DBMS Basic

DBMS Basic

9th - 12th Grade

10 Qs

quiz-placeholder

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DBMS Basic

DBMS Basic

Assessment

Quiz

Computers

9th - 12th Grade

Hard

Created by

roohee walia

Used 3+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Attribute that can uniquely identify the tuples in

a relation is called _________

Key

Primary key

Candidate key

Alternate Key

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

An attribute which can uniquely identify tuples of the

table but is not defined as the primary key of the table.

Key

Composite key

Candidate key

Alternate Key

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Special value that is stored when actual data value is

unknown for an attribute.

Key

NULL

TUPLE

DATA

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Do foreign keys are allowed to have NULL values?

Yes

No

Maybe

None of the given

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Number of Tuples in a relation is known as ___________

Degree

Cardinality

Attribute

Primary key

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

__________ means same data are duplicated in

different places (files).

Isolation

Inconsistency

Redundancy

Dependence

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

__________ occurs when the same data maintained

in different places do not match

Isolation

Inconsistency

Redundancy

Dependence

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