1z0-448 question 77 discussion

Question 77

How would a Knowledge Module, that is required to perform an aggregation in a Mapping, generate
the correct code? (Choose the best answer.)

• A. The Knowledge Module must be customized because business rules and the physical implementation are strictly interlayed in ODI.
• B. The Knowledge Module must be customized only for aggregation functions.
• C. The Knowledge Module need not be customized because aggregation code is generated automatically by ODI according to the Mapping logic.
• D. The Knowledge Module need not be customized, but a variable must be used in the aggregate expression to generate the correct sum.