
DBMS Basic

Quiz
•
Computers
•
9th - 12th Grade
•
Hard
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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