Question 210
A company needs an exact SQL Server instance configuration with native backup chains but chooses a lightweight schema/data export as its only rollback strategy. Which diagnostic evidence should the database administrator check FIRST?
Explanation
Correct Answer
Inspect backup format, target offering limits, export size, authentication mapping, integrity checks, DBCC findings, workload baselines and cutover test results. This is the discriminating system or configuration evidence for the case. A BACPAC export captures schema and data for applicable databases but is not an instance backup that automatically recreates all server features and jobs. Corresponding approach: Use supported backup/restore, BACPAC or database-copy methods based on source/target compatibility and offline downtime budget, then validate security, consistency and performance after migration.
Incorrect Answers
Inspect installed Arc agent/extensions, SQL resource inventory, policy assignments, supported assessment features, connectivity and data residency needs. These checks primarily test Azure Arc-enabled SQL and hybrid fleet governance instead of the critical system behavior in this case. Examine: Inspect backup format, target offering limits, export size, authentication mapping, integrity checks, DBCC findings, workload baselines and cutover test results.
Collect source version, compatibility level, blockers, logins, SQL Agent jobs, linked servers, TDE key dependencies, storage size and application integration map. These checks primarily test Azure SQL migration assessment and feature compatibility instead of the critical system behavior in this case. Examine: Inspect backup format, target offering limits, export size, authentication mapping, integrity checks, DBCC findings, workload baselines and cutover test results.
Inspect predicate selectivity, partition elimination, split/merge plans, aligned indexes, compression CPU overhead and real data size reduction. These checks primarily test Table partitioning compression and scale-out tradeoffs instead of the critical system behavior in this case. Examine: Inspect backup format, target offering limits, export size, authentication mapping, integrity checks, DBCC findings, workload baselines and cutover test results.


