General Questions

Question 6 :

Which of the following is a group of one or more attributes that uniquely identifies a row?


A). Key
B). Determinant
C). Tuple
D). Relation
Answer : Option A

Question 7 :

When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):


A). transitive dependency.
B). insertion anomaly.
C). referential integrity constraint.
D). normal form.
Answer : Option C

Question 8 :

A relation is considered a:


A). Column.
B). one-dimensional table.
C). two-dimensional table.
D). three-dimensional table.
Answer : Option C

Question 9 :

In the relational model, relationships between relations or tables are created by using:


A). composite keys.
B). determinants.
C). candidate keys.
D). foreign keys.
Answer : Option D

Question 10 :

A functional dependency is a relationship between or among:


A). tables.
B). rows.
C). relations.
D). attributes.
Answer : Option D