1Z0-807問題集、Oracle実際の試験問題

質問 1

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 accessibility across clients may require more development.

C. Maintaining current performance could require more hardware.

D. Maintaining securitywithin the page could be more difficult.

E. Maintaining page navigability for users would have to be re-evaluated.

正解: D

質問 2

Upper management has announced a change in a company's primary hardware supplier for the next year, the timing of this change coincides with key purchases that line of business department has to make in support of its Java EE application upgrade/redesign project.
You are asked to help outline a strategy to preserve the project timeline and keep hardware training costs contained.
Which recommendation will you make?

A. Request more time to consider the total cost of change to your project and to modify your budget.

B. Add new hardware to create a heterogeneous environment.

C. Request another year of sales and support with the existing vendor.

D. Use new hardware on the web tier and redeploy existing hardware to the other tiers.

正解: B

質問 3

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. JDBC

B. Swing

C. AWT

D. JPA

E. CMP

正解: A,B

解説: (PassTest メンバーにのみ表示されます)

質問 4

You are the architect at ACME, a large global retailer of festival and holiday accessories. ACME wants to launch a new shopping portal for the holiday shopping session, allowing two months from project inception to going live. The portal must contain in-house and third-party stock to attack customers.
Fast response times are also critical so users remain engaged and sticky to the portal.
What would you recommend to the ACME project team to deliver this project?

A. Access all content regardless of source using the HTML 5 XML parsing capabilities of the browser

B. Access as much content with bulk-loading as possible; use JSONP to access the remainder.

C. Access all third party content using JSON to dynamically load it from the browser.

正解: B

質問 5

A company is extending its successful social networking site to support the following channels: instant messaging (IM), email messaging and text messaging/SMS. At present, the site has scaled 400% in one year using a standard MVC Web framework. the application experiences large surges or spikes in demand and also periods of inactivity. Notification delivery to the three channels does not need to be guaranteed.
Which solutions extends the current architecture and best meets the company's requirements?

A. Insert the messages into a database and use entity beans to read the messages using JDBC and send notifications.

B. Insert the messages into a database and use plain old Java Objects (POJOs) to read the messaging using JDBC and send notifications.

C. Place messaging on a Java messaging Service (JMS) queue and use message-driven beans (MDBs) to create and send notifications.

D. Send the notification inline, that is, within the normal HTTP request-response cycle.

正解: C

質問 6

Which two are objectives of the Abstract Factory pattern?

A. To separate the construction of a complex object from its representation

B. To create whole-part hierarchies

C. To create families of related objects

D. To enforce dependencies between concrete classes

E. To specify the types of objects to create by using a sample instance

正解: C,D

質問 7

Which two measures are most effective in protecting websites from cross site scripting (XSS) attacks?

A. Treat all user-supplied input as unsafe, and white list known good characters

B. Ensure that thesession cookie is sent only onHTTPSconnections.

C. Escape "<" and ">" parameters that displayed or evaluated by the JavaScript interpreter.

D. URL-encode "<" and ">"parameters so they will never be evaluated by the JavaScript Interpreter.

E. Execute all user-supplied scripts in aserver-side sandbox.

正解: B,E

質問 8

You are consulting with a team that has maintained several legacy database for years. They have reviewed the JPA spec and are wondering if the technology would offer benefits over this current SQL base.
Which statement identifies a risk of adopting JPA?

A. JPA doesn't provides ACID semantics.

B. JPA may be able to model every table as a class.

C. JPA could render code that requires extensive SQL tuning to perform well.

D. JPA's query languagerelies on a container to manage the persistence layer.

E. JPA only works with well-known data models.

正解: C

質問 9

Which are the objectives of the Strategy pattern? (Choose Two)

A. To decouple an abstraction horn its implementation so that the two can vary independently

B. To define a family of algorithms, encapsulate each one, and make them interchangeable

C. To define an object that encapsulates how a set of objects interacts

D. To define the skeleton of an algorithm, deferring some steps to subclasses

E. To allow subclasses to redefine certain steps of an algorithm without changing the algorithm's structure

正解: C,E

Oracle Java EE 6 Enterprise Architect Certified Master - 1Z0-807 模擬練習