IBM meilleur examen C2090-611 A2040-918, questions et réponses

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Code d'Examen: C2090-611
Nom d'Examen: IBM (DB2 10.1 DBA for Linux, UNIX, and Windows)
Questions et réponses: 118 Q&As

Code d'Examen: A2040-918
Nom d'Examen: IBM (Assessment: Developing Portlets and Web Applications with IBM WebSphere Portlet Factory 7.0)
Questions et réponses: 65 Q&As

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NO.1 Pat wants to know how many web service calls are being made in a given time frame, how long on
average each web service call is taking, and how many web service calls are failing. How can Pat obtain
such performance information?
A. That information is not yet available from the WebSphere Portlet Factory web service support, but the
application can be built to log this information itself, if desired.
B. WebSphere Portlet Factory logs all requests, average latency and faults, in the deployed applications
WEB-INF/logs/event.log file.
C. WebSphere Portlet Factory logs web service requests, average latency and faults, in the deployed
applications WEB-INF/logs/serverStats.txt log file.
D. Enable this logging using the Performance field in the Web Service Call builder, and the
information comes back with the web service call results to the consumer model.
Answer: C

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NO.2 Tim has a web application that accesses a database through a provider model containing SQL Call
builders. He thinks there might be a performance problem with one or more of the database calls. How
can he get WebSphere Portlet Factory to log detailed performance information about all aspects of the
database access.?
A. He needs to use a SQL Override builder; this builder provides several fields that enable
detailed logging of performance information for database access.
B. He must enable DEBUG-level database performance tracing in the Log4J properties file and redeploy
the WAR file.
C. He must enable the Log Server Stats field in each SQL Call builder.
D. No changes are required; WebSphere Portlet Factory automatically logs performance statistics for all
executed actions, such as database access calls.
Answer: C

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NO.3 Jeffrey is reviewing the following section of a debugTracing.txt log.
What can he infer from this part of the log?
A. The main method took no time to execute.
B. The appMainPage took 46 seconds to load.
C. The varSampleApp variable changed during or after the appMainPage loaded.
D. The varSampleApp variable was set to Chicago prior to the loading of the appMainPage.
Answer: C

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NO.4 Anna has been testing a model and is concerned about the time certain actions seem to be taking. Her
development environment is a high-end system, and other portlets she has developed have not exhibited
the kind of response time lag that she and her testers perceive. She suspects one of the data services
builders is experiencing network latency, but is unsure where the real problem lies. What actions can she
take to help isolate the performance issue?
A. Add counters to the builder calls that are suspect.
B. Consult the performance log, which is created by default with each model run.
C. Enable system tracing in the run configuration tab to log the execution time for each action (page or
method).
D. Dedicate a larger Java HEAP_SIZE to the main method associated with the model that is suspect.
Answer: C

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NO.5 The primary use for the WebSphere Portlet Factory server configuration is?
A. To deliver your application to a production server.
B. To deploy, run, and test your application on a development server.
C. To create a WAR file for manual deployment to a production or development server.
D. To give your application access to APIs that are specific to the target server.
Answer: B

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