What is an example of a service tier in Azure SQL Database?

Basic is indeed a recognized service tier in Azure SQL Database, specifically designed to cater to small to medium-sized applications with light workloads. This tier offers a cost-effective option for database applications that do not require advanced capabilities or high performance, making it ideal for development, testing, or small production databases.

The Basic tier is characterized by lower performance metrics and limited database size, which aligns well with the needs of simpler applications. Users selecting this tier benefit from a straightforward pricing model that is advantageous for scenarios where maximum performance is not critical.

In the context of the other options, while Standard is another valid service tier, the answer focuses specifically on the Basic tier as a concrete example. Advanced and Enterprise may denote higher performance or features but do not represent service tiers in the context of Azure SQL Database. Shared, on the other hand, may refer to a deployment model but does not align with the well-defined service tiers provided by Azure SQL Database. Therefore, Basic is the most appropriate example in this scenario.