Passed SC-300 — one of the hardest exams I’ve ever taken
I passed SC-300 today, and honestly, this was one of the hardest exams I’ve ever taken — harder than CompTIA Security+, at least for me.
I got a good score, but during the exam I had that awful feeling that I was getting everything wrong, even though I knew I was answering more than half of the questions consciously and based on concepts I had actually studied.
The exam was exhausting. A lot of questions had so much text. Some scenarios felt unnecessarily long, and there were many, many questions involving AD DS / hybrid identity concepts. At some point, I genuinely felt like the exam was trying to beat me by exhaustion more than by technical difficulty.
I finished with around 10 minutes left — maybe even less — and I had to answer two questions almost randomly because I was running out of time.
Surprisingly, I got only one question about Global Secure Access.
A few thoughts for anyone preparing:
MeasureUp could have helped me more in terms of getting used to the exam question style and timing. However, when I tried using it previously for MD-102, I felt the content was outdated for that exam, so I didn’t fully trust it this time. Still, I would recommend using MeasureUp as a test-taking practice tool, especially to get used to long scenarios and the way Microsoft phrases questions.
What helped me the most was building my own study material with Claude. That was honestly a huge help. I used it to organize concepts, explain difficult topics, create scenarios, compare services, and practice with realistic questions.
Topics I would strongly recommend reviewing:
Hybrid identity and AD DS concepts
Password Hash Synchronization, PTA, federation, Seamless SSO
Conditional Access
Identity Protection: user risk vs sign-in risk
PIM and privileged access
Access Reviews
Entitlement Management and Access Packages
External identities and cross-tenant access
Workload identities
App registrations vs Enterprise applications
Delegated permissions vs application permissions
Defender for Cloud Apps and OAuth apps
My advice: don’t just memorize definitions. The exam is scenario-heavy, and you really need to understand what each Microsoft Entra feature is used for, when to use it, and what problem it solves.
Also, manage your time. The long questions can drain you.
I’m very happy and relieved that I passed on the first attempt, but wow… this exam was intense.