CPSA - Certified Pega System Architect Business Logic and Decisions Questions and Answers

Question 1

An insurance company determines car insurance premiums based on two independent factors: the driver's age group (e.g., 18-25, 26-40, 41+) and the vehicle's safety rating (e.g., Low, Medium, High). The logic is represented as a grid where each combination of age group and safety rating has a specific premium amount. Which type of decision rule is most suitable for modeling this requirement?

Accepted Answer

Decision Table

Answer

A Decision Table is ideal for logic that can be represented as a table or grid, where the result depends on testing the values of multiple independent properties. It evaluates rows of conditions to return a value, which perfectly fits this scenario.

Question 2

In an order management application, the `LineItemTotal` property must always be equal to the `Quantity` multiplied by the `UnitPrice`. A system architect needs to ensure that whenever `Quantity` or `UnitPrice` is changed by the user, `LineItemTotal` is automatically recomputed in the background without requiring a user action. Which rule should be used to configure this automatic calculation?

Accepted Answer

A Declare Expression configured on the `LineItemTotal` property.

Answer

A Declare Expression defines a computation that automatically updates a target property's value whenever any of the source properties in the expression change. This is the most efficient and declarative way to handle such calculations using forward chaining.

Question 3

A company's internal application needs to display the full name of a department based on its two-letter abbreviation. For example, 'HR' should map to 'Human Resources', 'FN' to 'Finance', and 'IT' to 'Information Technology'. The logic involves a single input (the abbreviation) mapping to a single output (the full name). Which rule is the most direct and efficient way to implement this one-to-one mapping?

Accepted Answer

Map Value

Answer

A Map Value rule is specifically designed for mapping a single input value to a corresponding single output value. It is simpler and more efficient than a Decision Table or Decision Tree for this type of one-dimensional mapping.

Question 4

A bank needs to determine the required level of approval for a loan. If the loan amount is less than $50,000, it requires 'Loan Officer' approval. If the amount is between $50,000 and $250,000, the logic then checks the applicant's credit score. If the score is above 700, it requires 'Manager' approval; otherwise, it requires 'Senior Manager' approval. Which rule best models this nested, if-then-else logic?

Accepted Answer

Decision Tree

Answer

A Decision Tree is ideal for implementing complex, nested conditional logic (if-then-else). It evaluates conditions in a hierarchical structure, which perfectly matches the scenario where one condition (loan amount) determines which subsequent condition (credit score) should be evaluated.

Question 5

A business rule for a new credit card application states that the applicant's requested credit limit (`.RequestedLimit`) cannot exceed their calculated maximum allowable limit (`.MaxAllowableLimit`). If a user enters a value for `.RequestedLimit` that is too high, a message must be displayed immediately on the screen, even before the form is submitted. Which rule should be used to enforce this immediate validation?

Accepted Answer

A Declare Constraint on the `.RequestedLimit` property.

Answer

Declare Constraints are used to enforce that a specific condition on a property is always true. If the condition is violated, the system immediately flags the property with an error message, providing instant feedback to the user as data is entered.

(CPSA) Certified Pega System Architect Practice Test

(CPSA) Certified Pega System Architect Practice Test

CPSA - Certified Pega System Architect Business Logic and Decisions Questions and Answers