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

1. A rule task associated with 10 action rules performs elaborate computations on a set of objects. The action part of the rules changes the state of the objects involved in the conditions so that the firing of one rule may cause another rule to fire. For the computation to be correct, the firing of rules should continue until there are no more rules eligible to fire. How should the application developer implement this requirement? Set the rule task algorithm to:

A) RetePlus and check "Update object state" on BOM members as needed
B) Fastpath and implement a loop construct in the ruleflow
C) Sequential and implement a loop construct in the ruleflow
D) Fastpath and check "Update object state" on BOM members as needed

2. The rule 'NewYearDiscount' was introduced to apply a 30% discount based on quantity purchased and coupon code for the store items with id 1000, 1001 and 1002. The IRL for the rule is as follows:

What should the application developer do?

A) Initialize LineItem instances with a default non-null coupon code.
B) Fix the implementation of the LineItem.toString() method to handle null cases.
C) Fix the ruleset invocation code to pass non-null Order and LineItem instances.
D) Initialize LineItem instances with a default quantity and ID.

3. The response time of Decision Center while browsing and editing rule artifacts is slow. What should the application developer do to improve the performance?

A) Augment the number of Business Object Model (BOM) entries and add more verbalizations.
B) Increase the Execution Unit (XU) connection pool size.
C) Use an Embedded Derby database.
D) Tune the JVM maximum heap size.

4. An application developer is in charge of synchronizing changes in a rule project between Decision Center and the Source Code Control (SCC) tool used for development. Which rule project artifacts should the application developer exclude from SCC?

A) resources and templates folders
B) resources folder and .syncEntries file
C) output, templates and queries folders
D) output folder and .syncEntries file

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 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 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: