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MCQ

Q.

R diagrams by labeling the lines that connect ___________ to __________

A

Diamond , diamond

B

Rectangle, diamond

C

Rectangle, rectangle

D

Diamond, rectangle

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MCQ

1.

An entity set that does not have sufficient attributes to form a primary key is termed a __________

A

Strong entity set

B

Variant set

C

Weak entity set

D

Variable set

Discussion

MCQ

2.

Department (dept name, building, budget) and Employee (employee_id, name, dept name, salary) Here the dept_name attribute appears in both the relations. Here using common attributes in relation schema is one way of relating ___________ relations.

A

Attributes of common

B

Tuple of common

C

Tuple of distinct

D

Attributes of distinct

Discussion

MCQ

3.

Which of the following is another name for weak entity?

A

Child

B

Owner

C

Dominant

D

All of the above

Discussion

MCQ

4.

. In an E-R diagram attributes are represented by

A

rectangle

B

square

C

ellipse

D

triangle

Discussion

MCQ

5.

The Rectangles divided into two parts represents

A

Entity set

B

Relationship set

C

Attributes of a relationship set

D

Primary key

Discussion

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