In JPA Transaction Processing, If the Operations Execute Successfully, You

question 10

Multiple Choice

In JPA transaction processing, if the operations execute successfully, you call EntityTransaction method _______ to commit the changes to the database. If any operation fails, you call EntityTransaction method ________ to return the database to its state prior to the transaction.

• A) apply, rollback
• B) commit, restore
• C) apply, restore
• D) commit, rollback

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Definitions:

Sample

A portion of the overall population picked for conducting studies or inquiries in order to collect demographic data.

Frequency Polygon

A graphical representation of the distribution of a dataset that shows how often each value occurs, connecting each data point by straight lines.

Frequency Distribution

A summarization of data by reporting the number of observations that fall within each range or bin of values for a specific variable.

Pie Graph

A circular chart divided into sectors, each sector shows the relative size of each value to the total.