Database Design Using Normalization MCQs with Explanations

disadvantage is the correct answer to “Needing to using more complicated SQL in database applications is a(n) ________ of normalization.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

advantage is the correct answer to “Eliminating modification anomalies is a(n) ________ of normalization.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

always is the correct answer to “Multivalued dependencies should ________ be eliminated.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

third step. is the correct answer to “When assessing the table structure of an acquired set of tables with data, accessing the validity of possible referential integrity constraints on foreign keys is (part of) the:”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

The inconsistent values problem is the correct answer to “Using the SQL GROUP BY phrase with a SELECT statement can help detect which of the following problems”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

second step. is the correct answer to “When assessing the table structure of an acquired set of tables with data, determining foreign keys is (part of) the:”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

commonly is the correct answer to “Creating a read-only database is a task that is ________ assigned to beginning database professionals.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column. is the correct answer to “Each answer below shows example data from a table. Which answer is an example of the general-purpose remarks column problem”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

read-only is the correct answer to “For a number of reasons, normalizations is not often an advantage for a(n) ________ database.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

BCNF. is the correct answer to “Most of the time, modification anomalies are serious enough that tables should be normalized into:”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

Three rows have the values Brown, NULL, and Blue in the same column. is the correct answer to “Each answer below shows example data from a table. Which answer is an example of the missing values problem”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

second step. is the correct answer to “When assessing the table structure of an acquired set of tables with data, determining functional dependencies is (part of) the:”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row. is the correct answer to “Each answer below shows example data from a table. Which answer is an example of the multivalue, multicolumn problem”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

first step. is the correct answer to “When assessing the table structure of an acquired set of tables with data, counting the number of table rows is (part of) the:”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

BCNF. is the correct answer to “If a table has been normalized so that all determinants are candidate keys, then that table is in:”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

never is the correct answer to “Read-only databases are ________ updated.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

neither an advantage nor disadvantage is the correct answer to “Needing to assess the validity of assumed referential integrity constraints on foreign keys is a(n) ________ of normalization.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

second step. is the correct answer to “When assessing the table structure of an acquired set of tables with data, determining primary keys is (part of) the:”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

eliminates is the correct answer to “Normalization ________ data duplication.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column. is the correct answer to “Each answer below shows example data from a table. Which answer is an example of the inconsistent values problem”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “When building a database from an existing set of tables, we may safely assume that referential integrity constraints have been enforced on the data we are given.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

True is the correct answer to “Most of the time, modification anomalies cause problems that are severe enough that a table should be normalized into BCNF.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

True is the correct answer to “When building a database from an existing set of tables, we still need to consider normalization principles.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “We have normalized a table into BCNF if all candidate keys are determinants.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “We use the SQL construct COLUMNS(*) to determine the number and type of columns in a table.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “One common design problem when designing a database from existing data is the use of a single cell in one column to store multiple values of an attribute.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “In all cases, normalization into BCNF is desirable.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “Denormalized tables are in BCNF.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

True is the correct answer to “We can eliminate modification anomalies with proper normalization that results in tables in BCNF.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “Proper normalization eliminates duplicated data.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

True is the correct answer to “The design guidelines and priorities for read-only databases are different because read-only databases are never updated.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

True is the correct answer to “The phrase "SALE.CNumber must exist in CUSTOMER.CNumber" is a referential integrity constraint.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

True is the correct answer to “We use the SQL construct COUNT(*) to count the number of rows in a table.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “When you are given a set of tables and asked to create a database to store their data, the first step is to create the new database.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “Multivalued dependencies create harmless anomalies that should be noted, but do not always need to be eliminated.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

True is the correct answer to “One common design problem when designing a database from existing data is the use of a general-purpose remarks column in the received data.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “One common design problem when designing a database from existing data is the presence of missing values, called blank values, in received data.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

True is the correct answer to “Normalization requires programmers to write more complex SQL.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

True is the correct answer to “One common design problem when designing a database from existing data is the presence of inconsistent values in the received data.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.

False is the correct answer to “When building a database from an existing set of tables, we may safely assume that there are no multivalued dependencies in the data we are given.”. This question is standard in competitive examination syllabi for Database Design Using Normalization.