Answer / Umesh

{"attributes": "In EJB, transactions can be configured using TransactionAttribute annotation. Some common attributes include: Required (indicates that a transaction is necessary), RequiredNew (indicates that a new transaction should be started for each method invocation), RequiredNew or Required (indicates that if a transaction already exists, it will be joined; otherwise, a new one will be started), NotSupported (indicates that the container will not start a new transaction but will participate in any existing transaction), Mandatory (indicates that a transaction is necessary and must exist when the method is invoked), Never (indicates that the method should never be executed within a transaction))"}

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