help1402

It's UWAweek 47

help1402

This forum is provided to promote discussion amongst students enrolled in CITS1402 Relational Database Management Systems.

Please consider offering answers and suggestions to help other students! And if you fix a problem by following a suggestion here, it would be great if other interested students could see a short "Great, fixed it!" followup message.

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UWA week 35 (2nd semester, week 6) ↓

Mid Exam Sample Questions (all 3)

11:02am Wed 28th Aug, ANONYMOUS

I am really struggling with this whether the correct answer is C or D? Which of the following statements is true regarding the representation of foreign keys in an Entity-Relationship Diagram (ERD) using UML notation? A. Foreign keys are explicitly shown as attributes in the entity boxes. B. Foreign keys are represented by dashed lines connecting entities. C. Foreign keys are implicitly represented by the relationships between entities and are not shown as attributes. D. Foreign keys are not used in UML-based ERDs.

Mid Exam Sample Questions (all 3)

3:26pm Wed 28th Aug, ANONYMOUS

ANONYMOUS wrote:

> I am really struggling with this whether the correct answer is C or D? > > Which of the following statements is true regarding the representation of foreign > keys in an Entity-Relationship Diagram (ERD) using UML notation? > A. Foreign keys are explicitly shown as attributes in the entity boxes. > B. Foreign keys are represented by dashed lines connecting entities. > C. Foreign keys are implicitly represented by the relationships between entities and are > not shown as attributes. > D. Foreign keys are not used in UML-based ERDs.

Personally, I would pick the option C. The FK is explained in the relationship and thats the reason why it is not shown as attributes. * Note: I might be wrong.

Mid Exam Sample Questions (all 3)

4:30pm Wed 28th Aug, Mengxi L.

yes, C is the correct answer.

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