Recommend for SAS

Hello, this is Navjot from Delhi, India. 
Today I have successfully passed a second SAS certificate, i.e. SAS Advanced Programming Delta and for both of these certifications, I have prepared on The Questions on the practice mock test are very helpful and helped me a lot in understanding my mistakes. 
I would recommend this web for preparation for SAS Base and SAS advanced certifications, I have used for both.