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MCQ

Q.

The tuples of the relations can be of ________ order.

A

Any

B

Same

C

Sorted

D

Constant

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MCQ

1.

Which of the following indicates the maximum number of entities that can be involved in a relationship?

A

Minimum cardinality

B

Maximum cardinality

C

ERD

D

Greater Entity Count

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2.

Which of the following is another name for weak entity?

A

Child

B

Owner

C

Dominant

D

All of the above

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3.

In the relational modes, cardinality is termed as:

A

Number of tuples.

B

Number of attributes.

C

Number of tables.

D

Number of constraints.

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4.

Functional dependencies are a generalization of

A

Key dependencies

B

Relation dependencies

C

Database dependencies

D

None of the mentioned

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5.

E-R model uses this symbol to represent weak entity set ?

A

Dotted rectangle.

B

Diamond

C

Doubly outlined rectangle

D

None of these

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