Question 30
At Westhaven Retail, the commerce database engineering team maintains a high-volume digital checkout and inventory application with requirements for fast transactions and variable seasonal demand. The acceptance review requires independent evidence for: A tenant application has outgrown the write capacity of one logical database but architects assume table partitioning creates independent database servers. Which observed result BEST proves the intended problem is corrected?
Explanation
Correct Answer
A test tenant is routed to the correct shard, writes remain isolated, and a shard move is validated without cross-tenant data loss. That observable result supports resolution of: A tenant application has outgrown the write capacity of one logical database but architects assume table partitioning creates independent database servers. The corresponding corrective change is: Evaluate explicit sharding with a stable tenant-to-shard routing strategy and independent databases instead of relying on intra-database partitions. The Westhaven Retail reviewer can distinguish demonstrated database behavior from an untested change claim.
Incorrect Answers
Connectivity, collation-sensitive queries and required drivers pass controlled pre-production checks against the documented inventory. That result is evidence for another corrective change: Create a dependency and compatibility inventory for on-premises and cloud endpoints before deploying the hybrid SQL Server solution. The alternative problem is: A hybrid SQL Server estate is moved to Azure without checking collation, network latency or client drivers required by its linked workloads. The current Westhaven Retail issue is instead: A tenant application has outgrown the write capacity of one logical database but architects assume table partitioning creates independent database servers. Its decisive acceptance evidence would be: A test tenant is routed to the correct shard, writes remain isolated, and a shard move is validated without cross-tenant data loss.
A test ERP workload runs with the required Windows and SQL Server instance features and its VM administration responsibilities are documented. That result is evidence for another corrective change: Deploy SQL Server on Azure Virtual Machines for the documented operating-system and instance feature requirements rather than assuming PaaS parity. The alternative problem is: A legacy ERP system needs supported instance-level functionality and controls over the guest operating system, but the proposal uses a single Azure SQL database. The current Westhaven Retail issue is instead: A tenant application has outgrown the write capacity of one logical database but architects assume table partitioning creates independent database servers. Its decisive acceptance evidence would be: A test tenant is routed to the correct shard, writes remain isolated, and a shard move is validated without cross-tenant data loss.
A pilot database serves the application without guest operating-system maintenance and the validated SQL features remain available. That result is evidence for another corrective change: Use Azure SQL Database as the fully managed relational platform after confirming database-level compatibility, scale and feature requirements. The alternative problem is: A transactional web application is placed on a full SQL Server virtual machine even though it requires no operating system or instance administration. The current Westhaven Retail issue is instead: A tenant application has outgrown the write capacity of one logical database but architects assume table partitioning creates independent database servers. Its decisive acceptance evidence would be: A test tenant is routed to the correct shard, writes remain isolated, and a shard move is validated without cross-tenant data loss.