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C170 WGU/ WGU C170 Exam Data Management Applications Exam New 2025 Version with Questions and Answers $28.99
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C170 WGU/ WGU C170 Exam Data Management Applications Exam New 2025 Version with Questions and Answers
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C170 WGU/ WGU C170 Exam Data Management Applications Exam New 2025 Version with Questions and Answers

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  • September 27, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • c170 wgu wgu c170 exam
  • c170 wgu wgu c170 exam data management applicati
  • c170 wgu wgu c170 exam data management
  • c170 wgu wgu c170 exam 2025
  • wgu c170 exam data management application exam

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C170 WGU/ WGU C170 Exam Data Management
Applications Exam New 2025 Version with Questions
and Answers
What does this syntax allow? ----------- Correct Answer ------------- Changing column types
Dropping indexes

What is the proper command to change a view? ----------- Correct Answer ------------- ALTER VIEW

Which optional clause added to a GRANT statement enables the account to give its own privileges to
other uses? ----------- Correct Answer ------------- WITH GRANT OPTION

What is the correct syntax to create an index to be built on the V_STATE field based on the database
information? ----------- Correct Answer ------------- ALTER TABLE 'Vendor' ADD INDEX 'state_index
('V_STATE');

Which clause when added to the end of a statement creates an index on the customer_id field?

Statement after foreign / primary key ----------- Correct Answer ------------- INDEX custid_index
(customer_id));

Which syntax is the correct way to use the DROP INDEX command to drop a primary key from a table? -
---------- Correct Answer ------------- DROP INDEX `PRIMARY` ON tableName;

In order to create a relationship between the Instructor and Course tables with two separate primary keys,
what should be done? ----------- Correct Answer ------------- Create a new column in the Course table for
Instructor ID

What is a characteristic of a database that is normalized to be the second normal form? ----------- Correct
Answer ------------- There are no values that are dependent on only part of a composite primary key

What is a characteristic of a database that is normalized to the third normal form? ----------- Correct
Answer ------------- All redundancy has been removed
There are no transitive dependencies

Dependencies that are based on only a part of a composite primary key are called transitive dependencies.
----------- Correct Answer ------------- False

Since a partial dependency can exist only if a table's primary key is composed of several attributes, if a
table in 1NF has a single-attribute primary key, then the table is automatically in 2NF. ----------- Correct
Answer ------------- True

Dependencies based on only a part of a composite primary key are known as _____ dependencies. --------
--- Correct Answer ------------- partial

A table that is in 2NF and contains no transitive dependencies is said to be in _____. ----------- Correct
Answer ------------- Third normal form

, Entity integrity is enforced automatically when the primary key is specified in the CREATE TABLE
command sequence ----------- Correct Answer ------------- True

UPDATE syntax ----------- Correct Answer ------------- UPDATE <table>
SET <column> = <value>,
WHERE condition;

If the attribute (B) is functionally dependent on a composite key (A) but not on any subset of that
composite key, the attribute (B) is fully functionally dependent on (A). ----------- Correct Answer ----------
--- True

A _________ is any key that uniquely identifies each row ----------- Correct Answer ------------- superkey

A ______ key can be described as a minimal superkey, a superkey without any unnecessary attributes ----
------- Correct Answer ------------- candidate key

Referential _____ dictates that the foreign key must contain values that match the primary key in the
related table, or must contain null. ----------- Correct Answer ------------- integrity

The CUSTOMER tables primary key is CUS_CODE the CUSTOMER primary key column has no null
entries, and all entries are unique.

This is an example of ________ integrity. ----------- Correct Answer ------------- entity

A ______ join links tables by selecting only two rows with common values in their common attribute(s). -
---------- Correct Answer ------------- natural

In which two ways can data redundancy affect managing disk space and calculation speed? -----------
Correct Answer ------------- Additional proccessing time is needed to udate redundant data
Redundant data takes up disk space

With which command can a database admin allow a user named Mary to query the Patient table by
executing SELECT commands on it ----------- Correct Answer ------------- GRANT SELECT ON
PATIENT TO 'Mary' @ 'localhost'

What does the WHERE identify in basic SQL SELECT statement ----------- Correct Answer -------------
The rows to be included in the result set

Which condition must be in effect to use the INSERT INTO ... VALUES syntax for an INSERT
statement ----------- Correct Answer ------------- The VALUES list must contain a value for each
attribute/column in the table

Which method creates an empty copy of a table and then populates it from the original table? -----------
Correct Answer ------------- CREATE TABLE newTableName LIKE tableName INSERT INTO
newTableName SELECT * FROM tableName;

ALTER TABLE tableName action [, action] ...;

An ______ only returns matched records from the tables that are being joined. ----------- Correct Answer -
------------ Inner join

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