WGU D427 Database Management Applications Pre-
Assessment And Objective Assessment Accurate And
Verified Exams For Guaranteed Pass Latest Update
1. San Francisco, CA 94110 USA
How many attributes are present in the address fragment?
-1
-2
-3
- 4--- correct answer --- 4
2. The Package table has the following columns: Weight—decimal
Description—optional variable length string LastChangedDate—date
TrackingNumber—integer
Which column should be designated the primary key for the Package table?
- Weight
- Description
- LastChangedDate
- TrackingNumber--- correct answer --- Tracking Number
3. Which data type will store "2022-01-10 14:22:12" as a temporal value
without loss of information?
,- DATE
- DATETIME
- DECIMAL
- BIGINT--- correct answer --- DATETIME
4. Which SQL command is an example of data definition language (DDL)?
- UPDATE
- ALTER
- SELECT
- DELETE--- correct answer --- CREATE, ALTER, OR DROP
5. How would a database engine process an update that violates a
RESTRICT referential integrity constraint?
- The offending value would be set to the database default.
- The update would be rejected by the database.
- The offending value would be changed to NULL.
- The updated value would flow to the primary key.--- correct answer --- The
update would be rejected by the database.
6. Which restriction applies when using a materialized view?
- The users of the view must provide search terms.
- The underlying data must be periodically refreshed.
, - The tables referenced in the view must be indexed.
- The rows in the table must be compressed.--- correct answer --- The
underlying data must be periodically refreshed.
7. Which query illustrates performing an outer join of the Movie table
with a different table?
- SELECT M.Title, A.Actor FROM Movie M, Actor A WHERE M.ActorID =
A.ID
- SELECT M.Title, A.Actor FROM Movie M LEFT JOIN Movie MB ON
M.ID, Actor A
- SELECT M.Title, A.Actor FROM Movie M RIGHT JOIN Actor A ON
M.ActorID = A.Id
- SELECT M.Title, A.Actor FROM Movie M
INNER JOIN Actor A ON M.ActorID = A.ID--- correct answer --- SELECT
M.Title, A.Actor FROM Movie M
LEFT JOIN Movie MB ON M.ID Actor A
8. Assume there are two tables, A and B.
Which rows will always be included in the result set if Table A is inner
joined with Table B?
Assessment And Objective Assessment Accurate And
Verified Exams For Guaranteed Pass Latest Update
1. San Francisco, CA 94110 USA
How many attributes are present in the address fragment?
-1
-2
-3
- 4--- correct answer --- 4
2. The Package table has the following columns: Weight—decimal
Description—optional variable length string LastChangedDate—date
TrackingNumber—integer
Which column should be designated the primary key for the Package table?
- Weight
- Description
- LastChangedDate
- TrackingNumber--- correct answer --- Tracking Number
3. Which data type will store "2022-01-10 14:22:12" as a temporal value
without loss of information?
,- DATE
- DATETIME
- DECIMAL
- BIGINT--- correct answer --- DATETIME
4. Which SQL command is an example of data definition language (DDL)?
- UPDATE
- ALTER
- SELECT
- DELETE--- correct answer --- CREATE, ALTER, OR DROP
5. How would a database engine process an update that violates a
RESTRICT referential integrity constraint?
- The offending value would be set to the database default.
- The update would be rejected by the database.
- The offending value would be changed to NULL.
- The updated value would flow to the primary key.--- correct answer --- The
update would be rejected by the database.
6. Which restriction applies when using a materialized view?
- The users of the view must provide search terms.
- The underlying data must be periodically refreshed.
, - The tables referenced in the view must be indexed.
- The rows in the table must be compressed.--- correct answer --- The
underlying data must be periodically refreshed.
7. Which query illustrates performing an outer join of the Movie table
with a different table?
- SELECT M.Title, A.Actor FROM Movie M, Actor A WHERE M.ActorID =
A.ID
- SELECT M.Title, A.Actor FROM Movie M LEFT JOIN Movie MB ON
M.ID, Actor A
- SELECT M.Title, A.Actor FROM Movie M RIGHT JOIN Actor A ON
M.ActorID = A.Id
- SELECT M.Title, A.Actor FROM Movie M
INNER JOIN Actor A ON M.ActorID = A.ID--- correct answer --- SELECT
M.Title, A.Actor FROM Movie M
LEFT JOIN Movie MB ON M.ID Actor A
8. Assume there are two tables, A and B.
Which rows will always be included in the result set if Table A is inner
joined with Table B?
