Question 33
Domain 4: Deploy and operationalize machine learning solutionsWhich type of deployment enables a user to submit multiple observations (X rows) and then receive multiple predictions (Y values)?
Correct answer: D
Explanation
Real-time and batch deployment both support scoring multiple records, so a user can submit "multiple observations (X rows)" and receive "multiple predictions (Y values)." This matches the definition of batch-style inference, where predictions are returned for more than one input at a time, unlike single-record-only deployment.
Why each option is right or wrong
A. Batch only
B. Real-time only
C. Neither
D. Real-time and Batch
Real-time and batch deployments are the two inference modes that can score more than one input record in a single request, so an input set of X rows can return Y predicted values rather than only one output per call. In contrast, single-record serving is limited to one observation at a time, which would not satisfy the stated X-to-Y mapping.