1. C
2. C
3. B
4. A
5. B
6. B
7. D
8. A
9. B
10. B
11. C
12. A
13. A
14. A
15. B
16. B
17. D
18. B
Prepare for the R Programming Language Certification exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.