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

1. Decision Center contains the following:
-Two rule projects: CorporateRiskAssessment and NewYorkRiskAssessment.
-One RuleApp RiskAssessmentRuleApp with a single ruleset CorporateRiskAssessmentRuleset.
An application developer needs to deploy the NewYorkRiskAssessment rule project to Rule
Execution Server as a separate ruleset. Updates to NewYorkRiskAssessment need to be
deployed in a single action with updates to CorporateRiskAssessment. How should the application
developer setup the RuleApp structure in Decision Center to accomplish these requirements?

A) Under Configure > Manage RuleApps, click Deploy to add the NewYorkRiskAssessmentRuleset ruleset.
B) Select the NewYorkRiskAssessment rule project on the Home tab, and under Project > Manage Subbranches and Baselines > Baselines, click New to add the NewYorkRiskAssessmentRuleset ruleset.
C) Under Configure > Manage RuleApps, click New to create a new NewYorkRiskAssessmentRuleset ruleset.
D) Under Configure > Manage RuleApps, select RiskAssessmentRuleApp and click Edit to add the NewYorkRiskAssessmentRuleset ruleset.

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

3. After a company deploys their rules to production, a series of new business policies affect several of the deployed rules. The rule authors fix the rules, and the updated ruleset is deployed.
However, another business policy change makes some of the rule fixes incorrect and the original rules need to be reinstated. The rule authors ask for help from the application developer so that they do not lose their correct changes. What should the application developer do?

A) Erase the current project and synchronize with Rule Designer to get the originally deployed rules.
B) Clone the deployment baseline to a branch, and use the Diff and Merge tool to select the correct rules to keep on the current branch of the project.
C) Restore the baseline so that it becomes the current state of the project so that the rule authors redo the appropriate rule changes.
D) Unfreeze the deployment baseline so the rule authors can fix the rules again, and then redeploy the baseline.

4. An application developer is preparing to deploy the ruleset that uses a Java Execution Object Model (XOM) to a Java EE environment for remote access, using stateless rule sessions. What should the application developer do to ensure optimal execution performance?

A) Disable Java 2 Security.
B) In the ra.xml file, set the transaction-support property to LocalTransaction.
C) Change the Execution Unit (XU) traceLevel property from WARNING to FINE on the application server.
D) Set the ruleset property ruleset.sequential.trace.enabled to true.

5. 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) Set the ruleset property ruleset.maxIdleTime to 0 to ensure the ruleset is not removed from cache.
B) Make sure the cache is empty before the first ruleset is parsed.
C) 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.
D) In the ra.xml file, set the asynchronousRulesetParsing property to false to handle concurrent requests.

Solutions: