Which feature/offering of Oracle Application Grid makes it particularly easy to significantly increase the performance of Web-based applications with no code change ？ （）

单项选择题WhywouldyouuseWebLogicDiagnosticsFramework（WLDF）insteadofOracleEnterpriseManager（OEM）（）

A. WLDF has better performance than OEM 
B. my organization already has a solution for unified management and monitoring； we need to supplement that with some specific WLS-related capabilities
C. OEM is not certified with latest version of WLS
D. OEM is really focused on the database tier， is not meant to address JEE management and monitoring

多项选择题WhichtwostatementsaretrueaboutOracleRealApplicationsInsight？（）

A. it provides enhanced visibility across the entire application infrastructure 
B. it provides a set of management tools that enable automation of configuraion
C. it significantly increases the performance of Web-based applications with no code change
D. it dramatically reduces costs associated with diagnostics， configuration， and deployment on production servers 

多项选择题ChoosetwocorrectroledefinitionsforGridControlincontextofWebLogicserver（）

A. Grid Control allows administrative changes to be made to WebLogic domain
B. Grid Control enables multi-domain monitoring and management of WebLogic Server 
C. Grid Control provides service/system dashbord， and topology views for WebLogic Domains 
D. Grid Control allows creating and configuring WebLogic Domains

多项选择题WhattwostatementsaretrueaboutOracleEnterpriseManager’sJavaDiagnostictool，whichmakesthetoolsuitableforproductionserverdiagnostics？（）

A. virtually zero overhead for application running in the JVM 
B. no stalling of running JVM when taking a heap dump for memory analysis 
C. no need of modification， changes， or instrumentation of the application since is uses Network Protocol Analysis （NPA technology）
D. provides Byte Code Instrumentation for Java

单项选择题Whatisthesolutionforthe maximumsocketbuffersize warningsinOracleCoherenceversion3.1to3.3？（）

A. configure the OS allow for larger buffers
B. upgrade the Coherence version
C. configure the OS allow for small buffers
D. configure the OS allow for small buffers and upgrade the Coherence version