Which ejb transaction attributes that require an existing transaction?

Question 23 / 57: Which of the following transactional settings requires the presence of an already existing transaction, else an exception is thrown?

A NotSupported

B Required

C Supports

D RequiresNew

E Mandatory

F Never

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Explanation:

"Mandatory" transactional behavior states that a method call requires an active transaction context, else an exception is thrown.

"Required" transactional behavior doesn't require an active existing transaction, in case of no transaction is there a new one will be started.

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