IBM IBM Certifications C9510-401 Questions & Answers

• Question 51:

  A system administrator has configured a network deployment cell containing multiple nodes and global security enabled with an LDAP repository. To increase capacity, the administrator needs to add additional nodes to the cell. After adding the nodes by using both scripts and the Integrated Solutions Console (ISC), the administrator examines the System.out log for the deployment manager and notices the following message:

  

  How can the administrator resolve this problem?

  A. Disable Java 2 security.

  B. Restart the deployment manager.

  C. Increase the RSA token timeout value.

  D. Change the number of active LTPA keys.

  Correct Answer: B

  When nodes are added while LDAP security is enabled, the following exception is generated in the deployment manager System.out log under certain circumstances. If this happens, restart the deployment manager to resolve the problem. 0000004d ORBRas E com.ibm.ws.security.orbssl.WSSSLClientSocketFactoryImpl createSSLSocket ProcessDiscovery : 0 JSSL0080E: javax.net.ssl.SSLHandshakeException The client and server could not negotiate the desired level of security. Reason?com.ibm.jsse2.util.h: No trusted certificate found

  References: https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.0.0/com.ibm.websphere.nd.doc/info/ae/ae/ tagt_svr_conf_nodes.html

• Question 52:

  A system administrator needs to configure a JDBC provider and a data source for an application in a clustered environment. The administrator also needs to copy the JDBC drivers from the database server to the application server machines.

  How can the administrator meet these requirements?

  A. Create a JDBC provider and the data source in the cluster scope.Copy the driver to all nodes.Set the environment variable at the node level to the driver's path.

  B. Create a JDBC provider in the server scope and the data source in the node scope.Copy the driver to all application servers.Set the environment variable at the node level to the driver's path.

  C. Create a JDBC provider in the node scope and the data source in the cell scope.Copy the driver to the deployment manager.Set the environment variable at the server level to point to the deployment manager path.

  D. Create a JDBC provider in the application scope and the data source in the server scope.Copy the driver to all application server directories.Set the environment variable in each JVM to the driver's path.

  Correct Answer: A

• Question 53:

  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?

  A. Enable application lazy start with elasticity mode.

  B. Set the proactiveIdleStop custom property to true.

  C. Set the Number of instances to a value greater than zero.

  D. Disable 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 54:

  A system administrator wants to learn some of the Python scripting commands for the administration of the environment.

  Which product feature should the administrator use?

  A. The wsadmin.properties file to load a profile.

  B. The AdminTask object to generate wsadmin scripts.

  C. The guided activities panel from the Integrated Solutions Console (ISC).

  D. The "Log command assistance commands" option in the Integrated Solutions Console (ISC).

  Correct Answer: D

• Question 55:

  A system administrator ran the backupConfig command to backup the configuration using the -nostop option. The administrator changed the properties for the service integration environment by modifying the sib.properties file. During testing the administrator noticed Service Integration Bus related errors and wanted to restore the service integration environment. The administrator used the restoreConfig command, but the tuning properties for the service integration environment were not restore.

  How can the administrator prevent this issue?

  A. Use full repository checkpoint for both the backup and the restore.

  B. Use the restoreConfig command with –nostop for the restore.

  C. Use the manageprofiles command for both the backup and the restore.

  D. Use the backupConfig command without –nostop for the backup

  E. Use the restoreConfig command without –nostop for the restore.

  Correct Answer: A

  With the repository checkpoint and restore function, you can back up copies of files from the master configuration repository. You can use the backups to restore the configuration to a previous state if future configuration changes cause operational problems. By using this function, you can reduce recovery time for problems that are caused by configuration changes. Studies of unplanned outages have shown that as much as 36 percent of unplanned outages are due to operator errors. A common source of operator error is a bad configuration change. The ability to quickly undo a bad configuration change is critical to minimizing the outage window.

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

• Question 56:

  A system administrator has been asked to uninstall an application from a cluster running in a WebSphere Application Server Network Deployment cell. This application was installed from the Integrated Solutions Console (ISC). The monitored directory for the cluster is .

  What step(s) can the administrator perform to uninstall the application?

  A. Delete the application file from .

  B. Stop the running cluster.Delete the application file from .

  C. Stop the running cluster.Copy the application file to .Delete the application file from .

  D. Create a properties file to describe the deletion of the application file.Copy the properties file to .

  Correct Answer: D

  You can use application properties files to install enterprise application files on a server or cluster, update

  deployed applications or modules, or uninstall deployed applications or modules. Drag or copy a properties

  file to a monitored directory and the product performs the deployment action described in the properties

  file. The enterprise application files that you can install, update, or uninstall using properties files include

  enterprise archive (EAR), web archive (WAR), Java archive (JAR), and Session Initiation Protocol (SIP)

  archive (SAR) files.

  References:

  https://www.ibm.com/support/knowledgecenter/SSAW57_8.5.5/com.ibm.websphere.nd.mul tiplatform.doc/

  ae/trun_app_install_dragdrop_prop.html

• Question 57:

  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?

  A. Use J2EE managed object MBeans.

  B. Enable the pass by reference option.

  C. Disable the application scoped resources in the application deployment descriptor.

  D. Ensure 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 to Servers => 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.htm l#sec3e

• Question 58:

  A system administrator is tasked with monitoring the overall health of the WebSphere environment to be able to tune the environment properly. Specifically, the administrator was asked to:

  Which PMI modules can the administrator examine to obtain this data?

  A. Number of requests, Java virtual memory, Average response time

  B. Number of requests, Average response time, Web server thread pools

  C. Average response time, Java virtual memory, Number of Live HTTP Sessions

  D. Average response time, Web server thread pools, Number of Live HTTP Sessions

  Correct Answer: C

  Monitoring overall system health. To monitor overall system health, monitor the following statistics at a minimum:

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

• Question 59:

  Within a WebSphere Application Server Network Deployment cell, a system administrator needs to write a script to determine if a particular server is stopped. It is important that the wsadmin script explicitly return a status of stopped as opposed to just failing.

  What wsadmin object should the administrator use to write this script?

  A. AdminApp

  B. AdminTask

  C. AdminConfig

  D. AdminControl

  Correct Answer: D

  Use the AdminControl object to invoke operational commands that manage objects for the application server. Many of the AdminControl commands have multiple signatures so that they can either invoke in a raw mode using parameters that are specified by Java Management Extensions (JMX), or by using strings for parameters. In addition to operational commands, the AdminControl object supports some utility commands for tracing, reconnecting with a server, and converting data types.

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

• Question 60:

  A system administrator needs to install WebSphere Application Server using response files, so that a silent install can be done. The administrator has ensured that all required prerequisites have already been installed and, has downloaded and expanded the required WebSphere Application Server installation files.

  What can the administrator run to install the product?

  A. install –options responsefile.xml -silent

  B. install –acceptLicense –options responsefile.xml -silent

  C. imcl –acceptLicense input responsefile.xml –log logfile.txt

  D. IBMIM –acceptLicense –input responsefile.xml –log logfile.txt

  Correct Answer: C

  Example of the use of the response files to install the product. imcl.exe -acceptLicense input C:\temp\keyring_response_file.xml -log C:\temp\keyring_log.xml