多項(xiàng)選擇題

You are designing an n-tier Java EE application. You have already decided that some of your JSPs willneed to get data from a Customer entity bean. You are trying to decide whether to use a Customer stubobject or a Transfer Object.
Which two statements are true？（）

A.The stub will increase network traffic.
B.The Transfer Object will decrease data staleness.
C.The stub will increase the logic necessary in the JSPs.
D.In both cases， the JSPs can use EL expressions to get data.
E.Only the Transfer Object will need to use a Business Delegate.

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單項(xiàng)選擇題

A developer is designing the presentation tier for a web application which requires a centralized requesthandling to complete common processing required by each request.
Which design pattern provides asolution to this problem？（）

A.Remote Proxy
B.Front Controller
C.Service Activator
D.Intercepting Filter
E.Business Delegate

多項(xiàng)選擇題

In an n-tier application， which two invocations are typically remote， not local？（）

A.JSP to Transfer Object
B.Service Locator to JNDI
C.Controller to request object
D.Transfer Object to Entity Bean
E.Controller to Business Delegate

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You are designing an n-tier Java EE application. You have already decided that some of your JSPs willneed to get data from a Customer entity bean. You are trying to decide whether to use a Customer stubobject or a Transfer Object. Which two statements are true？（）

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A developer is designing the presentation tier for a web application which requires a centralized requesthandling to complete common processing required by each request. Which design pattern provides asolution to this problem？（）

In an n-tier application， which two invocations are typically remote， not local？（）

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You are designing an n-tier Java EE application. You have already decided that some of your JSPs willneed to get data from a Customer entity bean. You are trying to decide whether to use a Customer stubobject or a Transfer Object.
Which two statements are true？（）

A developer is designing the presentation tier for a web application which requires a centralized requesthandling to complete common processing required by each request.
Which design pattern provides asolution to this problem？（）

In an n-tier application， which two invocations are typically remote， not local？（）