多项选择题

Which two statements are true about Oracle Real Applications Insight ？（）

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

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Choose two correct role definitions for Grid Control in context of WebLogic server（）

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

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What two statements are true about Oracle Enterprise Manager’s Java Diagnostic tool， which makes the tool suitable for production server diagnostics ？（）

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

What is the solution for the "maximum socket buffer size" warnings in Oracle Coherence version 3.1 to 3.3 ？（）

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