Prepare for the IBM WebSphere Application Server Network Deployment V9.0 Core Administration exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.
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To ensure that all web traffic is secure from the client to the application server, which two layers have to be configured for SSL? (Choose two.)
Which is true statement regarding High Performance Extensible Logging (HPEL)?
What data source property can an administrator configure to minimize the chances of encountering StaleConnectionExceptions?
The configuration options below help minimize the chances of encountering StaleConnectionExceptions by helping to ensure that your WebSphere Application Server maintains control of database connections, specifically, the only one closing them, rather than other components in your network:
The datasource MIN connections should be set to 0. By setting a MIN > 0, you are telling the application server that this number of connections will be valid for the life of the application server JVM. Unless you can guarantee the MIN number of connections will never be timed out or dropped, setting a MIN will cause a StaleConnectionException when the connection becomes invalid.
What determines which On Demand Routers (ODRs) a Web server forwards requests to?
In a topology with a web server which forwards requests to an on demand router (ODR), the ODR can be set to dynamically generate and update the web server plug-in configuration file plugin-cfg.xml. By configuring an ODR to dynamically update plugin-cfg.xml, you avoid manually updating the file during administrative actions, which can affect the content.
An administrator notices that the Message Driven Beans (MDBs) are slow to complete, and decides to increase the 'Maximum concurrent MDB invocations per endpoint'.
Which thread pool should be tuned to ensure it can run the maximum number of MDBs without waiting?
The thread pool WMQJCAResourceAdapter is referenced by the WebSphere MQ (WMQ) resource adapter inbound delivery to MDB's. When WebSphere MQ resource adapter is used in conjunction with the activation specs, the resource adapter's Work Manager uses the values defined for the WMQJCAResourceAdapter for utilizing the total number of threads defined.
Ideally the default values provides for the WMQJCAResourceAdapter will be sufficient for the resource adapter. But in case there is an heavy load on the system processing huge number of messages, you can increase the maximum number of threads the thread pool can hold.
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