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A system administrator is asked by a development team to monitor the performance of a newly deployed EJB application. The administrator noticed that the heap size of the application server is growing.
What should the administrator do to fix the problem using ORB settings?
Answer : B
The Object Request Broker (ORB) pass by reference option determines if pass by reference or pass by value semantics should be used when handling parameter objects involved in an EJB request. This option can be found in the administrative console by navigating toServers => Application Servers =>server_name=> Object Request Broker (ORB). By default, this option is disabled and a copy of each parameter object is made and passed to the invoked EJB method. This is considerably more expensive than passing a simple reference to the existing parameter object.
A system administrator has to design a new production environment to host a web application. The workload of this web application is expected to increase during special marketing campaigns.
Which one of the following topologies should the administrator configure to address the requirements for this new environment?
Answer : C
A dynamic cluster is a server cluster that uses weights and workload management to balance the workloads of its cluster members dynamically, based on performance information that is collected from the cluster members. Dynamic clusters enable application server virtualization.
A dynamic cluster is an application deployment target that can expand and contract depending on the workload in your environment. Dynamic clusters work with autonomic managers, including the application placement controller and the dynamic workload manager to maximize the use of your computing resources. Dynamic clusters are required for many of the Intelligent Management autonomic functions, including high availability and service policies.
A system administrator has installed WebSphere Application Server Network Deployment V8.5.5 using the silent installation process and needs the verify that the installation completed successfully.
What does the administrator need to do to verify a successful installation?
Answer : A
You can verify successful installation of the product using the capabilities of IBM Installation Manager.
To verify installation of the product, you can use Installation Manager to find the product in the list of installed packages.
Perform one of the following actions:
* Launch the Installation Manager GUI, and verify the installation by going to File -> View Installed Packages.
Or
* Change the directory to the eclipse/tools subdirectory of the Installation Manager binaries location and run this command:
[AIX][HP-UX][Linux][Solaris]: ./imcl listInstalledPackages
[Windows] imcl.exe listInstalledPackages
This will display a list indicating which packages this Installation Manager has installed. For example:
com.ibm.websphere.ND.v85_8.5.0.20110203_0234
A WebSphere Application Server cell was configured with a deployment manager node and a custom node. An operator manually changed some configuration files in the custom node, and the node became out of synch with the master repository.
The system administrator used the Synchronize button in the system administration session of the Integrated Solutions Console (ISC) to try to resynchronize the node, but the node remained out of sync.
What should the administrator do to fix it?
Answer : A
Select 'Full Resynchronize' in the console.
References: https://www-01.ibm.com/support/docview.wss?uid=swg21233075
The computer where a federated node was running had a failure and cannot be recovered. A system administrator wants to recreate the node with the same configurations in another computer.
Which steps should the administrator execute in order to recover the damaged node?
Answer : C
You can use the -asExistingNode option of the addNode command to recover and move nodes of a deployment manager. Using the -asExistingNode option, federate a new custom node to a deployment manager as an existing node. During federation, the product uses information in the deployment manager master configuration to transform the custom node into the existing node.
