多项选择题

You have a durable subscriber, and the subscriber is down or not reachable when the message is produced. Which two options regarding the expiry of these messages are true?（）

A.after the subscriber is unavailable for 10 minutes
B.when the subscriber is available
C.after the subscriber is unavailable for after an hour
D.are available until the specified time elapses
E.are expired instantly

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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.

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.

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