A developer is d

题目

A developer is designing a multi-tier web application and discovers a need to hide the details of establishingand maintaining remote communications from the client. In addition, the application needs to find,in a transparent manner,the heterogeneous business components used to service the client’s requests. Which design patterns, working together, address these issues?()

  • A、Business Delegate and Transfer Object
  • B、Business Delegate and Service Locator
  • C、Front Controller and Business Delegate
  • D、Intercepting Filter and Transfer Object
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相似问题和答案

第1题:

Which of the following functions is associated with the developer unit?()

  • A、Supplies toner to the photoconductor
  • B、Charges the surface of the photoconductor
  • C、Writes the latent image on the photoconductor
  • D、Cleans the photoconductor

正确答案:A

第2题:

A developer is designing a web application which extensively uses EJBs and JMS.  The developer finds that there is a lot of duplicated code to build the JNDI contexts to access the beans and queues. Further, because of the complexity, there are numerous errors in the code.  Which J2EE design pattern provides a solution for this problem?()

  • A、 Command
  • B、 Transfer object
  • C、 Service locator
  • D、 Session Façade
  • E、 Business delegate
  • F、 Data access object

正确答案:C

第3题:

目前,具有代表性的CASE工具有______。

A.UNIFACE

B.Erwin

C.PowerBuilder

D.Developer2000


正确答案:B

第4题:

Where should a Developer go to freely manipulate inline style coding for an object?()

  • A、Design
  • B、Source
  • C、Properties
  • D、Controls

正确答案:B

第5题:

开发者(developer)是唯一一类需要特殊权限组完成自己工作的数据库用户


正确答案:正确

第6题:

Squeaky Beans Inc. hired an outside consultant to develop their web application. To finish the job quickly, the consultant created several dozen JSP pages that directly communicate with the database. The Squeaky business team has since purchased a set of business objects to model their system, and the Squeaky developer charged with maintaining the web application must now refactor all the JSPs to work with the new system.  Which pattern can the developer use to solve this problem?()

  • A、 Transfer Object
  • B、 Service Locator
  • C、 Intercepting Filter
  • D、 Business Delegate

正确答案:D

第7题:

以下哪几项是Oracle客户端连接工具()

  • A、OEM
  • B、SQL*PLUS
  • C、NETCA
  • D、PLSQL DEVELOPER

正确答案:A,B,D

第8题:

( )是Oracle数据库管理系统提供的OLAP工具。A.Developer/2000 B.PowerBuilder/2000C.Discoverer/2000 D. Designer/2000


正确答案:C
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第9题:

Given the security constraint in a DD:// 101. 102. 103.Foo 104./Bar/Baz/* 105.POST 106. 107. 108.DEVELOPER 109. 110. And given that "MANAGER" is a valid role-name,which four are true for this security constraint?()

  • A、MANAGER can do a GET on resources in the /Bar/Baz directory.
  • B、MANAGER can do a POST on any resource in the /Bar/Baz directory.
  • C、MANAGER can do a TRACE on any resource in the /Bar/Baz directory.
  • D、DEVELOPER can do a GET on resources in the /Bar/Baz directory.
  • E、DEVELOPER can do only a POST on resources in the /Bar/Baz directory.
  • F、DEVELOPER can do a TRACE on any resource in the /Bar/Baz directory.

正确答案:A,C,D,F

第10题:

A developer has created a special servlet that is responsible for generating XML content that is sent to adata warehousing subsystem. This subsystem uses HTTP to request these large data files, which are compressed by the servlet to save internal network bandwidth. The developer has received a request frommanagement to create several more of these data warehousing servlets. The developer is about to copyand paste the compression code into each new servlet. Which design pattern can consolidate thiscompression code to be used by all of the data warehousing servlets?()

  • A、Facade
  • B、View Helper
  • C、Transfer Object
  • D、Intercepting Filter
  • E、Composite Facade

正确答案:D

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