# Q1: For a number of reasons, normalizations is not often an advantage for a(n) ________ database.

B updateable
C either a read-only or an updateable
D None of the above is correct.

A 1NF
B 2NF
C 3NF
D BCNF.

A always
B commonly
C seldom
D never

A first step.
B second step.
C third step.
D fourth step.

# Q5: Each answer below shows example data from a table. Which answer is an example of the multivalue, multicolumn problem?

A Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row.
B Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column.
C Three rows have the values Brown, NULL, and Blue in the same column.
D One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column.

A eliminates
B reduces
C increases
D maximizes

A always
B commonly
C seldom
D never

A first step.
B second step.
C third step.
D fourth step.

A 1NF
B 2NF
C 3NF
D BCNF.

A always
B commonly
C seldom
D never

# Q13: Using the SQL GROUP BY phrase with a SELECT statement can help detect which of the following problems?

A The multivalue, multicolumn problem
B The inconsistent values problem
C The missing values problem
D The general-purpose remarks column problem

A first step.
B second step.
C third step.
D fourth step.

A first step.
B second step.
C third step.
D fourth step.

# Q17: Each answer below shows example data from a table. Which answer is an example of the general-purpose remarks column problem?

A Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row.
B Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column.
C Three rows have the values Brown, NULL, and Blue in the same column.
D One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column.

# Q18: Each answer below shows example data from a table. Which answer is an example of the inconsistent values problem?

A Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row.
B Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column.
C Three rows have the values Brown, NULL, and Blue in the same column.
D One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column.

# Q19: Each answer below shows example data from a table. Which answer is an example of the missing values problem?

A Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row.
B Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column.
C Three rows have the values Brown, NULL, and Blue in the same column.
D One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column.

# Q20: When assessing the table structure of an acquired set of tables with data, determining foreign keys is (part of) the:

A first step.
B second step.
C third step.
D fourth step.

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