Advanced SOA Design & Architecture: S90.08

Which of the following statements is false?

A. Widespread use of the Messaging Metadata pattern can be seen in the emergence of many WS-* extensions that define industry standard SOAP header blocks that carry metadata.

B. Messaging frameworks and technologies need to provide support for the reading and writing of message headers or properties in order to fully support the application of the Messaging Metadata pattern.

C. The Messaging Metadata pattern is not applicable to situations where the message sender and receiver need to participate in stateful or conversational message exchanges.

D. The Messaging Metadata pattern can support the application of patterns such as Intermediate Routing by supplementing messages with activity-specific metadata.

Protocol bridging features are a common part of enterprise service bus products and can be provided through the use of adapters.

A. True

B. False

Which of the following statements is true?

A. A compensating service transaction always exists within the scope of an atomic service transaction.

B. The application of the Compensating Service Transaction pattern relies heavily upon an underlying database that supports the rollback of changes.

C. A compensating service transaction is only used in situations where the rollback of changes across services needs to be guaranteed.

D. None of these statements are true.