Menu

Question Discussion & Solution

MCQ

Q.

Which of the following is another name for weak entity?

A

Child

B

Owner

C

Dominant

D

All of the above

Community Discussion

No discussions yet. Be the first to start!

You must be logged in to participate in the discussion.

Login to Discuss

Similar Questions

MCQ

1.

In E-R diagram generalization is represented by

A

Ellipse

B

Dashed ellipse

C

Rectangle

D

Triangle

Discussion

MCQ

2.

Let us consider phone_number ,which can take single or several values . Treating phone_numberas an _________ permits instructors to have several phone numbers (including zero) associated with them.

A

Entity

B

Attribute

C

Relation

D

Value

Discussion

MCQ

3.

For each attribute of a relation, there is a set of permitted values, called the ________ of that attribute.

A

Domain

B

Relation

C

Set

D

Schema

Discussion

MCQ

4.

What is a relationship called when it is maintained between two entities?

A

Unary

B

Binary

C

Ternary

D

Quaternary

Discussion

MCQ

5.

Which one of the following uniquely identifies the elements in the relation?

A

Secondary Key

B

Primary key

C

Foreign key

D

Composite key

Discussion

More Database Management System Topics

Miscellaneous or General

71 MCQs

Relational Algebra

3 MCQs

Database Systems

49 MCQs

Data Models

16 MCQs

The Relational Database Model

58 MCQs

Entity Relationship (ER) Modeling

59 MCQs

Advanced Data Modeling

1 MCQs

Normalization

58 MCQs

Structured Query Language (SQL)

7 MCQs

Advanced SQL

90 MCQs

Database Design

2 MCQs

Transaction and Concurrency

10 MCQs

Data Warehouses

10 MCQs

Database Administration

1 MCQs

Mixed

10 MCQs