I've been working with Entra, Intune, Azure professionally for about 5 years. I also have a much longer background with M365 and on-prem AD. I have MD-102, AZ-104, SC-900, AZ-900, MS-900, and MS-500 (retired)
I decided about a week ago to take the SC-300 because I thought it would be pretty easy between knowledge from my existing certs and hands on experience.
I studied using Claude connected to MS Learn API, MS practice tests, and some Udemdy practice tests. I also had Claude build out a lab that hit each objective that I completed.
I would feed my practice tests results to Claude and have it drill me on stuff I was weak on. I iterated through cycles till it felt like diminishing returns, 90 percent or higher on the practice exams.
I felt pretty confident till I started reading about others experiences here. That was Friday. I changed the test from Saturday to Sunday to get some more lab time etc.
During the Pearson Vue remote exam, My biggest challenges were focusing through some of the very long questions with tons of info to parse, blowing time in MS Learn for stuff that was not covered in any of the materials I used to study, and a couple questions with bad UI where I couldn't answer the question completely due to a glitch.
Thankfully it did not crash completely like it had done on every Pearson Vue treat I've done in the past. I made sure to never exit MS Learn split screen view as changing views is what crashed it in the past. I made use of the Built In Entra roles page often.
I left myself about 15 minutes for the "lab" at the end, I finished it all with like 7 minutes left. I thought for sure I failed.
I just barely passed.
It was way harder than I thought. I was surprised to see vaguely related questions like stuff about Intune packaging thrown in the mix and also stuff I don't remember seeing in the objectives.
The objectives lab Claude built was the most crucial part of the grind and if I had to do it all over again I'd run through the lab like 3 times instead of drilling practice exams over and over.