Q's re: Registration and working in Canada

hello!
i would like to ask filipino nurses in canada who went thru the process.. and all those who are knowledgeable on the matter.
If I will have been made eligible by CRNBC, how do i take the exam, do i have to get a visitor's visa to come to canada for the exam? or the agency/employer will work it out for me? how long after the exam are results released? Supposing i pass it, can I already start working as RN?
Thank you, Happy Holidays!!