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

1. 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) 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.
B) Make sure the cache is empty before the first ruleset is parsed.
C) Set the ruleset property ruleset.maxIdleTime to 0 to ensure the ruleset is not removed from cache.
D) In the ra.xml file, set the asynchronousRulesetParsing property to false to handle concurrent requests.

2. An application developer needs to implement the following business policy. All customers get a minimum discount of 5%. Customers that are 60 years old or older with an income over 100,000 get a 25% discount. All other customers 60 years old or older get a 10% discount.
The application developer already authored the following rule.

Which additional rule should the application developer author?

A) Option D
B) Option A
C) Option B
D) Option C

3. 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) Tracing cannot be enabled without deploying the ruleset again with the monitoring.enabled ruleset property set to true.
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) Navigate to the ruleset within Rule Execution Server console and click the Show Monitoring Options to enable tracing.

4. During development, a ruleset that determines the eligibility of an applicant is in the Risk Department's Decision Center repository. The architecture team decides to use the ruleset as a web service generated from a Rule Designer project wizard for other departments in the company to invoke. Which execution approach should the application developer use?

A) Hosted Transparent Decision Service with the InterceptorEnabled parameter set to false
B) Hosted Transparent Decision Service (HTDS)
C) Monitored Transparent Decision Service (MTDS)
D) Remote EJB Rule Session

5. CORRECT TEXT
A company wants to run a simulation against millions of database records to evaluate the
business impact. The Rule Execution Server and Scenario Service Provider (SSP) used to run
simulation are deployed on computer with multiple processors. What should the application
developer do to reduce time required to run the simulation?

A) Deploy the SSP onto a application server cluster.
B) Divide the database records into subsets and run the simulation against the subset data.
C) Implement a IlrParallelScenarioProvider
D) Implement IlrScenarioProvider and use multiple threads to run rule session.

Solutions: