C9510-418 Free Practice Test

What data source property can an administrator configure to minimize the chances of encountering StaleConnectionExceptions?

1. A. Minimum connections = 0
2. B. Reap Timeout < Unused>Purge Policy = FailingConnectionOnly
3. C. Unused Timeout > Half firewall timeout

Correct Answer: A
The configuration options below help minimize the chances of encounteringStaleConnectionExceptions 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 beset 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.
References:https://www.ibm.com/developerworks/community/blogs/aimsupport/entry/websphere_application_server_staleconnectionexceptions?lang=en

Which two statements describe a web server in a cell topology?

1. A. Creating a new node for a web server adds a managed node.
2. B. Creating a new node for a web server adds an unmanaged node.
3. C. Adding a web server to an existing node created a managed node.
4. D. Deleting a web server from an unmanaged node creates a managed node.
5. E. Deleting a web server from a managed node creates an unmanaged node.

Correct Answer: AE
A managed node must exist to define a Web server definition, which is always on a managed node.
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When setting up high availability settings for the web server, at what level should an
administrator configure the custom properties?

1. A. cell
2. B. node
3. C. server
4. D. nodeagent

Correct Answer: C
References:https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.multiplatform.doc/ae/xrun_jvm.html

Which of the following gives clues when comparing traces from different processes and correlating events of different servers in the same data center?

1. A. Thread ID
2. B. Timestamp
3. C. Message ID
4. D. Exception from top of stack trace

Correct Answer: B
Reading a Trace File
References:ftp://ftp.software.ibm.com/software/iea/content/com.ibm.iea.was_v6/waspdguide/6.0/GeneralPD/SW5706G04_Techniques.pdf, page 26

When installing IBM WebSphere Application Server on a network file system, IBM Installation Manager fails with an insufficient disk space error.
How could this be resolved?

1. A. Increase disk space and try again.
2. B. Delete temporary files and try again.
3. C. Reboot operating system and try again.
4. D. Disable disk space checking inthe config.ini and try again.

Correct Answer: D
On some network file systems, disk space might not be reported correctly at times; and you
might need to bypass disk-space checking and proceed with your installation.
To disable disk-space checking, specify the following system property in the config.ini file in IM_install_root/eclipse/configuration and restart Installation Manager.
References:https://www.ibm.com/support/knowledgecenter/SSEQTP_9.0.0/com.ibm.websphere.installation.base.doc/ae/tins_troubleshoot.html