Sites with C# Test

1.https://www.testdome.com/Programming-Tests/Csharp/18 [free with sertificates]
2.https://tests4geeks.com/
3.https://www.careercup.com/
4.http://programmers.stackexchange.com/questions/117716/the-dreaded-c-programming-interview-test-any-advice[Questions]