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

1. A bank is developing a loan application system with business rules. An application developer adds a ruleset parameter loanReport of type LoanReport which contains the ?valid? attribute. The application developer needs to initialize the ruleset parameter ?loanReport? and set default value of the valid attribute to ?true? with ILOG Rule Language (IRL) code. How should the application developer do this?

A) Set the default value of the loanReport parameter to: new LoanReport(valid=true)
B) Add an Action task node in the ruleflow, and enter the IRL code to set the default value.
C) In the transition that links Start node to the first rule task, enter the IRL code to set the default value.
D) Add a rule task node in the ruleflow and in its Initial Action section enter Business Action Language (BAL) and edit the IRL translation.

2. A ruleset is deployed to Rule Execution Server and the rule administrators requested that Decision Warehouse be used to store trace information about ruleset executions. What should the application developer do to activate tracing on the already deployed ruleset?

A) Use the res-deploy Ant task with the correct parameters to enable tracing on the deployed ruleset.
B) Navigate to the ruleset within Rule Execution Server console and add the ruleset.trace.enabled property.
C) Navigate to the ruleset within Rule Execution Server console and click the Show Monitoring Options to enable tracing.
D) Tracing cannot be enabled without deploying the ruleset again with the monitoring.enabled ruleset property set to true.

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) In the ra.xml file, set the asynchronousRulesetParsing property to false to handle concurrent requests.
B) Make sure the cache is empty before the first ruleset is parsed.
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. 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 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.
B) 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.
C) 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.
D) 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.

5. The following figure shows the organization of rule project references.
-Project B and Project C reference Project D -Project A references Project B and Project C Where should the application developer define a ruleset parameter so that the parameter is visible in all the rule projects?

IBM 000-400 Exam

A) Project A
B) Project C
C) Project B
D) Project D

Solutions: