WGU Question and answers verified to pass 2024 WGU - Pre-Assessment: Data Management - Applications (FJO1) (PFJO)
A salesperson is authorized to sell many products and a product can be sold by many salespersons.
Which kind of binary relationship does this scenario describe? - correct answe...
WGU - D427 - Data Management -
Applications - PreAssessment
San Francisco, CA 94110
USA
How many attributes are present in the address fragment?
-1
-2
-3
-4
4
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
Tracking Number
Which data type will store "2022-01-10 14:22:12" as a temporal value without
loss of information?
- DATE
- DATETIME
- DECIMAL
,- BIGINT
DATETIME
Which SQL command is an example of data definition language (DDL)?
- UPDATE
- ALTER
- SELECT
- DELETE
CREATE, ALTER, OR DROP
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.
The update would be rejected by the database.
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.
The underlying data must be periodically refreshed.
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
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