Databases-ER-Model (GATE (Graduate Aptitude Test in Engineering) Computer Science): Questions 1 - 7 of 10

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Question number: 1

» Databases » ER-Model

MCQ▾

Question

What are different properties of data base over the file processing system-?

Choices

Choice (4) Response

a.

Entity set

b.

Atomicity problems

c.

Concurrent-access anomalies

d.

None of the above

Question number: 2

» Databases » ER-Model

MCQ▾

Question

A relation schema can be thought of as the basic information describing a ________ or ________.

Choices

Choice (4) Response

a.

Entity set

b.

relation

c.

a table or relation.

d.

Both b. and c. are correct

Question number: 3

» Databases » ER-Model

MCQ▾

Question

________ a key constraint that indicates that many of one entity can be associated with many of another entity.

Choices

Choice (4) Response

a.

Many-to-many relationship

b.

Relationship

c.

Entity set

d.

One-to-many relationship

Question number: 4

» Databases » ER-Model

MCQ▾

Question

A key constraint that indicates that one entity can be associated with many of another entity is called________

Choices

Choice (4) Response

a.

Entity set

b.

Relationship

c.

Many-to-many relationship

d.

One-to-many relationship

Question number: 5

» Databases » ER-Model

MCQ▾

Question

A property or description of an entity is called________?

Choices

Choice (4) Response

a.

Attribute

b.

Domain

c.

Entity set

d.

Relationship

Question number: 6

» Databases » ER-Model

MCQ▾

Question

Database System Applications are-

Choices

Choice (4) Response

a.

Finance

b.

Banking

c.

Human resources

d.

All a. , b. and c. are correct

Question number: 7

» Databases » ER-Model

MCQ▾

Question

Which is the central component of the DBMS software that can also be termed as the database control system:

Choices

Choice (4) Response

a.

Data manager

b.

Data Consistency?

c.

Data sharing

d.

Data integration

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