Finally passed my DCA after failing twice — here's what actually worked — Forums

Jordan L.OP

May 27, 2026

Okay so I've been lurking here for a while and I figured I owe this community a proper write-up since you all helped me get through this. Failed the DCA back in November (scored a 58, needed a 65) and again in February (62, so close it hurt). Third attempt last week and I finally passed with a 71. Three tries, probably 120+ hours of studying across six months — not my proudest moment but I'm certified now so whatever.

The thing that finally clicked for me was switching up how I was studying. I'd been reading the Docker docs obsessively but not actually testing my knowledge under exam conditions. Started using a DCA practice test almost daily in the last month and it was a completely different experience — you realize fast which areas you think you know vs. which ones you actually know. Networking and orchestration concepts wrecked me both times I failed.

Happy to share my full study guide breakdown if anyone wants it. Biggest exam tips: don't underestimate the storage/volumes section and make sure you can read and troubleshoot actual Docker Compose files, not just write them from scratch.

Sarah M.

May 28, 2026

Congrats on passing! Third time took me too for a different cert and honestly I think the repeated attempts teach you more than any single cram session would. The networking piece is brutal — I spent like three weeks just on overlay networks and bridge drivers. Did you use any specific practice test platform or just the free stuff floating around? I've been prepping for about six weeks and feel like I'm plateauing around the same score range you mentioned.

Sofia R.

May 28, 2026

The Compose troubleshooting tip is gold. I passed last year and that caught me off guard too. Also — security topics. Don't sleep on secrets management and user namespaces. Showed up more than I expected.

Brian Y.

May 28, 2026

This is really encouraging to read. I'm a sysadmin who's been using Docker for years in production but the certification stuff trips me up because I know how I do things, not necessarily how Docker officially categorizes things. The exam feels weirdly academic sometimes. How much did the practice questions actually match the real exam format? I keep hearing mixed things — some people say it's close, others say the real thing is way harder.

Finally passed my DCA after failing twice — here's what actually worked

Join the Discussion

Related Discussions