多项选择题What are the three steps you should take to tune a JDBC Connection pool in WebLogic from the  initial settings in a production environment?()

A.Ensure the maximum size is increased to an appropriate setting.
B.Set the minimum and maximum size of the connection pool to the same value.
C.Increase the statement cache size.
D.Add more heap to the JVM.
E.Add more nodes to the cluster.


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你可能感兴趣的试题

1.单项选择题

A customer needs to ensure that the number of threads servicing an application does not exceed the number of database connections available to the application.
What step must you take to address this situation?()

A.Configure a Max Threads Constraint and add your application to the list of applications for the  Constraint.
B.Configure a Work Manager with a Maximum Threads Constraint tied to the Connection Pool and  configuration your application to use the Work Manager.
C.Configure a Work Manager with a Minimum Threads Constraint tied to the Connection Pool and  configure your application to use the Work Manager.
D.Configure a global MaxThreads constraint and target it to the server or clusters where your  application is deployed.
E.Configure the startup parameter "-Dwls-maxThreads" to be the same as the number of  database connections configured.

2.单项选择题A customer has a critical, performance-sensitive web application that connects to a multimode  Oracle RAC database. Which feature of WebLogic can provide signification benefit?()

A.The Web Session Affinity feature of Active GridLink for RAC
B.WebLogic Clustering
C.The Transaction Affinity feature of Active GridLink for RAC
D.Coherence*Web Session Replication

4.单项选择题Which WebLogic optimization allows one non-XA resource to participate in a distributed transaction?()

A.enabling Pinned to Thread
B.enabling Logging Last Resource
C.increasing the Statement cache size
D.setting the statement cache type to LRU
E.setting the initial and maximum capacity to the same number

5.多项选择题A customer needs to implement a Highly Available solution for JMS that has a primary data center  and a backup. Which three steps would you perform when designing your solution?()

A.Store Transaction Logs in a database and use Database stores for JMS to make replication  between sites easier.
B.Use file based Transaction Logs and JMS stores and implement a separate replication solution  for files in addition to database in case database replication fails.
C.Implement Oracle RAC at each site to provide a highly available solution within each datacenter.
D.Configure Whole Server Migration to migrate WebLogic Managed Servers from the primary to the secondary site.
E.Configure Automatic Service Migration for JMS high availability within a datacenter.

6.单项选择题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?()

A.The Web Session Affinity feature of Active GridLink for RAC
B.WebLogic Clustering  
C.The Transaction Affinity feature of Active GridLink for RAC
D.Coherence*Web Session Replication

7.多项选择题A common approach to solve application performance issues is to add more hardware. Which two  reasons describe why this alone does not always solve performance problems?()

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.

8.单项选择题A customer claims that while redeploying a web application in the production system all their  customers are having to log in again. What do you recommend? ()

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.

9.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.

10.多项选择题When your WebLogic Server solution needs to be scaled out with additional capacity and you  Don’t want to add additional hardware, which three techniques should you us?()

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

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