IBM C9510-401 Exam Practice Test Instant Access

Question 1

A system administrator needs to trigger a javacore only when a java,net.SocketTimeoutException is encountered in real time.

What does the administrator have to configure to trigger the javacore dump?

AConfigure the JAVA_DUMP_OPTS environment variable to capture javacore for ANYSIGNAL and all exceptions.

BConfigure an --Xdump:java Generic JVM argument on WebSphere Application Server with the filter for java.net.SocketTimeoutException.

CCode wsadmin script to capture javacore and then execute it after the java.net.SocketTimeoutException has been encountered.

DUse the log filter in HPEL to monitor for java.net.SocketTimeoutException and then gather a javacore dump from the Integrated Solutions Console (ISC).

Answer : B

Dump agents are set up during JVM initialization. They enable you to use events occurring within the JVM, such as Garbage Collection, thread start, or JVM termination, to initiate one of four types of dump or to launch an external tool. Default dump agents are set up at JVM initialization They are sufficient for most cases, but the use of the -Xdump option on the command line allows more detailed configuration of dump agents. The total set of options and sub-options available under -Xdump is very flexible and there are many examples presented in this chapter to show this flexibility.

Example: To generate system cores:

-Xdump:system:events=user

References: http://www-01.ibm.com/support/docview.wss?uid=swg21242497

Question 2

A system administrator has created a Jython script that will run in WebSphere Network cell where administrative security is enabled. This script is named doUpdate.py and will be run by using the following:

wsadmin --connType RMI --f doUpdate.py

How can the administrator suppress a user/password prompt from appearing when this script is run?

Set the user and password in the:

Asas.client.props file.

Bssl.client.props file.

Csoap.client.props file.

Dwsadmin.properties file.

Answer : A

The user Id and password needed for wsadmin to connect to a secured server can be supplied as command line options and in properties files. If used together, command line options take precedence over what is in the properties files. The properties files are located at Profile_root/properties.

If you use a Remote Method Invocation (RMI) connector or a JSR160RMI connector, set the following properties in the sas.client.props file with the appropriate values:

com.ibm.CORBA.loginUserid=

com.ibm.CORBA.loginPassword=

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

Question 3

A system administrator has created a Python script called globalScript. py.

What should the administrator do to ensure globalScript. py is loaded when the wsadmin shell is used?

ACompile globalScript.py to a Java class in the bin directory.

BInvoke wsadmin with the argument-profileName globalScript.py.

CModify the configureCustomProperty script to import globalScript. py.

DSet the script profiles in the wsadmin.properties file to load globalScript .py.

Answer : D

Question 4

A system administrator runs a Jython script that creates and configures several servers and realize that the script fails before completing. Although many tasks succeeded, they are rolled back when the script fails.

Before running the script again, what can the administrator add to the script after each task so the completed tasks are committed even if other tasks fail?

AAdminApp.update()

BAdminConfig.save()

CAdminControl.invoke(server, 'sync')

DAdminTask.backupJobManager('server')

Answer : B

AdminConfig.save()to save changes after script execution.

Question 5

A system administrator has created a Jython script called globalScript.py.

What should the administrator do to ensure globalScript.py is loaded when the wsadmin shell is used?

ACompile globalScript.py to a Java class in the bin directory.

BInvoke wsadmin with the argument --profileName globalScript.py.

CModify the configureCustomProperty script to import globalScript.py.

DSet the script profiles in the wsadmin.properties file to load globalScript.py.

Answer : D

wsadmin.properties has this entry com.ibm.ws.scripting.profiles where we can add the scripting files to be loaded.

References: https://www-01.ibm.com/support/knowledgecenter/SSAW57_8.5.5/com.ibm.websphere.nd.doc/ae/rxml_propscript.html

Question 6

While monitoring a cluster in the cell, the administrator notices that one server in the cluster periodically loses connections to the database. When this happens, requests to the server have a significantly decreased response time and various error conditions are listed in the log files for the server. Since the error codes are returned quickly, the server starts returning responses faster than the average service times for the application. Due to this, the weight for the server is increased and a large percentage of incoming requests are being routed to the erroneous server and the server is getting overloaded with requests.

How can the administrator detect these conditions in the future and take action to prevent this problem?

AConfigure the storm drain health policy.

BConfigure the on demand router (ODR) transport chain to tune inbound connections.

CMonitor the JVM heap usage to determine a new server weight.

DEnable the PMI Extended statistic set and use the Connection Pool summary report.

Answer : A

Storm drain condition tracks requests that have a significantly decreased response time. This policy relies on change point detection on given time series data.

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

Question 7

A system administrator has created a Python script that will run in WebSphere Network cell where administrative security is enabled. This script is named doUpdate.py and will be run by using the following:

wsadmin -connType RMI -f doUpdate.py

How can the administrator suppress a user/password prompt from appearing when this script is run?

Set the user and password in the:

Asas.client.props file.

Bssl.client.props file.

Csoap.client.props file.

Dwsadmin.properties file.

Answer : D

IBM WebSphere Application Server Network Deployment V8.5.5 and Liberty Profile C9510-401 Exam Practice Test