General Questions

Question 11 :

Table is synonymous with the term:


A). recor
B). relation.
C). column.
D). field.
Answer : Option B

Question 12 :

Which of the following is not a restriction for a table to be a relation?


A). The cells of the table must contain a single value.
B). All of the entries in any column must be of the same kind.
C). The columns must be ordered.
D). No two rows in a table may be identical.
Answer : Option C

Question 13 :

For some relations, changing the data can have undesirable consequences called:


A). referential integrity constraints.
B). modification anomalies.
C). normal forms.
D). transitive dependencies.
Answer : Option B

Question 14 :

A key:


A). must always be composed of two or more columns.
B). can only be one column.
C). identifies a row.
D). identifies a column.
Answer : Option C

Question 15 :

An attribute is a(n):


A). column of a table.
B). two dimensional table.
C). row of a table.
D). key of a table.
Answer : Option A