All the components take place in one round. So here's how it goes (everything that I'm saying now is public knowledge and here is the link
http://www.royalcollege.ca/rcsite/documents/ibd/radiation_oncology_examinfo_e.pdf . I am not breaking any confidentiality rules):
Comprehensive Radiation Oncology exam by the Royal College of Physicians and Surgeons of Canada. Any PGY5s training in an accredited radiation oncology program in Canada can register for it quite easily. For US applicants it's possible but I believe there's much more paperwork involved and they have to make sure that you've ticked off all the required boxes (I personally know some people from the US who've taken it in the previous 3 years, the paperwork does take sometime but it gets done).
For the written component there's Paper 1 and Paper 2. Both are Short answer question papers. There's no MCQs whatsoever in the Canadian royal college exam. Even our in-house exams are all short answers. Paper 1 is basically clinical cases with the usual questions on workup, management and some trivia. It's 3 hours long and you'll need those 3 hours. Paper 2 is the "basic sciences" paper. Basically questions on Anatomy, radiobiology, cancer biology, physics, systemic therapy, statistics, ethics plus some other miscellaneous Canada specific things. It's a pen and paper exam. The exam is usually held in an assembly hall or hotel conference room in one of the major cities in Canada. You're put in with other specialties who do have MCQ exams. You can hear them scratching their bubbles while you write your answers furiously.
The oral component is 2.5 weeks after the written. No one is held back from taking the oral exam even if they've failed the written. This year it'll be April 16 and April 17, 2019. Held in the Royal College in Ottawa. My day of reckoning is soon I suppose.
Oral exam Day 1
5 Clinical cases, each 12 minutes long. You don't know what case you're getting in advance. Could be something bread and butter that you've prepped well or it could be something rare that you haven't seen in residency. General questions about cases and their management. Some stations may also have images and they'll ask you to interpret them.
Oral exam Day 2 (yes, there's a day 2!)
"The candidate will be examined at approximately five stations for approximately 20 minutes each. Typically the candidate will be provided with material to evaluate and then engage in a discussion with one examiner. The stations typically include topics such as: target volumes definition, critical organ identification, normal tissue tolerance, dosimetry, radiotherapy planning techniques, palliative radiotherapy and skin cancer radiotherapy." So you basically have some time to prep for the case and then the examiner will ask you questions relating to the case. Again, could be something you've seen or not seen in residency. With the last two points, palliative radiotherapy and skin cancer radiotherapy are a big thing in Canada with huge emphasis on teaching those in residency. And you may be given a highly complex case scenario in those areas without fancy tools to help you.
And that's it! The results are released exactly two weeks after the oral exam concludes. If you fail one component you fail the whole thing and you have to re-take the whole thing again the following year. There are no mid year exams. We are not told if we've passed the written or not before stepping into the oral exam. So someone could be taking the oral exam with no chance of obtaining a passing grade.
Not passing the exam from the first attempt is heavily stigmatized and makes the difficult Canadian job market near impossible with regards to job prospects. Not passing the exam means no full license and without that you can't practice as an attending. I have known people who've lost attending job positions because of this exam. It's rare to get an attending job without a fellowship these days but I've seen some people who've managed that. Oh, some fellowship programs will also revoke your fellowship offer if you don't pass the Royal College exam. So there's that.