000-318 - IBM WebSphere Application Server Network Deployment V8.5 Core Administration
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A lightweight development environment for running a new web application that does not require the full Java EE stack has to be built. A system administrator decides to use a Liberty Profile and needs a Liberty Profile runtime to create the server and deploy the new application on it. Which tools could the system administrator use to create the runtime? (choose 2)
IBM Installation Manager
WebSphere Application Server Developer Tool (WDT)
A system administrator is using wsadmin scripts to perform product configuration. The command connects to a target server by specifying the connection type (SOAP), target server, port number and script file. The scripts have been successfully tested in a standalone environment. But, after the node is federated, the updates made are only visible for a limited amount of time. What should the system administrator do to fix this problem?
Verify that deployment manager is set as the target server.
A system administrator suspects that the web server plug-in is not configured correctly causing errors when attempting to access a Java servlet. Which component can the system administrator access directly to by-pass the plug-in and ensure the application is functional?
A system administrator created multiple production cells for a company. Each cell contains multiple clustered application servers. The administrator needs to configure an external HTTP server to route requests to the multiple cells. How can the system administrator configure a web server to route traffic to multiple unrelated cells?
Run the pluginMerge script.
A system administrator is planning to use Intelligent Management features in an existing cell with managed web servers running in the DMZ. The system administrator has created the On Demand Router (ODR) server, however, no traffic is routed to the application servers through the ODR. What should the system administrator configure to fix this issue?
Add web servers as secure proxies for the ODR, generate plugin-cfg.xml and copy to the web servers.
An application development team has developed a new version of an application that needs to be rolled out to a selected group of users for testing while the other users can continue to access the old version of the application. What configuration should the system administrator do in order to achieve this?
Activate concurrent application editions and establish routing policies.
A system administrator needs to configure the administrative console such that the changes made by one user are seen by another user when both are logged in at the same time. Which setting in the console preferences should the system administrator select to achieve this?
Enable automatic refresh of workspace
A system administrator wishes to use Cross Component Trace (XCT) to follow the end-to-end flow requests in a cluster. The administrator enables log and trace correlation, but cross component trace appears to lack the necessary request IDs. What additional step needs to be taken by the system administrator to have Cross Component Trace function as expected?
Enable High Performance Extensible Logging (HPEL).
A system administrator notices that only one of the two available cluster members is receiving HTTP requests. The http_plugin.log shows that the other cluster member is constantly marked down even though it is up and running. What should the system administrator do to follow the request process flow to help diagnose the problem?
Change LogLevel="Trace" in the plugin-cfg.xml file and view the http_plugin.log
A system administrator has added a server cluster as a member of a service integration bus. The system administrator needs to configure one messaging engine for each server in this cluster and to have a failover location for each messaging engine. Which messaging engine policy should the system administrator configure to achieve this?
Scalability with high availability
In a test environment, a system administrator has configured an external HTTP in the DMZ that is routing to a cluster of application servers. The administrator wants to achieve high results and performance when routing and prioritizing incoming requests to the back-end cluster. How can the system administrator achieve this task?
Place an On Demand Router (ODR) between the external web servers and the application servers.
After deploying a new application to a high load production system, a memory leak has been detected which causes OutOfMemory exceptions. After fixing this, a system administrator needs to gather JVM heap dumps and restart the server in case a memory leak is detected in the future. How should the system administrator handle this without writing a script? Create a health policy which will:
put the server in maintenance mode, gather JVM heap dump and restart the server.
An enterprise application needs to be deployed into a production WebSphere Application Server environment. The EAR contains application scoped resources which will conflict with the resource definitions that already exist in the federated environment. How can the system administrator ensure that the enterprise application uses only the already existing resources?
Make sure that Process embedded configuration is not selected during the deploy process.
A system administrator was asked by the development team to inform them of any warning message which contains a string "Connection" on a WebSphere Application Server with High Performance Extensible Logging (HPEL) enabled. What should system administrator do to continuously monitor logs for the required message?
Use the logviewer.sh or logviewer.bat command with appropriate options.
A system administrator needs to view the list of certificates for unmanaged web server located on a remote system. How should the system administrator do this?
Use iKeyman to view the keyring.
A system administrator needs to install an IBM fixpack to a WebSphere Application Server V8.5 node to resolve a security issue. The fixpack needs to be installed to both local and remote installations. How can the system administrator accomplish the task from a single workstation?
Create a response file and use the IBM Installation Manager and the job manager to install the fixpack.
A system administrator observed a decreased performance of a web application. During investigation, the system administrator found that there were frequent garbage collections. A WebSphere Application Server is running on 32-bit platform with 8GB of memory, and with default settings for the JVM. What does the system administrator need to change to improve performance?
Increase the JVM maximum and the initial heap size.
In a production environment, a system administrator tuned the data source statement cache to optimize the processing of prepared statements and callable statements by caching those statements that are not used in an active connection. When the cache is full, old entries in the cache are discarded. The administrator would like to get statistics on the number of statements discarded from the cache to determine how to minimize cache discards. How can the system administrator obtain this information?
Use the Tivoli Performance Viewer.
Which statement is accurate regarding business-level applications?
Make a Java EE application a business-level application and add it to another business-level application.
A system administrator needs to tune the connection pool size parameters for a data source based on the current pool usage and the application server CPU utilization. Which of the following will provide the system administrator a recommendation on the efficient values for pool size?
Performance advisor for connection pool size
A Messaging Engine that persists data inside the message store has crashed and the backup of the configuration data is also not available. What should the system administrator do to restore the configuration data of the queues and topics?
Use recoverMEConf ?g command from wsadmin.
A system administrator needs to control which staff members have access to manage certain application servers. They choose to use fine grained control and map the staff members to only those specific application servers to which they need access. What does the system administrator need to do to accomplish this?
Use an Administrative Authorization Group to map the staff members and roles to the application servers.
A new security requirement needs to be implemented in the WebSphere Application Server environment. Any application deployed to the WebSphere Application Server cannot have a direct access to the file system if it is not needed. What should the system administrator do to enforce this requirement?
Enable Java 2 Security and modify policy files.
A system administrator has configured a cluster containing 40 servers. The cluster members all belong to one core group. While examining the log files, the administrator notices that the core group coordinator is consuming abnormally high amounts of memory and CPU resources. How can the system administrator reduce the memory and CPU resource usage of the core group coordinator?
Configure a second coordinator.
A system administrator is asked to increase the logging level of an e-commerce application running on a production server to help developers troubleshoot a problem that is difficult to reproduce. The requester wants lengthy comprehensive logs to locate the root cause of the problem. The application is responsible for the online shopping experience of thousands of customers daily. The administrator is concerned about degrading performance of the application with the major shopping weekend approaching. How can the administrator address their performance concerns and satisfy the needs of the developers?
Enable High Performance Extensible Logging (HPEL) and disable the HPEL text log.
Jython scripts have to be created for common administrative tasks using the IBM Assembly and Deploy Tool (IADT). For each task performed through the administrative console, a system administrator needs to redirect the Jython commands into the IADT to quickly create these scripts. How should the system administrator do this?
Enable Command assistance notifications
A system administrator has made a configuration change to the cell repository that needs to replicate to a node. The node agent of the node is currently in stopped state. What must the system administrator do to synchronize the nodes with the deployment manager?
Execute the command syncNode <deploymgr host> <deploymgr port> [options]
A new system administrator is working on a script to retrieve specific configuration information from every server in a WebSphere Application Server cell for a new report being created. One of the first things the script will need to do is determine which servers are in the cell. After spending several hours writing complex scripting to determine which servers are in the cell, a colleague shares with the new administrator a one line command that returns a list of all the servers contained in the cell. Which wsadmin object was introduced to the new system administrator by the colleague?
A system administrator is monitoring a web application and needs to find the slowest JSP page when a typical client load is run against the server. How can the system administrator find it?
Use the Tivoli Performance Viewer (TPV) and view the Servlet Summary reports.
A system administrator is seeing data source naming exceptions during runtime and needs to check the JNDI name of the Java Transaction API (JTA) data source used within an Enterprise Java Beans (EJB) module. Which file should the administrator examine?
An application that uses HTTP Session objects has been deployed on a horizontal cluster. A system administer needs to configure the memory-to-memory session replication so as to maximize the chances of successful session failover. How should the system administrator configure a replication domain?
Select entire domain for the number of replicas.
A system administrator has configured a clustered production WebSphere Application Server environment. The administrator is now tasked with deploying batch applications to the production environment and needs to run the batch jobs in parallel. Which of the following is a minimum requirement for the parallel job manager database configuration? One database:
for the cell.
A system administrator needs to install IBM Installation Manager on a remote host using Flexible management. To do so, on which host machine should the system administrator download the Installation Manager "kits"? (choose 2)
A system administrator has deployed web applications to a clustered environment where database session persistence is configured. The administrator needs to improve both the response time and the system load with the application servers. How can the system administrator do this?
Configure dynamic caching.
A system administrator has created a dynamic cluster in a production environment. During the autonomic server start and stop operations, it was observed that the server is taking more time than normal and the administrator is always called for manual start/stop of the servers. What should the system administrator tune to avoid manual intervention?
Application placement controller.
A system administrator has configured a clustered environment where session persistence is configured. While tuning the environment, the administrator enables verbose garbage collection. Now the administrator is seeing a high CPU usage for the servers in the cluster and begins seeing out-of-memory exceptions in the log files. How can the system administrator diagnose what is accumulating in the memory and causing the out-of-memory exceptions?
Use the Garbage Collection and Memory Visualizer tool in the IBM Support Assistant.
A system administrator needs to configure Single Sign-on (SSO) using LTPA for an application which will run in two cells. What is one of the key steps in configuring cross cell authentication?
Export the LTPA keys from one cell and import them into the other.
A system administrator is configuring an IBM WebSphere Application Server cell at a company that has a policy requiring communication between web servers and application servers be done via SSL. The cell profiles have been created using the default certificate configurations and leverage the internal deployment manager SSL management. What is required by the web server plugins to ensure SSL communications between web servers and application servers?
The cell root signer certificate must be in the web server plugin keyrings.
A system administrator needs to create a diagnostic trace for an application server which has a problem that occurs only infrequently. The desire is to limit the amount of space taken up by the trace output file but still ensure that the log includes the trace information recorded during the problem. What should the system administrator do to accomplish these goals?
Configure the trace output to use a memory buffer and do a manual dump when the problem occurs.
A system administrator has just built a WebSphere Application Server node to replace a node lost to disk failure. The system administrator wishes to reincorporate this node into the existing WebSphere Application Server cell and use the prior configuration information. Unfortunately, the backup of the cell is extremely out of date. What should the system administrator use to accomplish this task?
A system administrator would like to see new type of audit events in a log. After creating a new event filter, and adding it to a default audit service provider, the system administrator cannot see any new events generated. What additional configuration does the system administrator need to do?
Add the event filter to the audit event factory.
A system administrator needs to collect Performance Monitoring Infrastructure (PMI) data on response time of a servlet. The system administrator wishes to use HTTP to avoid issues with firewalls and needs XML as output. How can the system administrator achieve this?
Use Performance Servlet
A system administrator needs to define an alternate security configuration for one of the clusters in a cell. As a whole, the cell uses a Federated Repository. The cluster in question needs to define a specific stand-alone LDAP server. How could the system administrator accomplish these requirements?
Create a new security domain mapped to a scope of the cluster. Then assign the security attributes for the User Realm to use the stand-aloneLDAP server.
An e-commerce application has been deployed on a WebSphere Application Server cluster with four cluster members. While a customer is shopping on the website, one of the application servers within the cluster fails. How does the system administrator need to configure the cluster so that the application's users do not get logged out of the application if the server fails?
Configure memory-to-memory session replication
A system administrator needs to create a deployment manager and a federated node in one iteration through the Profile Management Tool. Which profile type should the system administrator select?
A developer has just given the system administrator an EAR file that needs to deployed to the application server. The developer tells the system administrator that the EAR requires a driver for the new XYZ database that has been tested. What additional steps must the system administrator take to ensure the EAR deploys successfully to the application server?
Create a data source and JDBC provider for the new database.
A company needs to use the same application server configuration to test the application in development, test and pre-production environment. It would like to back up the server configuration from the development environment and restore it in other environments. How can the system administrator meet this requirement?
Use the wsadmin AdminTask exportServer and wsadmin AdminTask importServer commands.
An administrator needs to move an application from a Liberty profile development environment to a production Network Deployment cell. What steps should the administrator take to deploy the application in the production cell?
Deploy the application EAR file through the deployment manager and define the resources defined in the server.xml.
A system administrator has been asked to create a scripted installation process for a heterogeneous production environment. Periodically, the system administrator will need to silently install the product, apply fix packs, rollback, and uninstall the product as needed. What method should the system administrator use to only generate the response files for the scripted process?
Start the Installation Manager command line with the -skipInstall and -record options.
A system administrator needs to add a file to update an already deployed application using the monitored directory deployment feature. How should the system administrator do this?
Create a properties file and copy it to the monitoredDeployableApps/deploymentProperties directory.