Universal Containers wants to introduce data volume testing to resolve ongoing performance defects earlier in...

The correct selection is A, B. Because regulations prohibit production data in non-production, UC can either mask a production-derived Full sandbox or generate synthetic data with production-like distribution and volume. Both approaches support realistic performance behavior without exposing regulated values. From a testing perspective, the goal is deterministic evidence that the solution behaves correctly under the conditions that matter. Tests should isolate external dependencies, use controlled data, exercise positive and negative paths, and reproduce realistic volume or user behavior where required without making production the first place defects are discovered. The rejected choices either test the wrong layer, introduce live-system dependencies, or detect problems too late to provide the deterministic early feedback expected from a mature test strategy. For this scenario, the decisive point is therefore the platform behavior represented by the selected options (A. Perform data masking on full sandbox after a refresh.; B. Generate mock data that mimics production data shape and volume.). Applying that rule consistently keeps the implementation aligned with Salesforce-supported lifecycle practices and makes the resulting change easier to review, validate, and operate across environments.

Study Guide reference: Testing — Apex testing; test-data isolation; mocks; regression testing; performance/load testing; sandbox test strategy.