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

1. 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) 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.
B) 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.
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.

2. An application developer just activated Decision Warehouse for a ruleset deployed to Rule Execution Server. The ruleset has a Business Object Model (BOM) class com.test.Customer with two large properties: Customer.largeString1 and Customer.largeString2. Activating Decision Warehouse resulted in a decrease in ruleset execution performance. How can the application developer reduce the BOM serialization performance impact and retain the ability to search input and output parameters on the Decision Warehouse tab of the Rule Execution Server Console?

A) Set the monitoring.inout.filters property to Customer.largeString1,Customer.largeString2.
B) Set the monitoring.filters property to Customer.largeString1,Customer.largeString2.
C) Set the ruleset.bom.enabled property to false and in Customer.toString() return a value containing Customer.largeString1 and Customer.largeString2
D) Set the monitoring.inout.filters property to INFO_WORKING_MEMORY=true,WORKING_MEMORY_FILTER=com.test.Customer.

3. A Record instance is passed to the ruleflow as a ruleset parameter. A rule task performs validation and should accumulate all the issues found in the Record. The associated rules have the following characteristics:
-There are numerous action rules and decision tables. ?The rule conditions only involve the
Record class and its attributes. -The rule conditions perform many different tests in various order. -The action part of the rules only adds messages to a list that is not involved in the conditions of the rules.
Which execution settings should the application developer choose for the validation rule task?

A) Algorithm: Fastpath Exit Criteria: RuleInstance
B) Algorithm: Sequential Exit Criteria: None
C) Algorithm: RetePlus Exit Criteria: None
D) Algorithm: RetePlus Exit Criteria: RuleInstance

4. A ruleset contains one rule task that uses RetePlus execution mode, and one rule task that uses FastPath. For troubleshooting purposes, the application developer implements logging of the names of all the rules fired for every ruleset execution, using the API IlrSessionRequest.setTraceEnabled(true) and IlrSessionResponse.getRulesetExecutionTrace(). What property should the application developer also configure on the ruleset?

A) ruleset.trace.enabled = true
B) ruleset.sequential.trace.enabled = true
C) ruleset.bom.enabled = true
D) ruleset.optimization.enabled = false

5. An application developer is creating the enumeration LoanType in the Business Object Model (BOM). After creating a new class LoanType in the BOM using the BOM Editor, the application developer notices the following error: [B2X] Cannot find execution class ?LoanType? for translating business class ?LoanType? What should the application developer do to remove this error?

A) Import the java.lang.String class.
B) Specify java.lang.String as a super class.
C) Specify java.lang.String as the execution class.
D) Specify LoanType as the execution class.

Solutions: