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Essential OOAD Interview Questions & Answers:

1. Which is not the attribute of an entity?
a) behavior
b) state
c) time
d) space

c) time

2. A relationship between classes and interfaces can be viewed as ____________ relationship.
a) association
b) generalization
c) link
d) realization

d) realization

3. A link shows the relationship between _______________.
a) nodes
b) classes
c) interfaces
d) objects

d) objects

4. Interaction diagrams are:
a) Sequence Diagram
b) Collaboration Diagram
c) both a and b
d) none

c) both a and b

5. There are generally ________ diagrams used in UML.
a) seven
b) eight
c) nine
d) ten

c) nine

6. A link can be viewed as a subset of _________.
a) generalization
b) association
c) both a and b
d) none

b) association

7. Which doesn't represent a relationship in UML?
a) Dependency
b) Generalization
c) Specification
d) Realization

c) Specification

8. A _________ diagram emphasizes the structural organization of the objects that send and receive messages.
A) sequence
b) activity
c) use case
d) collaboration

d) collaboration

9. A constraint extends the _____________ of a UML building block.
a) vocabulary
b) properties
c) semantic
d) definition

c) semantic

10. The _______ view addresses the configuration management of the system's releases.
a) use case
b) process
c) implementation
d) design

c) implementation

11. A ______________ is a general -purpose mechanism for organizing elements into groups.
a) node
b) class
c) package
d) component

c) package

12. A ______________ is a physical or replaceable part of a system that conforms to and provides the realization of set of interfaces.
a) node
b) object
c) interface
d) component

d) component

13. In object-oriented approach, objects are:
a) Identical
b) Discrete
c) Both Identical And Discrete
d) None

b) Discrete

14. UML is not a language for:
a) visualization
b) documentation
c) simplification
d) construction

c) simplification

15. A use case diagram is used to model __________ of a system.
a) structure
b) behavior
c) organization
d) none

b) behavior

16. In a class, a private operation is shown by:
a) +
b) #
c) *
d) none

d) none

17. A ________ is a contract or an obligation of a class.
a) constraint
b) note
c) responsibility
d) none

c) responsibility

18. A relationship between use cases and collaboration can be viewed as ____________ relationship.
a) association
b) generalization
c) link
d) realization

d) realization

19. UML stands for:
a) Universal Modeling Language
b) Unified Modelling Language
c) Universal Modelling Language
d) ununified Modelling Language

b) Unified Modelling Language

20. _________ relationship is used to model an inheritance.
a) specialization
b) generalization
c) dependency
d) none

b) generalization

21. In the description of a class, a protected operation is shown by:
a) +
b) #
c) -
d) none

b) #

22. A ________ is a condition or situation during the life of an object during which it satisfies some condition, performs some activity, or waits for some events.
a) class
b) state
c) activity
d) specification

b) state

23. The _______ view addresses the performance, scalability and throughput of the system.
a) use case
b) process
c) implementation
d) design

b) process

24. Which is not one of the model of OMT?
a) dynamic
b) static
c) functional
d) none

c) functional

25. A directed dashed line represents ____________ relationship.
a) message
b) association
c) dependency
d) none

c) dependency

26. A use case view represents _______ aspects of the view.
a) static
b) dynamic
c) both a and b
d) none

c) both a and b

27. The _______ view addresses the distribution, delivery and installation of the parts that make up of the physical system.
a) use case
b) process
c) implementation
d) none

d) none

28. A tagged value extends the _____________ of a UML building block.
a) vocabulary
b) properties
c) semantic
d) definition

b) properties

29. An association indicates the relationship between ____________.
a) nodes
b) classes
c) interfaces
d) objects

b) classes

30. A component diagram address the static ________ view of system.
a) stuctural
b) behavioral
c) implementation
d) none

c) implementation

31. A class diagram shows relationship between/among:
a) Classes
b) Interfaces
c) Collaborations
d) all of these

d) all of these

32. A constraint is used to __________ rules of a UML building block.
a) add
b) modify
c) both a and b
d) none

c) both a and b

33. A dependency is a ______________ relationship between two things.
a) structural
b) semantic
c) behavioral
d) none

b) semantic

34. A ___________ allow us to you to create new kind of building blocks derived from existing one.
a) tagged value
b) stereotype
c) interface
d) class

b) stereotype

35. Which is not one of the characteristic of object orientation?
a) Abstraction
b) Encapsulation
c) Polymorphism
d) Generalization

d) Generalization

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