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IBM WebSphere Operational Decision Management V8.0 Application Development Sample Questions:

1. CORRECT TEXT
Business users would like the output of a simulation run to be displayed as a pie chart. What should the application developer do to implement this requirement?

A) Implement the interface IlrScenarioSuiteKPIRenderer and repackage the Decision Center EAR file to include this new class.
B) Create a custom JSP page that includes pie chart widget and repackage the Decision Center EAR file to include this JSP Page.
C) Implement the interface IlrScenarioSuiteResourcesRenderer and repackage the Decision Center EAR file to include this new class.
D) Implement the interface IlrKPIResultAggregator and repackage the Decision Center EAR file to include the new class.

2. A company implemented a report data validation system with business rules. As there is a large volume of data, the design team has decided to run validations in batch and parallel mode. The ruleset will be executed in Java SE and the maximum number of threads executing rules is 20). When an application developer tests the rule execution code, the following exception comes up: ilog.rules.res.session.IlrSessionException: An error occurred while the rule session was called: ilog.rules.res.xu.cmanager.impl.IlrLocalizedResourceAllocationException: Default connection manager pool is full, error code: GBRXU0200E ilog.rules.res.xu.pool.IlrPoolException: Pool of connections is full What should the application developer do to resolve the exception?

A) Set pool size of the Execution Unit (XU) connection factory in the application server to 20.
B) Configure the IlrSessionRequest class to set connection pool size to 20.
C) Edit the resource adapter descriptor file ra.xml to set the pool.maxSize property to 20.
D) Set the ruleset property pool.maxSize to 20.

3. A company is running 20,000 rules in one ruleset and experiences latency during some ruleset executions. No hot deployments are used. After reviewing the execution traces, the application developer recognizes that the performance is affected by reparsing of the same ruleset after overnight inactivity. What should the application developer do to minimize the impact of ruleset parsing and speed up performance?

A) Make sure the cache is empty before the first ruleset is parsed.
B) In the ra.xml file, set the asynchronousRulesetParsing property to false to handle concurrent requests.
C) Set the ruleset property ruleset.maxIdleTime to 0 to ensure the ruleset is not removed from cache.
D) In the ra.xml file, set the pool.maxSize parameter to make sure that the number of active rulesets is greater than the size of the XU connection pool.

4. Business users want to be notified when a RuleApp has been updated or deleted. What should the application developer do to support this requirement?

A) Create a Rule Execution Server MBeans listener.
B) Register the business user in the Decision Center Console.
C) Execute the res-jar Ant task to set up email notifications.
D) Register the business user's email in RuleApp view page in Rule Execution Server Console.

5. A Hosted Transparent Decision Service (HTDS) for a car insurance company has the following input and output. Input: A form that includes information about the driver, the vehicle and the type of insurance. Output: The cost of insurance if the request is eligible. How should the application developer implement this flow of information between the calling application and the decision service?

A) Implement an IlrContext subclass to populate the working memory with all the driver, vehicle, and insurance objects. Define a ruleset parameter to return the decision results.
B) Define one ruleset parameter to pass the driver, vehicle, and insurance information to the rule engine. Define one ruleset parameter to return the decision results.
C) Define three ruleset variables for the application to pass the driver, vehicle, and insurance input objects. Define one ruleset parameter to return the decision results.
D) Implement a database call that is triggered during rule execution so the rule engine can access all relevant driver, vehicle, and insurance information. Define a ruleset variable to return the decision results.

Solutions: