best fits the blank.
By sending messages
By sending messagesB. By creating in-memory connection
By implementing inheritance
By using collaborator

5. . Objects communicate by ___________.
sending message
generating event
sending signals
encapsulating each other

6. An object encapsulates data and processes to act on this data. These processes are called ______________. Which one best fits the blank.
Signature
Protocol
Operations
State

7. . Each operation has a specific _____________________. Which one best fits the blank
Structure
Argument
Parameter
Signature

8. __________________ is the definition of an object’s interface.
An Operation Signature
An attribute
A method
A message

9. . In order to invoke an operation, its _________ must be given. Which one best fits the blank.
Structure
Argument
Parameter
Signature

10. Operation signatures are also called __________.
Message binding
Message protocols
Message calling
Asynchronous operation

11. Which of the following is or are true about polymorphism?
Polymorphism allows one message to be sent to objects of different classes and each object responds differently
Polymorphism allows to create more than one object of a class in the same operation
Polymorphism allows to restrict access to an object’s operations
All of the above

12. The ability of different methods to implement the same operation in different ways those are appropriate to its class”
The ability of different methods to implement the same operation in different ways those are appropriate to its class”
Generalization
Specialization
Polymorphism

13. Which of the following is or are true
An object’s state is determined by the values of its attributes
An object maintains its state until an external stimulus change it
An object’s state affects the way it responds to messages
All

14. A descriptor for a collection of objects those are logically similar in terms of their behavior and the structure of their data
Class
Instance
Generalization
Specialization

15. Which of the following features will be same for two instances of a class?
Structure of data they hold
Behaviors
Value of attributes
both A&c

16. . Which of the following is are true about an instance of a class?
An instance originates from a class
A instance is structured according to its class
D. An instance behaves according to its class
All

17. What is “state” of an object?
The condition of an object at a given moment
What the object can do
How an object responds to events
Uniqueness of an object

18. . Objects communicate by ___________.
sending message
generating event
sending signals
encapsulating each other

19. The ability of different methods to implement the same operation in different ways those are appropriate to its class
Inheritance
Generalization
Specialization
Polymorphism

20. The main focus of both analysis and activities is on ___________.
models
diagrams
standards
finding requirements

Score =
Correct answers: