OBJECT ORIENTED ANALYSIS AND DESIGN MCQ WITH ANSWERS
JNTUH OOAD MID-2 EXAMINATION OBJECTIVE QUESTION PAPER WITH ANSWERS
UNIT IV
EVENTS AND SIGNALS: OOAD MCQ
1. ________ are used to model records of activities that describe what happened in the past/what need to be done later.
a. Events
b. Signal
c. Node
d. Object
2. ________ transitions are handled without causing a change in state.
a. Internal
b. Substates
c. Name
d. Deferred event
3. Exceptions are ________
a. internal signal
b. state
c. association
d. generalization
4. A ________ represents a named object that is dispatched asynchronously b then received by another.
a. events
b. signal
c. node
d. name
OOAD MID-2 EXAM QUESTION PAPER WITH ANSWERS
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5. A ________ is an event that represents the passage of time.
a. events
b. node
c. time event
d. signal
6. Call event represents the of ________ an operation.
a. class
b. use case
c. dispatch
d. activity
7. Time event is modeled by the keyword ________
a. when
b. after
c. signal
d. change
8. Change event is modeled by the keyword ________
a. after
b. when
c. time
d. signal
9. Exceptions are arranged in ________
a. hierarchy
b. sequence
c. linear
d. circle
10. ________ have a lot in common with plain classes.
a. Events
b. Node
c. Time event
d. Signals
JNTUH IT 3-2 MID-2 EXAM OBJECTIVE PAPER
JNTUH R16 CSE 3-2 MID-2 EXAM MCQ UNITWISE
JNTU R16 CSE MID-2 EXAM OBJECTIVE PAPER
Answers:
1. Correct Answer: a
What happened in the past/what need to be done later is modeled by events.
2. Correct Answer: a
Internal transitions are handled without causing a change in state.
3. Correct Answer : a
Exceptions are an example of internal signal. It is an asynchronous event.
4. Correct Answer: b
Named object that is dispatched asynchronously by one object and then received by another is represented by signal.
5. Correct Answer: c
The passage of time is an event known as time event.
6. Correct Answer: c
A call event represents the dispatch of an operation and it is a synchronous event.
7. Correct Answer: b
Time event is modeled by using the keyword 'after' followed by some expression that evaluates to a period of time which can be simple or complex.
8. Correct Answer: b
Chang event is modeled by using the keyword 'when' followed by some Boolean expression.
9. Correct Answer: a
In modeling the exceptions, arrange the exceptions in a hierarchy.
10. Correct Answer: d
Plain classes are common with signals.
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