OOAD MCQs (Multiple Choice Questions Answers)

1.  Abstraction has ______ types.

a) 1

b) 2

c) 3

d) 4

2. To hide the internal implementation of an object we use …

a) inheritance

b) encapsulation

c) polymorphism

d) none of these

3. The vertcal dimension of a sequence diagram shows

a) abstract

b) line

c) time

d) messages

4. CRC approach and noun phrase approach are used to identify …

a) classes

b) colaborators

c) use cases

d) object

5. Abstraction provide an operation named as …

a) encapsulation

b) call back

c) turndown

d) inheritance

6.  To distunguish between active and non-active object which property is applied?

a) abstraction

b) polymophism

c) concurrency

d) aggregation

7. The time oriented diagram include …

a) sequence

b) classes

c) activity

d) none of these

8. Aggregation is …

a) set of relationship

b) composed of relationship

c) part of relationship

d) all of these

9. Cohesion and coupling are represented by using …

a) structure part

b) structure  effect

c) dependence matrix

d) all of these

10. Refinement is a process of

a) inheritance

b) colaboration

c) elaboration

d) polymophism

11. SMI stands for

a) software maturity index

b) system maturity information

c) software model index

c) none of these

12. Group of functionally related objects is …

a) concatenation

b) cohesion

c) coupling

d) all of these

in a sequence diagram, the _____ indicates when an object sends or receives a message.
(A)command line
(B)focus
(C)request link
(D)lifeline

When arranging actors and objects on a sequence diagram, it is nice to list them _____.

A ___ describes information about an object.

The two types of interaction diagrams are ____, and ____ diagrams.

Answer - Click Here:

sequence and communication

Looping in an activity diagram is best represented using what?

A decision point within an activity diagram may be shown with an activity symbol.
True/False

Answer - Click Here:

True

A___ is an instantiation of a class.

On an activity diagram the arrows represent what?

The focus in a sequence diagram is on _____.

Answer - Click Here:

time ordering of messages being passed between objects

The acronym CRUD stands for ____.

Answer - Click Here:

create, read, update, delete

A deployment diagram is most useful for which design activity?

The external behavior of a system is described by ___.

In an activity diagram, the merge symbol has the same shape as what other symbol?

On an activity diagram, which of the following is not a valid use of a synchronization bar?

Answer - Click Here:

To initiate the alternative paths.

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