OMG-OCUP2-ADV300 Exam - Topic 1 Question 16 Discussion

Actual exam question for OMG's OMG-OCUP2-ADV300 exam

Question #: 16
Topic #: 1

[All OMG-OCUP2-ADV300 Questions]

Choose the correct answer:

What happens when an exception is raised by an Action within an Activity that has been invoked asynchronously?

AThe exception is propagated to the caller

BThat kind of exception cannot be handled.

CThe catching exception handler has exactly one output pin.

DThe exception is lost if there is no matching handler within the Activity.

Show Suggested Answer

Suggested Answer: D

For asynchronous invocations in UML, when an exception is thrown and there is no matching exception handler within the activity, the exception is effectively lost because there is no direct mechanism to propagate it back to the caller. This reflects the nature of asynchronous communication where the calling process does not wait for the completion of the called process and, thus, may not be designed to handle exceptions that occur during the called process.

UML 2.5 Specification: The UML specification describes the behavior of actions within activities and how exceptions are handled, or not handled, in the case of asynchronous calls. It specifically states that for asynchronous calls, the exception is not propagated back to the caller as there is no return flow defined for such invocations.

by Freida at Aug 27, 2024, 03:26 AM

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Tegan

3 months ago

C is interesting, but I don't think it's the right choice here.

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Antonio

3 months ago

B seems wrong. Exceptions can usually be handled in some way.

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Eric

3 months ago

Wait, are we sure about that? What if there's a global handler?

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Sharika

4 months ago

Totally agree with D! Exceptions need a handler to be caught.

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Giuseppe

4 months ago

I think the answer is D. If there's no handler, it just gets lost.

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Roslyn

4 months ago

I thought that exceptions could be caught, but now I’m wondering if they really just get lost without a handler.

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Jacki

4 months ago

I’m leaning towards option D, but I’m a bit confused about how the exception handling works in asynchronous contexts.

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Kimi

4 months ago

I’m not entirely sure, but I feel like I’ve seen a question like this before, and it mentioned something about exceptions being lost if there’s no handler.

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Lettie

5 months ago

I think I remember that if an exception is raised asynchronously, it might not propagate back to the caller.

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Julio

5 months ago

Okay, let me walk through this step-by-step. If an exception is raised in an asynchronous Action within an Activity, it needs to be handled somewhere. Option A says it's propagated to the caller, which makes sense. Option D says it's lost if there's no handler, which also seems plausible. I'll have to weigh the pros and cons of each.

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Royal

5 months ago

Hmm, I'm a bit confused about this one. I know exceptions can be tricky in async code, but I'm not sure if the answer is A or D. I'll have to think it through carefully.

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Dick

5 months ago

I'm pretty sure the answer is A, the exception is propagated to the caller. That's how exceptions usually work in asynchronous code.

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Glenn

5 months ago

I think the key here is understanding how exceptions are handled in asynchronous code. The question is specifically about an Action within an Activity, so I'm guessing the correct answer has to do with the exception propagation within that context. I'll review my notes on async exception handling to make sure I pick the right option.

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