A customer has a critical, performance-sensitive web application that connects to a multinode  Oracle RAC database. Which feature of WebLogic can provide significant performance benefit?（）

多项选择题Acommonapproachtosolveapplicationperformanceissuesistoaddmorehardware.Whichtworeasonsdescribewhythisalonedoesnotalwayssolveperformanceproblems?（）

A.There may be a bottleneck in the application that additional hardware would not solve.
B.Adding more hardware is costly and time consuming.
C.Adding hardware at the application layer may place additional load on an already overloaded database, network appliance, or storage system.
D.Adding more hardware may introduce new configuration requirements that need to be tested.

单项选择题Acustomerclaimsthatwhileredeployingawebapplicationintheproductionsystemalltheircustomersarehavingtologinagain.Whatdoyourecommend?（）

A.Sessions can't be preserved when redeploying applications. The customer needs to consider redeployment during late nights when the traffic is low.  
B.Change the flag responsible for the development mode of their environment. In the production mode, all sessions are preserved while redeploying application.  
C.Change Hotspot to JRockit. Sessions can't be preserved on HotSpot when redeploying application. 
D.Use flag -version when redeploying the application. This will switch on the Side By Side deployment feature and preserve existing sessions.
E.Open a service request with Oracle Support. This is unexpected behavior. Sessions are  preserved without any extra settings.

单项选择题A highly available WebLogic cluster in UNIX is configured for automatic server migration. Node Managed is configured on both machines to start managed servers. How should you simulate a managed server failure to test whether automatic server migration is working?（）

A.Shut down the managed server from the WebLogic console.
B.Shut down the managed server using the WLST command through Node Manager.
C.Run "kill -9" once to kill the managed server process.
D.Run "kill -9" to kill the managed server process, and run "kill -9" one more time if the managed  server is restarting.

多项选择题WhenyourWebLogicServersolutionneedstobescaledoutwithadditionalcapacityandyouDon’twanttoaddadditionalhardware,whichthreetechniquesshouldyouus?（）

A.Assign more than one managed server to a physical hardware that allows better CPU  utilization
B.Assign more than one application to one managed server to better utilize threads within a single JVM process
C.Assign the same application to more than one managed server to load balance requests  between servers
D.Assign the same heap size to the managed server across the cluster for easier control of  memory footprint  
E.Create a virtualized environment with hypervisor for an easier solution

单项选择题You deploy more than one application to the same WebLogic container. The security is set on JavaEE level and all deployed JavaEE applications use the same security roles.    What is your recommendation for an architecture with those requirement?（）

A.Combine all applications into a single one.
B.Define global roles on the WebLogic Domain level.
C.Use Ms Active Directory to keep the roles there. 
D.Use Oracle Identity and Access Management solution to simplify the management.
E.Keep role mapping in the external WebLogic Role Mapped developed for that solution.