The nested VCF home lab has been running on Workstation for a few weeks now, and it's doing what home labs do best — telling me the truth about what I actually know versus what I think I know. I sat 2V0-12.24 last cycle and walked away with a perfect 300. That result made me confident. It also made me a little careless about assuming 2V0-16.25 would be more of the same. It isn't. VCF Administration pulls in operational territory that the old exam barely touched, and two domains in particular have been humbling me in the lab: vSAN and what the exam blueprint still calls Aria Operations — recently rebranded VCF Operations, though the old name is still the one showing up in study material and forum threads.
Gap analysis isn't a glamorous exercise, but it's the only honest way to spend limited study hours well. So before I touch another practice question, here's exactly where the blueprint bites, and how I'm using the Explore catalog — live as of this week — to close the distance before the Exam Center opens in Las Vegas.
Knowing your weak domains before you spend a single PTO day at a conference is the difference between wandering the catalog and hunting it.
Where the Exam Actually Bites
vSAN is the one I underestimated. Storage policy-based management sounds simple until you're reasoning through failures-to-tolerate against fault domain layout, deciding when a stretched cluster's witness host placement actually matters, and weighing dedup and compression trade-offs against the workload sitting on top. In the home lab, I can build the policy. On the exam, I have to explain why one policy choice survives a host failure that another one doesn't — and that's a different, harder skill.
The second domain, VCF Operations — Aria Operations under its prior name — is softer for a more human reason: it's the part of the stack I touch least in day-to-day CEA work, where the AD topology and hypervisor layer eat most of my hours. Dashboards, alert and notification policy tuning, capacity and what-if planning, compliance packs — I know the concepts, but I haven't built the reflexes that come from living in the tool weekly.
Hunting the Catalog for the Gap
The four-track filter from my last post narrowed 160 sessions down to a workable list, but narrowing by track isn't the same as narrowing by weakness. This pass is different — I went back into the catalog specifically hunting vSAN and VCF Operations content, cross-referencing against the blueprint domains above rather than just browsing by track.
The Certification Exam Center runs Sunday afternoon through Friday morning in the Lido Ballroom — already favorited, already scheduled to sit 2V0-16.25 while the week's content is still fresh. The plan is straightforward: home lab reps between now and August, catalog sessions targeting these two domains specifically, then the exam before I leave Las Vegas. No extra trip, no waiting for the material to go stale.
The full, prioritized session list — across all four tracks, not just the gap-closing ones covered here — is still Post #6, publishing the day pre-scheduling opens on July 21. This post is narrower on purpose: it's the map of where I'm weak, not the finished schedule. But a finished schedule built without first knowing where the gaps are is just 160 sessions that all sound interesting, which is exactly the trap the candy store analogy was warning about.