C2140-819：最新的IBM認證C2140-819考題，Rational Application Developer V8 Associate 認證

問題1
An organization is considering using Web 2.0 technologies in all projects in order to improve their web applications. Which application would benefit most from the use of Web
2.0 technologies?

A. an EJB application that implements a banking backend application

B. a web services project

C. an existing JSF-based application that has been completed but has serious performance problems

D. an existing web-based application where the user interface is being revitalized

正確答案: D

問題2
An existing Web 2.0 application has several Ajax functions and an effective interface. It calls server side logic using XMLHttpRequest to pass and receive XML messages. When would using JSON messages on all Web 2.0 applications dramatically improve the performance of the application?

A. when the browser's HTML renderer is able to display the results much clearer when information is conveyed using JSON

B. when the application servlets are able to process the requests more efficiently and better integrate with the backend systems

C. when the application uses a web service call using JSON between the web page and backend, then the web service will be able to use Web Service Security

D. when the existing Ajax functions pass large XML messages, and using JSON will reduce the size of the messages

正確答案: D

問題3
Which view shows the output to the System.out file?

A. Display view

B. Console view

C. Breakpoints view

D. Debug view

正確答案: B

問題4
When do connection pools simplify resource allocation?

A. when the resources are deployed on a single server instead of multiple servers.

B. when the resources are allocated from the same data source each time a call is made

C. when the resources are allocated from data sources and not from places in the code

D. when the resources are no longer required to be allocated from the application server

正確答案: C

問題5
In Page Designer, the Preview pane shows you how the current page is likely to look when viewed in an external web browser. Which browsers can be used inside RAD to render the preview?

A. Windows Internet Explorer only

B. Windows Internet Explorer or Mozilla Firefox

C. Mozilla Firefox only

D. No browser can be run inside RA To preview, you need to use the Tools > Launch External Web Browser menu option to open the current file in the default web browser.

正確答案: B

問題6
A developer has enabled multiple breakpoints on the application code. While debugging, the developer needs to skip all the breakpoints on the code from the Breakpoint view after excecuting a particular breakpoint. Which action skips the breakpoint?

A. restart the server under profile mode

B. click the Skip All Breakpoints icon

C. click on each application code breakpoint and remove them one by one

D. select Window -> Preference -> Debug -> Terminate all Breakpoints

正確答案: B

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