Database - Data Models into Database Designs

Exercise : Data Models into Database Designs - General Questions
16.
Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship?
MUST COVER
MUST NOT
Both of the above.
None of the above is correct.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

17.
Each entity is represented as a(n):
tuple.
table.
attribute.
file.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

18.
For every relationship, how many possible sets of minimum cardinalities are there?
Two
Three
Four
Six
Answer: Option
Explanation:
No answer description is available. Let's discuss.

19.
If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same change will automatically be made to any corresponding foreign key value.
the primary key
any alternate key
a surrogate key
a foreign key
Answer: Option
Explanation:
No answer description is available. Let's discuss.

20.
Which of the following column properties would be used to specify that cells in a column must contain a monetary value that is less than another monetary value in the same row?
Null status
Data type
Default value
Data constraints
Answer: Option
Explanation:
No answer description is available. Let's discuss.