Question 550
A marketplace has multiple transactional databases and wants a repeatable migration into managed SQL with minimal downtime. Which limitation must be considered before claiming the issue is fully resolved?
Explanation
Correct Answer
Tool support does not guarantee that application schemas and extensions are compatible. This caution prevents extrapolating beyond the specific evidence or product boundary. Migration tooling is useful only within a tested source, target and cutover contract. The unresolved point should be tested using source engine versions, migration service support, replication lag and integrity tests rather than assuming a working interface proves full compliance or resilience.
Incorrect Answers
Managed migration tooling eliminates all application-level schema compatibility concerns. This limitation is framed as a blanket exception, but the case requires a different, narrower caution. The relevant boundary is that tool support does not guarantee that application schemas and extensions are compatible. Migration tooling is useful only within a tested source, target and cutover contract. Inspect source engine versions, migration service support, replication lag and integrity tests.
Migration tool success is proof that every future client query will be compatible. The proposed claim mistakes an incomplete signal or product feature for a universal guarantee. The relevant boundary is that tool support does not guarantee that application schemas and extensions are compatible. Migration tooling is useful only within a tested source, target and cutover contract. Inspect source engine versions, migration service support, replication lag and integrity tests.
Supported migration tools can be run without managing source credentials or cutover ownership. This claim exceeds the evidence and ignores an important risk or operational dependency. The relevant boundary is that tool support does not guarantee that application schemas and extensions are compatible. Migration tooling is useful only within a tested source, target and cutover contract. Inspect source engine versions, migration service support, replication lag and integrity tests.