What should you recommend?

You are designing a Windows Presentation Foundation (WPF) application. The WPF

application displays indicators to compare your company’s past performance to the current
day’s operations data. The WPF application accesses historic data from your company’s
data warehouse through a Web service, and accesses current data directly from a Microsoft
SQL Server 2008 database. The WPF application must meet the following requirements:
Retrieve historic data from the data warehouse at application startup and then once per day.
Retrieve current data from the database every five minutes, and then update the indicators.
Cache all retrieved data. Target the .NET Framework 4 Client Profile. You need to
recommend an approach to data caching. What should you recommend?

You are designing a Windows Presentation Foundation (WPF) application. The WPF

application displays indicators to compare your company’s past performance to the current
day’s operations data. The WPF application accesses historic data from your company’s
data warehouse through a Web service, and accesses current data directly from a Microsoft
SQL Server 2008 database. The WPF application must meet the following requirements:
Retrieve historic data from the data warehouse at application startup and then once per day.
Retrieve current data from the database every five minutes, and then update the indicators.
Cache all retrieved data. Target the .NET Framework 4 Client Profile. You need to
recommend an approach to data caching. What should you recommend?

A.
Use System.Web.Caching with a sliding expiration.

B.
Use System.Runtime.Caching with an absolute expiration.

C.
Use System.Runtime.Caching with a sliding expiration.

D.
Use System.Web.Caching with are absolute expiration.



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