S90.08 Online Practice Questions and Answers

Which of the following patterns may also require the application of the Service Agent pattern?

A. Reliable Messaging

B. Asynchronous Queuing

C. Intermediate Routing

D. Policy Centralization

Two services need to exchange a business document that exists as an XML document. Each service's contract uses a different XML schema to represent the business document structure. This results in two different XML representations for the same business data. Which of the following patterns can be used to enable the exchange of the business document between these two services?

A. Data Format Transformation

B. Protocol Bridging

C. Atomic Service Transaction

D. Data Model Transformation

A common XML-based technology used to apply the Data Model Transformation pattern is:

A. XHTML

B. WS-Policy

C. WSDL

D. None of the above.

When applying the Schema Centralization pattern, multiple services can form dependencies on the same centralized schema.

A. True

B. False

Which of the following is a common problem associated with the application of the Policy Centralization pattern?

A. Changes to a shared policy definition can affect all services that rely upon it, which in turn, can affect all service consumers that have formed dependencies on the corresponding service contracts.

B. Changes to a shared data model can affect all services that rely upon it, which in turn, can affect all service consumers that have formed dependencies on the corresponding service contracts.

C. Changes to a shared database can affect all services that rely upon it, which in turn, can affect all service consumers that have formed dependencies on the corresponding service contracts.

D. None of the above.

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.

An atomic service transaction requires that:

A. alternative compensating logic is executed to undo changes that may have been committed by the services participating in a transaction

B. a service participating in a transaction either commit or rollback changes in response to the success or failure of the transaction

C. services be designed to be aware of all the other services that have also registered as participants in the same transaction in order to exchange success or failure messages with them

D. None of the above.

A service fa?ade component can be used to abstract the part of a service architecture that has negative coupling potential.

A. True

B. False

The Service Fa?ade pattern is often applied in order to separate the from the underlying service implementation so that they can evolve independently.

A. service agent

B. service contract

C. service activity

D. None of the above.

A typical service-oriented enterprise architecture specification can encompass:

A. only one service inventory

B. multiple service inventories

C. non-service-oriented technology architectures

D. None of the above.