ADO.NET uses a disconnected architecture, where users work on the dataset rather than the database.

What do you think are the advantages of this architecture?

1. Scalability
2. Data source and dataset independence
3. Strong typing
4. Ability to read both SQL and Oracle databases

Scalability is correct. The disconnected nature of ADO.NET means users spend less time connected to the database, allowing more users to work with the same data.

Data source and dataset independence is correct. The dataset in ADO.NET is completely separate from the data source. This means it's not limited by the source's functionality, and a change in the data source shouldn't require much change in the code used to access it.

Strong typing is correct. ADO uses the Variant type as standard, because it was the only type understood by scripting languages, but this type is memory intensive. ADO.NET allows strong typing, which means the compiler will detect type mismatches.

Ability to read both SQL and Oracle databases is incorrect. Actually, both ADO.NET and ADO are capable of interacting with different types of databases