IBM C2180-400

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

2. An application developer is required to implement the following business policy represented by this pseudo code which has a set of non-symmetrical rules.

IBM 000-400 Exam
What rule artifact(s) should the application developer author?

A) Two business action language rules using the else statement in both.
B) A decision table without preconditions, four condition columns, and multiple action columns.
C) A decision table with a precondition, three condition columns, and multiple action columns.
D) A decision tree with multiple branches.

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

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

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

Solutions: