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IBM WebSphere Application Server Network Deployment V9.0 Core Administration

Question No: 11

Which statement describes the functionality of web containers?

  1. Web containers forward EJB requests to the EJB container.

  2. Web containers process JSPs, servlets, and various server-side objects.

  3. Servlets requests are forwarded from an EJB container to a web container.

  4. Each application server cancontain multiple web containers, depending upon the number of JSPs and servlets.

Answer: B Explanation:

The runtime environment for Web components is called the Web container.. It processes servlets, JSP files, and other types of server-side components.


Question No: 12

Which of the following is a prerequisite for configuring single sign-on for authentication using LTPA cookies?

  1. All server must use the same IBM HTTP Server.

  2. All servers must be configured as part of the same DNS domain.

  3. All servers must use an IBM Domino Directory thatis configured for LDAP access.

  4. All servers must be managed by the same IBM WebSphere Application Server Deployment Manager.

Answer: B Explanation:

To take advantage of support for SSO between WebSphere Application Servers or between WebSphere Application Server and a Domino server, applications must meet the following prerequisites and conditions:

*Verify that all servers are configured as part of the same DNS domain.

  • Etc.

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

    Question No: 13

    What is a prerequisite for creating a dynamic cluster?

    1. Create and verify the service policies.

    2. Verify that the administrator has Operator privileges.

    3. Verify the application placement controller is enabled.

    4. Make sure there are less than 30 core group members in the cell.

    Answer: C Explanation:

    Verify that the application placement controller is enabled. The application placement controller is enabled by default. The application placement controller enables the autonomic capabilities of dynamic clusters.

    Question No: 14

    What determines which On Demand Routers (ODRs) a Web server forwards requests to?

    1. The default order in theODR_Module_Routing_Poilicy.xml.

    2. The configuration scope determines which ODRs are included inhttpd.conf.

    3. The configuration scope determines which ODRs are included inplugin-cfg.xml.

    4. The configuration scope determines which ODRs are included inHTTPplugin-cfg.xml.

    Answer: C Explanation:

    In a topology with a web server which forwards requests to an on demand router (ODR), the ODR can be set to dynamically generate and update the web server plug-in configuration file plugin-cfg.xml. By configuring an ODR to dynamically update plugin- cfg.xml, you avoid manually updating the file during administrative actions, which can affect the content.

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

    Question No: 15

    Which of the following is required for Secure Sockets Layer (SSL) enablement within an HTTP server?

    1. AJDK

    2. A valid, issued certificate

    3. IPv6 (Internet Protocol Version 6)

    4. Updating thehttps.conffile and not thehttpd.conffile

    Answer: B Explanation:

    The iKeyman GUI, which is included within the IBM HTTP Server distribution, can be used to create a key database file (for example: key.kdb) needed to store personal server certificates required by the client browser during an SSL handshake.

    Question No: 16

    A system administrator has just enabled HPEL in the environment. How can the administrator examine the logged data?

    1. Use theViewLogcommand.

    2. Use the administrative console.

    3. Use a text editor to open thesystemOut.logfile.

    4. Use the IBM Support Assistant to analyze the text log.

    Answer: B Explanation:

    High Performance Extensible Logging (HPEL) is a log and trace facility that is provided as a part of WebSphereŚļź Application Server.HPEL provides a log data repository, a trace data repository, and a text log file.

    The HPEL LogViewer is an easy-to-use, command-line tool provided for HPEL users to work with the log data and trace data repositories.

    Use the following command to view the full contents of your log and trace repositories: [Windows] (Windows) logViewer.bat

    [AIX HP-UX Solaris] (Unix- full profile) logViewer.sh [AIX HP-UX Solaris] (Unix- Liberty profile) logViewer

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

    Question No: 17

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

    1. Thread ID

    2. Timestamp

    3. Message ID

    4. Exception from top of stack trace

    Answer: B Explanation:

    Reading a Trace File

    References:ftp://ftp.software.ibm.com/software/iea/content/com.ibm.iea.was_v6/waspdguid e/6.0/GeneralPD/SW5706G04_Techniques.pdf, page 26

    Question No: 18

    What is the main difference between interim fixes and product fix packs as they relate to IBM WebSphere Application Server?

    1. Interim fixes typically contain new features or functionality ahead of future product fix packs.

    2. Product fix packs are a combination of interim fixes and internal fixes to make patching easier.

    3. Product fix packs are generally reserved for new features or functionality whereas interim fixes are provided only to fix known issues.

    4. Product fix packs bring WebSphere ApplicationServer to a new product level whereas interim fixes provide corrective service for specific known problems.

    Answer: D Explanation:

    Product fix packs contain bundled service to bring WebSphere Application Server up to a new product level. Interim fixes provide corrective service for specific known problems.

    References:https://www.ibm.com/support/knowledgecenter/en/SS7K4U_8.5.5/com.ibm.we bsphere.installation.zseries.doc/ae/tins_install_fixes_z.html

    Question No: 19

    Which is true when an administrator properly updates a single file within an application?

    1. The administrator can use apartial application update.

    2. The administrator must redeploy the full application file.

    3. The administrator can manually update the file on the file system.

    4. The administrator must uninstall the application, and then, reinstall with the updated application file.

    Answer: C

    Question No: 20

    An administrator notices that the Message Driven Beans (MDBs) are slow to complete, and decides to increase the ‘Maximum concurrent MDB invocations per endpoint’.

    Which thread pool should be tuned to ensure it can run the maximum number of MDBs without waiting?

    1. Default

    2. WebContainer

    3. SIBJMSRAThreadPool

    4. WMQJCAResourceAdapter

    Answer: D Explanation:

    The thread pool WMQJCAResourceAdapter is referenced by the WebSphere MQ (WMQ) resource adapter inbound delivery to MDB#39;s. When WebSphere MQ resource adapter is used in conjunction with the activation specs, the resource adapter#39;s Work Manager uses the values defined for the WMQJCAResourceAdapter for utilizing the total number of threads defined.

    Ideally the default values provides for the WMQJCAResourceAdapter will be sufficient for the resource adapter. But in case there is an heavy load on the system processing huge number of messages, you can increase the maximum number of threads the thread pool can hold.


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