Choose the correct answer.
Given the following diagram:

Which generalization constraint keywords should be used to specify that:
1- the set of all instances of Car is not fully covered by its three shown subtypes, Small, Medium, and Large, AND
2- an instance of Car is exclusively either Small Medium, or Large
Suggested Answer: C
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17 comments · newest first
BL
Blondell
10 months ago
C seems off. I’d go with D for sure.
RU
Rueben
10 months ago
Wait, is it really partial? I thought it was more like incomplete.
LE
Lenna
10 months ago
I think the answer is B (partial, exclusive).
WI
Wilbert
10 months ago
Why are there so many options? This is confusing!
MI
Milly
10 months ago
Definitely B! Makes the most sense.
ED
Edison
11 months ago
I’m confused about the terms, but I think "subset" and "disjoint" don’t really capture the idea of exclusivity we need here.
SH
Shantell
11 months ago
I practiced a similar question where we had to identify constraints, and I feel like "incomplete disjoint" might fit this scenario.
LE
Leota
11 months ago
I'm not entirely sure, but I remember something about exclusive types needing to be disjoint. Could that be relevant here?
SC
Scot
11 months ago
I think the keywords should indicate that the subtypes don't cover all instances of Car, so maybe it's partial?
RO
Rosendo
12 months ago
I feel confident about this question. The key is understanding the difference between "not fully covered" and "exclusively." Based on the diagram and requirements, I believe the correct answer is A.
CH
Chantell
12 months ago
I'm not sure about this one. The options seem similar, and I want to make sure I don't overthink it. I'll re-read the question and diagram carefully before selecting an answer.
JA
Jackie
12 months ago
Okay, I've got this. The keywords I need to look for are the ones that indicate the set of Car instances is not fully covered by the subtypes, but an instance can only be one of the subtypes. I think the answer is A.
YU
Yun
1 year ago
Hmm, I'm a bit confused by the wording of the question. I need to make sure I understand the difference between "not fully covered" and "exclusively" before I choose an answer.
TH
Thersa
1 year ago
This looks like a tricky question, but I think I can figure it out. Let me carefully analyze the diagram and the requirements.
JA
Jacklyn
1 year ago
I think the correct answer is A) (not full, exclusive)
LI
Lizette
1 year ago
Hmm, this seems tricky. I'm going to go with B) (partial, exclusive). Sounds about right to me.
MA
Maryanne
1 year ago
User 1: I think the correct answer is B) (partial, exclusive).