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OMG-OCUP2-ADV300 Exam - Topic 8 Question 36 Discussion

Actual exam question for OMG's OMG-OCUP2-ADV300 exam
Question #: 36
Topic #: 8
[All OMG-OCUP2-ADV300 Questions]

Choose the correct answer:

What does a lower multiplicity of one for an end of an n-ary Association imply?

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Suggested Answer: A

In UML, the multiplicity of an association end specifies how many instances of the class at that end can participate in a single association. A lower multiplicity of one (1) at one end of an n-ary (where n > 2) association implies that there must be at least one link that combines the values of the other ends, but it doesn't require that a link exists for every possible combination. Therefore, it's possible for some combinations to exist as links, while others do not, which is indicated by the option that links combining the values of the other ends may exist or may not exist. This interpretation is consistent with the definition of multiplicity in associations as outlined in the UML 2.x Superstructure Specification.


by Alita at Jul 29, 2025, 03:06 PM

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Josphine
2 months ago
I agree with A, it makes the most sense to me!
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Annice
2 months ago
Wait, are we sure about this? D sounds kinda right too.
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Shad
2 months ago
Nah, I feel like it's A. Could be more flexible.
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Sherita
3 months ago
I think it's definitely B. Exactly one link!
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Dong
3 months ago
C seems too strict. Not every combo needs a link.
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Loreta
3 months ago
I feel like option B is the right choice because it talks about exactly one link, which seems to fit the definition of lower multiplicity.
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Nydia
3 months ago
I’m confused about this one. I thought lower multiplicity meant there could be multiple links, but now I’m not so sure.
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Merrilee
4 months ago
I remember practicing a question like this where it was about the existence of links. I feel like option A might be correct since it suggests links may or may not exist.
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Aileen
4 months ago
I think a lower multiplicity of one means there has to be exactly one link, but I'm not entirely sure.
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Amie
4 months ago
This one's tricky, but I think I've got it. A lower multiplicity of one means there's exactly one link, so the answer has to be B. I'm pretty confident about that.
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Asuncion
4 months ago
I'm feeling good about this question. The key is understanding what "lower multiplicity of one" means. Based on that, I think the correct answer is B.
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Eulah
4 months ago
Okay, let me see if I can break this down. A lower multiplicity of one means there's only one link, so I think the answer is B. But I want to double-check the other options just to be sure.
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Casandra
5 months ago
Hmm, I'm a little unsure about this. I'm debating between A and B, but I'm not totally sure. I'll have to think it through carefully.
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Angelyn
5 months ago
I'm pretty confident about this one. I think the answer is B - exactly one link exists combining the values of the other ends.
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