Free Oracle 1Z0-807 Exam Dumps Questions & Answers

Your development team wants to use Google Guice. A previous architect assigned this request a low priority, citing the complexity of integration and no compelling benefits statements from the requesting team.
The team claims that their colleagues have achieved the integration using a pattern. This pattern reduced the level of difficulty and risk and did not require vendor support.
Which pattern fits this description?

• A.  Context Holder
• B.  Bean Locator
• C.  DependencyInjectionExtender
• D.  Service Starter

You are implementing an online music application that will store and play a user's collection of songs. You want users to rate their songs and view the top songs from friends. All queries must complete in four seconds or less.
Which approach would meet the response time requirement with minimal overhead?

• A.  Java class that uses JDBC with embedded SQL
• B.  JPA entity class with a lazy fetching strategy
• C.  Java class that uses an optimized stored procedure
• D.  JPA entity class with an eager fetching strategy

Your CMC wants to move several web based search applications to an AJAX model, hoping to improve user engagement with a browser experience that feels smaller and more responsive.
Which identifies a drawback to consider when adopting an AJAX model to improve user experience?

• A.  Maintaining a scalable system could require redesigning applications.
• B.  Maintaining current performance could require more hardware.
• C.  Maintaining accessibility across clients may require more development.
• D.  Maintaining page navigability for users would have to be re-evaluated.
• E.  Maintaining securitywithin the page could be more difficult.

A company has been soiling a desktop based billing application that has Character User Interface (CUI) application developed by using Java. The company would like to release the next version of this application with the following features: a GUI with a pluggable look- and-feel capability and the flexibility to support multiple database vendors.
Which two technologies would you use in the new version?

• A.  CMP
• B.  JDBC
• C.  JPA
• D.  AWT
• E.  Swing

You are the architect for XYZ bank. XYZ is redesigning their online banking offering and you need to ensure that the new design follows security best practices for the JEE platform.
Select three security best practices for JEE applications.

• A.  Treat users as untrusted even when authenticated.
• B.  Schedule regular penetration testing.
• C.  Implement an exception-handling strategy.
• D.  Use both programmatic and declarative security.
• E.  Log all security related application events.
• F.  Encrypt data, both on the wire and at rest.