Question 310
At Northgate Telecom, the subscriber data engineering team maintains a multi-region billing and service database environment with requirements for predictable availability and measured database recovery. The operations owner asks for a validation result for: A SQL database reaches high transaction log write utilization but operations increases CPU blindly because it reads only total DTU or vCore usage. Which observed result BEST proves the intended problem is corrected?
Explanation
Correct Answer
A targeted storage or workload change reduces the log-write bottleneck and transaction commit delays in a controlled comparison. That observable result supports resolution of: A SQL database reaches high transaction log write utilization but operations increases CPU blindly because it reads only total DTU or vCore usage. The corresponding corrective change is: Interpret transaction log I/O and resource governance metrics alongside CPU, data I/O and workload latency before choosing remediation. The Northgate Telecom reviewer can distinguish demonstrated database behavior from an untested change claim.
Incorrect Answers
A controlled deadlock produces an analysable event file while ordinary Query Store query metrics remain unaffected. That result is evidence for another corrective change: Use an appropriately scoped Extended Events session to capture the needed deadlock or engine diagnostic information safely. The alternative problem is: An operations team assumes Query Store replaces every server-wide Extended Events diagnostic needed for deadlock investigation. The current Northgate Telecom issue is instead: A SQL database reaches high transaction log write utilization but operations increases CPU blindly because it reads only total DTU or vCore usage. Its decisive acceptance evidence would be: A targeted storage or workload change reduces the log-write bottleneck and transaction commit delays in a controlled comparison.
Database watcher gathers the intended metrics across target databases and a test resource regression appears in its monitoring view. That result is evidence for another corrective change: Configure a supported database watcher deployment with the necessary collection identities, targets and visualization for the SQL resources. The alternative problem is: An Azure SQL estate needs centralized long-running health analysis but operations collect disconnected screenshots instead of using database watcher. The current Northgate Telecom issue is instead: A SQL database reaches high transaction log write utilization but operations increases CPU blindly because it reads only total DTU or vCore usage. Its decisive acceptance evidence would be: A targeted storage or workload change reduces the log-write bottleneck and transaction commit delays in a controlled comparison.
The collector still receives required operational observations but a test unauthorized DDL operation by that identity is denied. That result is evidence for another corrective change: Use the minimum supported monitoring permissions and separate observability identities from database administration roles. The alternative problem is: An Azure SQL Database watcher account has excessive permissions because an initial deployment granted full database ownership for simple monitoring. The current Northgate Telecom issue is instead: A SQL database reaches high transaction log write utilization but operations increases CPU blindly because it reads only total DTU or vCore usage. Its decisive acceptance evidence would be: A targeted storage or workload change reduces the log-write bottleneck and transaction commit delays in a controlled comparison.