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

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

2. There is a RuleApp project called MyRuleApp present in an application developer's Rule Designer workspace. In addition, a ruleset interceptor com.example.MyRulesetInterceptor was implemented for the RuleApp and packaged in the relevant client EAR files. What does the application developer need to do to register the interceptor with Rule Execution Server?

A) Package the ruleset interceptor com.example.MyRulesetInterceptor inside the RuleApp.
B) Call the method setInterceptorEnabled() on the session request or session factory instances.
C) Call the method beforeExecute() during the client code before the ruleset is executed.
D) Set the ruleapp.interceptor.classname property on the RuleApp to com.example.MyRulesetInterceptor.

3. The design team decided to populate a Business Object Model (BOM) domain from a database and allow the rule authors to reload domain values within Decision Center when the database is updated. What should an application developer do to implement these requirements?

A) Set the domainValueProviderName property on the BOM class and integrate the implementation class of interface IlrBOMDomainValueProviderinto Decision Center.
B) Change the BOM class to add the virtual method: Collection getValues(IlrClass class) for loading data from the database and generatingdomain values.
C) Add a datasource which connects to the database in application server and configure Decision Center to have a reference to the datasource, and set thedomainValueProviderName property to the datasource name on the BOM class.
D) Set the domainValueProviderName property on the BOM class and integrate the implementation class of interface IlrValueProvider into DecisionCenter.

4. The Business Object Model (BOM) includes a Customer class with an Age attribute and a Score attribute both of type int. There are three rules and one query:

When the application developer runs Query 1, which rules will be returned?

A) Rule 2 and Rule 3
B) Rule 2 only
C) Rule 1 and Rule 2
D) Rule 3 only
E) Rule 1 only

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

Solutions: