Your company currently has an application that is hosted on their on-premises environment. The application currently connects to two databases in the…

The proposed solution is correct. Azure SQL Managed Instance is a platform-as-a-service (PaaS) offering designed for maximum compatibility with on-premises SQL Server. A key feature it supports is the ability to execute server-side transactions that span multiple databases hosted within the same managed instance. By deploying both whizlabdb1 and whizlabdb2 to a single Azure SQL Managed Instance, the application can continue to use cross-database transactions as it did on-premises, thus fulfilling the requirement.

B. This is incorrect because Azure SQL Managed Instance is specifically designed to support features common in on-premises SQL Server environments, including transactions that span multiple databases within the same instance.

1. Microsoft Learn. (2023). Group transactions within a single instance using Azure SQL Managed Instance. In "Azure SQL Managed Instance documentation". Retrieved from https://learn.microsoft.com/en-us/azure/azure-sql/managed-instance/transact-sql-tsql-differences-sql-server#transactions-with-multiple-databases. The documentation states

"Unlike Azure SQL Database

SQL Managed Instance supports distributed transactions on databases within the instance."

2. Microsoft Learn. (2023). What is Azure SQL Managed Instance?. In "Azure SQL Managed Instance documentation". Retrieved from https://learn.microsoft.com/en-us/azure/azure-sql/managed-instance/sql-managed-instance-paas-overview. This overview highlights the high degree of compatibility with the on-premises SQL Server Database Engine

which includes native support for features like cross-database queries and transactions.