MS-740 passed on second attempt — what actually changed my score from 62% to 84%
Failed the MS-740 the first time with a 62% and honestly wasn't sure what went wrong. I'd studied the docs for about 3 weeks, maybe 90 minutes a day, but the questions on call quality issues and network diagnostics completely caught me off guard.
The second time I shifted my focus hard toward Teams Phone troubleshooting and the call analytics dashboards in the admin center. That stuff made up what felt like 30–35% of the exam for me. I also drilled the PowerShell commands for policy assignments until I could write them from memory.
Ended up hitting 84% on the second attempt after about 5 additional weeks of targeted prep, roughly 2 hours daily. The direct routing section is no joke — SBC configuration, SIP trunks, media bypass settings. If you're weak there, that's where points bleed.
One thing I wish I'd done earlier: actually spin up a Teams tenant and break things intentionally. Reading about troubleshooting is nothing like diagnosing a dial plan failure in a real environment.
84% is solid, congrats. I'm sitting mine in about 3 weeks and the direct routing section is exactly where I'm losing points on practice runs. How granular did the actual exam get on SBC pairing steps?
I've been doing about 2.5 hours a day and feel decent on governance and meetings but shaky on voice.
The PowerShell angle is real. I'd say about 20% of what tripped me up was knowing which cmdlet does what versus where to find it in the GUI. They test both and you can't assume one covers the other.
The call analytics piece wrecked me on my first attempt too. I didn't realize how deep they go on per-user call quality data versus the Call Quality Dashboard at the tenant level. Spent an extra week just on that distinction alone.
Just want to add — the network readiness section hit harder than expected. QoS policy settings, bandwidth requirements for different call types, how Teams interacts with split-tunneling VPN configs. Not glamorous but it's on there.
The thing that actually shifted everything for me was stopping myself from moving on until I understood why each wrong answer was wrong, not just which one was right. It sounds obvious but I wasn't doing it. I'd get a question about call quality degradation and mark the correct answer and just move on, never stopping to think about why the other three options don't apply. Once I started working through that for every single practice question, patterns clicked in a way that just reading docs never did.
Honestly the "why is this wrong" approach is especially brutal with the network diagnostics stuff because Microsoft loves to write distractors that sound totally reasonable. You've got to be able to articulate why rebooting a Teams client doesn't solve a PSTN routing issue, not just recognize that it doesn't. If you can't explain the wrong answers out loud, you don't actually know the material well enough yet. That's the test I kept giving myself the second time around and it's what got me from failing to an 84.