Microsoft Azure Security Engineer Associate AZ-500 Practice Question
Your company stores customer payment data in an Azure SQL Database that already has Transparent Data Encryption enabled. Support engineers occasionally run ad-hoc SELECT statements by using the Query editor in the Azure portal, but they must never see the full credit-card number. The finance application that connects with a dedicated SQL login must continue to retrieve the complete values unchanged and no code changes are allowed. Which Azure SQL feature should you implement to meet these requirements?
Column-level encryption implemented with T-SQL symmetric keys
Dynamic data masking on the credit-card column
Row-level security that filters support engineer queries
Dynamic data masking can be configured on specific columns (for example, the credit-card number) so that ad-hoc queries executed by non-privileged principals return only a masked value such as XXXX-XXXX-XXXX-1234. Privileged logins, such as the one used by the finance application, can be added to the UNMASK permission and will continue to see the original data. Always Encrypted and column-level encryption require application or driver changes, while row-level security controls row visibility rather than column content.
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Microsoft Azure Security Engineer Associate AZ-500
Secure compute, storage, and databases
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