During conceptual database design, you may determine that an attribute is multi$-$valued. An example of this would be $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

Question $1$Select one:

a$.$

mailing address

b$.$

birthdate

c$.$

age

d$.$

telephone numbers

e$.$

none of the above

Question $2$

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Integrity constraints to be checked during logical database design include $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

Question $2$Select one:

a$.$

required data values $($i$.$e$.,$ non$-$NULL$)$

b$.$

attribute domains

c$.$

referential integrity

d$.$

all of the above

e$.$

none of the above

Question $3$

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Relationships are typically found by looking for $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ in the user requirements descriptions.

Question $3$Select one:

a$.$

adjectives

b$.$

adverbs

c$.$

nouns

d$.$

verbs

e$.$

none of the above

Question $4$

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Entities are typically found by looking for $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ in the user requirements descriptions.

Question $4$Select one:

a$.$

verbs

b$.$

nouns

c$.$

adverbs

d$.$

adjectives

e$.$

none of the above

Question $5$

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Which of the following would not be considered a candidate key for an EMPLOYEE relation?

Question $5$Select one:

a$.$

Employee ID

b$.$

Social Insurance Number

c$.$

Postal Code

d$.$

All of the above

e$.$

None of the above