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IBM WebSphere Application Server Network Deployment V9.0 Core Administration

Question No: 1

Which tool can be used to collect data to be used for monitoring and tuning the environment?

  1. Thread and Monitor Dump Analyzer

  2. Performance Monitoring Infrastructure

  3. IBM Tivoli Performance Viewer Advisor

  4. Garbage Collection and Memory Visualizer

Answer: B Explanation:

WebSphere Application Server provides Performance Monitoring Infrastructure (PMI) data to help monitor the overall healthof the WebSphere Application Server environment. PMI provides average statistics on WebSphere Application Server resources, application resources, and system metrics. Many statistics are available in WebSphere Application Server, and you might want to understand the ones that most directly measure your site#39;s resources to detect problems.

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

Question No: 2

When creating a health policy, which condition should be selected to track requests that have a significantly decreased response time?

  1. Workload

  2. Age-based

  3. Storm drain

  4. Excessive response time

Answer: C Explanation:

The Storm drain condition tracks requests that have a significantly decreased response


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

Question No: 3

How can an administrator configure Web services security?

  1. Customize WS-Security policy set and bindings and attach to Web services.

  2. Configure global security with LDAP authentication and map the configuration to Web services.

  3. Request application developer to use Web Services Security API to achieve Web services security.

  4. Enable the Web ServicesMetadata Exchange (WS-MetadataExchange) protocol to enable message-level security.

Answer: C Explanation:

The Web Services Security specification provides a flexible framework for building secure web services to implement message content integrity and confidentiality. The Web Services Security service programming model supports this flexible framework by providing extension points to integrate new token formats, and methods to obtains keys needed for message protection. The application server programming model provides Web Services Security programming application programming interfaces (WSS API) for securing SOAP messages.

Note: WS-Security is a message-level standard that is based on securing SOAP messages through XML digital signature, confidentiality through XML encryption, and credential propagation through security tokens. The Web services security specification defines the facilities for protecting the integrity and confidentiality of a message and provides mechanisms for associating security-related claims withthe message.

References:https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.we bsphere.nd.doc/ae/container_wssec_top.html

Question No: 4

Which of the following is true about certificate expiration monitoring?

  1. Must be runmanually.

  2. Must be run on the deployment manager.

  3. Deletes the certificates after they are expired, but does not replace them.

  4. Can replace expired certificates or certificates in the expiration threshold with a new certificate

Answer: D Explanation:

Certificatemonitor configuration settings can be configured on the administrative console by selecting Security gt; SSL certificate and key management gt; Manage certificate expiration. . On the Manage certificate expiration panel, you can perform the following functions.


References:https://www.ibm.com/support/knowledgecenter/en/SSAW57_7.0.0/com.ibm.we bsphere.nd.doc/info/ae/ae/csec_sslcertmonitoring.html

Question No: 5

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

  1. Minimum connections = 0

  2. Reap Timeout lt; Unused Timeout

  3. Purge Policy = FailingConnectionOnly

  4. Unused Timeout gt; Half firewall timeout

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 gt; 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/webs phere_application_server_staleconnectionexceptions?lang=en

Question No: 6

To write a Jython script to stop a running application server, an administrator should use which administrative object?

  1. AdminApp

  2. AdminTask

  3. AdminConfig

  4. AdminControl

Answer: D Explanation:

You can use the wsadmin tool to stop applications.

There are two ways to complete this task.Firstly you canuse the AdminControl object to stop the application. Alternatively, you can use the scripts in the AdminApplication script library to start, stop, and administer your application configurations.

References:https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.0.0/com.ibm.we bsphere.nd.doc/info/ae/ae/txml_stopapplication.html

Question No: 7

Which type of fix would typically be downloaded to address a specific problem?

  1. Interim fix

  2. Cumulative fix

  3. Product fix pack

  4. Cumulative interim fix

Answer: A Explanation:

A WebSphere Commerce interim fix (iFix) is a software patch that contains fixes for one or more APARs. A WebSphere Commerce cumulative iFix is a comprehensive collection of interim fixes for a specific release. Both types of fixes are installed with theWebSphere Commerce Update Installer (UPDI).

Note: An Authorized Program Analysis Report, or APAR, is a formal report from IBM development to customers that have notified IBM of a problem or suspected defect. If IBM development is able to confirm the existence of the issue they will create an APAR with any known work around and perhaps an indication of which future release, if any, of the IBM program they intend to target for a formal fix to the defect and whether or not a Program Temporary Fix (PTF) is planned. The APAR will then be published so that it is visible to supported customers.

References:https://www.ibm.com/support/knowledgecenter/en/SSZLC2_7.0.0/com.ibm.co mmerce.install.doc/concepts/cig_install_ifixes.htm

Question No: 8

How can an administrator reduce overhead when utilizing monitored directories?

  1. Increase the polling interval so that the process runs less often.

  2. Decrease the amount of time that the monitored directory is accessible by users.

  3. Decrease the size of the monitored directory so that larger files will not be able to be stored in it.

  4. Configure the monitored directory settingsto not automatically synchronize the application once it is installed.

Answer: A Explanation:

To change the standard polling interval setting, specify a number of seconds in the Pollinginterval field.

Figure: Configuring the monitored directory

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References: WebSphere Application Server V8.5, July 2013, page 852

Question No: 9

What is one of the benefits of using a federated repository over a user registry?

  1. Does notsupport identity profiles

  2. Supports only one registry in a realm

  3. Supports multiple registries within a realm

  4. Provides account and password policy support

Answer: C Explanation:

Federated repositories enable you to use multiple repositories with WebSphereŚļź Application Server. These repositories, which can be file-based repositories, LDAP repositories, or a sub-tree of an LDAP repository, are defined and theoretically combined under a single realm. All of the user repositories that are configured under the federated repository functionality are invisible to WebSphere Application Server.

References:https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.we bsphere.nd.doc/ae/cwim_fedrepos.html

Question No: 10

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

  1. Creating a new node for a web server adds a managed node.

  2. Creating a new node for a web server adds an unmanaged node.

  3. Adding a web server to an existing node created a managed node.

  4. Deleting a web server from an unmanaged node creates a managed node.

  5. Deleting a web server from a managed node creates an unmanaged node.

Answer: A,E Explanation:

A managed node must exist to define a Web server definition, which is always on a managed node.

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References:https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.we bsphere.nd.doc/ae/tins_webplugins_single.html

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