Try Free IBM C9510-401 Updated Questions & Answers

Question 1

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?

AUse the Full Resynchronize button.

BInvoke ''sync'' operation on NodeSync MBean.

CRecreate the custom profile with the same name without deleting the node.

DManually copy all the deployment manager configuration files to the custom node.

Correct answer: A

Select 'Full Resynchronize' in the console.

References: https://www-01.ibm.com/support/docview.wss?uid=swg21233075

Question 2

The application placement controller has been configured with elasticity mode enabled. Intermittently, all instances of a dynamic cluster are removed. After further review, the system administrator noticed that it occurs during peak load on another dynamic cluster.

The administrator wants to keep at least one instance available. Which configuration is needed in the dynamic clusters?

AEnable application lazy start with elasticity mode.

BSet the proactiveIdleStop custom property to true.

CSet the Number of instances to a value greater than zero.

DDisable the option ''If other dynamic clusters need resources, stop all instances of this cluster during periods of inactivity''.

Correct answer: D

It is not recommended to enable elasticity mode when the following option is set in the administrative console for one or more dynamic clusters:

If other dynamic clusters need resources, stop all instances of this cluster during periods of inactivity.

If you have elasticity mode enabled and the option set, the application placement controller can remove all of the custom nodes in the cell.

References: https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.doc/ae/twve_cfgelastic.html

Question 3

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?

AUse J2EE managed object MBeans.

BEnable the pass by reference option.

CDisable the application scoped resources in the application deployment descriptor.

DEnsure that Process embedded configurations is not selected when exporting the EAR.

Correct 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.

References: https://www.ibm.com/developerworks/websphere/techjournal/0909_blythe/0909_blythe.html#sec3e

Question 4

After installing an enhanced EAR in a WebSphere Application Server environment, a system administrator with Configurator privileges is able to see a JDBC provider and a data source in the Integrated Solution Console (ISC) but is not able to delete these resources.

How can the administrator resolve this issue?

AUse the AdminTask object to delete the resources.

BStop all application server instances and then delete the resources.

CAsk another administrator with iscadmin privilege to delete the resource.

DEdit the EAR to remove the application scoped resources and reinstall the application.

Correct answer: A

The JDBCProviderManagement command group for the AdminTask object includes the following commands:

References: https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.doc/ae/rxml_atjdbcprovider.html

Question 5

The installation of WebSphere Application Server did not complete successfully, and a system administrator needs to troubleshoot the installation.

What can the administrator do to identify the cause of the installation failure?

ARun the installver command with the appropriate command line options.

BCheck the files under the Agent data location of IBM Installation Manager.

CCheck the files under the logs directory of IBM Installation Manager installation directory.

DCheck the log.txt under <WebSphere Application Server install directory><log directory>.

Correct answer: C

Installation Manager creates log files that you can use to troubleshoot any installation problems. Consider verifying the log files after any installation to ensure that everything in that process went successfully.

To examine the logs manually, locate the Installation Manager logs directory. The default location for this directory varies according to the operating system:

Windows: C:\ProgramData\IBM\Installation Manager\logs

UNIX: /var/ibm/InstallationManager/logs

References:

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