1Z0-807 試験問題を無料オンラインアクセス

Which statement is true about the use of security-related annotations in an enterprise bean?

• A.They can be used to specify permissions only on business methods.
• B.They can be used to change an authentication mechanism.
• C.They can be used to acquire a secure connection using SSL.
• D.They can be used to specify permissions on a class or its business methods.
• E.They can be inherited from a parent abstract class.

A travel company re-architects its application from a two-tier to a three-tier architecture. To see what impact the new architecture has on its non-functional requirements (NFR), the company intends to build a prototype based on the new architecture.
The company compares the NFR metrics associated with the new prototype against the metrics from their original two-tier solution.
Which option is an advantage of the original two-tier solution?

• A.It has better scalability because each client can access the database independently of other clients.
• B.It has better performance because each client must use its own set of domain objects.
• C.It has better manageability because each client has its own copy of the application.

Which type of application would benefit from using the Singleton pattern?

• A.A clustered application that can support 200 concurrent users.
• B.An application that requires remote monitoring capabilities
• C.An application that interacts with external systems in parallel fashion.

While analyzing an existing web application, you observe the following issues in the source code:
-Duplicatecontrol code is scattered throughout various view. -Businessand presentationlogicare mixed within these view.
The next phase of the project involves refactoring the existing code to address these two issues.
Which design pattern, if employed in the refactoring exercise, would most directly address the two issues?

• A.DAO
• B.Composite View
• C.Dispatcher view
• D.Service to Worker

You are integrating with a single legacy Enterprise Information System. You are interested in the transaction management capabilities of Java Connector Architecture. This new system needs the capability to invoke multiple operations against this single legacy system. these operations succeeded together or fail together as a group.
To which minimum level of transaction management do you set your resource adapter?

• A.Local transaction
• B.Distributed transaction
• C.No transaction
• D.Container-managed transaction