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

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

2. A custom hierarchy property location is defined for each rule to specify geographical location to which the rule applies. The following figure shows the value of the location property for various rules.

An application developer wants to select all rules that apply to Los Angeles. For example, Rule 1, Rule 2 and Rule 3. Which runtime rule selection Business Action Language (BAL) construct should the application developer use?

A) the location of the rule is 'Los Angeles'
B) the location of the rule is over 'Los Angeles'
C) the location of the rule is greater than or equal to 'Los Angeles'
D) the location of the rule is under 'Los Angeles'

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) 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.
B) Set the domainValueProviderName property on the BOM class and integrate the implementation class of interface IlrValueProvider into DecisionCenter.
C) Set the domainValueProviderName property on the BOM class and integrate the implementation class of interface IlrBOMDomainValueProviderinto Decision Center.
D) Change the BOM class to add the virtual method: Collection getValues(IlrClass class) for loading data from the database and generatingdomain values.

4. The Java method Customer.getLastOrderAmt() is verbalized as last order amt} of {this}? and returns the amount of the last customer order. The rule authors decided that ?amt? should be spelled out as ?amount? in rule artifacts. Many rule artifacts already exist using the ?amt? abbreviation. To address the new requirement, the application developer should:

A) use Alt+Shift+R from a rule editor to rename ?amt? to ?amount? and apply refactoring to the rule artifacts.
B) rename the Business Object Model (BOM) method and perform a BOM update to refactor the rule projects.
C) edit the subject used in the verbalization and apply refactoring to the rules.
D) use a semantic query with an action to refactor the rule artifacts.

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) Use an Embedded Derby database.
D) Tune the JVM maximum heap size.

Solutions: