The correct answer to the question “Which ADO.NET class provide Disconnected Environment” is option (b). Data Set. Because Data Set class offer Disconnected Environment and the others don’t. If you wish to learn .NET and want to get certified in it? Then check out the .NET certification course from Intellipaat, which offers you with 55hrs of instructor-led training and 60hrs of guided projects that would help you to gain the required practical skills. Watch our following video on Learn Dot NET.