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Q21. A web application was deployed on a WebSphere Application Server cluster. While users are using the application, one of the cluster servers fails and the users lose their working data.

What can the system administrator configure to ensure users can continue to work if one of the cluster servers fails?

A. An increased session timeout.

B. A cluster of external HTTP servers.

C. A load balancer to spread work between existing servers.

D. A WebSphere extreme Scale HTTP session management.

Answer: D

Explanation: Reference: http://websphere.sys-con.com/node/1299059


Q22. A system administrator has to design a new production environment to host a web application. The workload of this web application is expected to increase during special marketing campaigns.

Which one of the following topologies should the administrator configure to address the requirements for this new environment?

A. A Liberty collective environment with autonomic managers and on demand router (ODR).

B. A flexible management environment supported by one admin agent running in each node of the cell.

C. A dynamic cluster with autonomic managers, application placement controller and intelligent routers.

D. A heterogeneous cell with enough servers to support the peak load spread across multiple nodes on the same machine.

Answer: C


Q23. A newly deployed application has authorization errors when invoking EJB methods from a servlet. An additional review indicates that users are authenticated, but do not have the correct authorization.

How can a system administrator fix the issue ensuring only authorized access?

A. Using the Integrated Solutions Console (ISC), map all security roles to the special subject Everyone.

B. Using the Integrated Solutions Console (ISC), map the security roles that are still not mapped to groups in the current user registry.

C. Edit the application using an assembly tool to add a security constraint for the servlet and reinstall the application.

D. Edit the application using an assembly tool to remove the security constraint defined for the servlet and reinstall the application.

Answer: B


Q24. A system administrator in a bank was asked by business users to determine the most accessed JSP page in a web application at normal work load for marketing purpose.

Which tool should the administrator use to find the most used JSP page?

A. Performance and Diagnostic Advisor

B. IBM Support Assistant Data Collector

C. High Performance Extensible Logging Log Viewer

D. Tivoli Performance Viewer (TPV) summary reports

Answer: C


Q25. 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).

Answer: D


Q26. An application deployed to a multi-node cluster is reported to have slowness and hung threads. A system administrator is asked to review the logs on each node and identify if the hung threads are a false alarm.

How can the administrator determine that the hung threads are a false alarm? Analyze the:

A. ffdc logs.

B. SystemErr.log.

C. SystemOut.log.

D. Native_stderr.log.

Answer: C

Explanation: http://www- 01.ibm.com/support/knowledgecenter/ssw_i5_54/rzatz/trbhangdet.htm (See the False Alarm).


Q27. A system administrator has created a cluster containing two servers in a same node. The administrator did not select the option Generate unique HTTP ports during the creation of the cluster members. After the cluster creation, the administrator changed the HTTP port of the second cluster member to 9081.

Testing the servers using the snoop servlet directly to the server's HTTP port, the administrator got the following error message for the second server;

SRVE0255E: A WebGroup/Virtual Host to handle server2:9081 has not been defined How can the administrator fix this problem?

A. Regenerate and propagate the HTTP plug-in.

B. Add the port 9081 to the default_host alias.

C. Create a new virtual host alias at the cell level for the port 9081.

D. Edit the server.xml for the second server and add the port 9081

Answer: C

Explanation: Reference: http://www-01.ibm.com/support/docview.wss?uid=swg21438842


Q28. Which one of the following options describes the runtime flow starting from the client browser in a clustered WebSphere Application Server Network Deployment topology?

A. HTTP server -> job manager -> admin agent -> HTTP server plug-in

B. Load balancer -> HTTP server -> HTTP server plug-in -> application server

C. Application server -> node agent -> deployment manager -> load balancer

D. Deployment manager -> node agent -> HTTP server plug-in -> HTTP server

Answer: A


Q29. An organization updated their LDAP directories and modified user roles. The roles that were configured to have access to a highly secured enterprise application were deleted and new roles with new names were created. The application then had security related exceptions.

How can a system administrator resolve the exceptions and restore security for the application?

A. Modify the mapping of security roles of the application to the new LDAP roles.

B. Modify the application and remove all security constraints and redeploy the application.

C. Modify the application to have a run as role for each new LDAP role and redeploy the application.

D. Create an administrative authorization group with administrator privileges scoped for the application with an administrative group role for the new LDAP roles.

Answer: D

Explanation: Reference: http://www.novell.com/documentation/idmrbpm36/install/data/bb1zmw0.html (See the Role of Administrator).


Q30. 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 proactiveldleStop 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".

Answer: D

Explanation: Reference: http://pic.dhe.ibm.com/infocenter/wxdinfo/v6r1/index.jsp?topic=%2Fcom.ibm.websphere.ops.doc%2Finfo%2Freference%2Frodccustprop.html