PCA Tests Meeting Every Stated Requirement at Least Operational Cost — Not the Most Powerful Service
For architects who translate business goals into Google Cloud designs, migrations and operating models. The shift: tally every business and technical constraint, including people and process, then pick the simplest managed design that satisfies all of them.
Check Your Readiness →Most candidates understand Google Cloud Professional Cloud Architect concepts — and still fail. This exam tests how you apply knowledge under pressure.
Each exam draws two of four current case studies (Altostrat Media, Cymbal Retail, EHR Healthcare, KnightMotives Automotive) for 20–30% of questions. Several options usually work; the winner meets every constraint with the least administration. The guide uses Gemini Enterprise Agent Platform names, formerly Vertex AI.
Refactor into microservices on Spanner before migrating
Use Database Migration Service into Cloud SQL for MySQL: continuous replication keeps cutover short, the engine stays the same, and administration drops. A rewrite cannot meet the deadline; modernise after the move.
Several HA VPN tunnels over the internet
Dedicated Interconnect in the 99.99% topology: redundant connections in two metros and regions with Cloud Router and global routing. VPN tunnels have per-tunnel bandwidth limits; Partner Interconnect suits sites without colocation presence.
Store a service account key in the CI tool and scan images
Workload Identity Federation issues short-lived tokens to the external pipeline, and Binary Authorization admits only images attested by the build system. Scanning detects issues but enforces nothing.
Expose the claims APIs behind an external load balancer
Apigee provides API keys, quotas, analytics and a developer portal for partner onboarding. A load balancer offers none of these, and API Gateway is simpler and cheaper but lacks portals and advanced policies.
Restrict console access and ask staff to be careful
Move changes into infrastructure as code with Terraform through a reviewed CI/CD chain (Cloud Build, Artifact Registry, Cloud Deploy) with canary releases, and run blameless postmortems with tracked preventive actions.
The current set is Altostrat Media, Cymbal Retail, EHR Healthcare and KnightMotives Automotive. Read each for business constraints such as cost reduction, limited staff skills or missed email alerts, because those decide answers that look purely technical.
Low RPO needs replication; low RTO needs warm or hot standby. Tier workloads instead of making everything active-active, and schedule DR exercises, because a documented but untested plan proves neither target.
Spanner earns its cost for global, horizontally scaled, strongly consistent transactions. A regional catalogue or app with modest load fits Cloud SQL, or AlloyDB for faster PostgreSQL. Look for worldwide writes before selecting it.
Versions can still be deleted. A retention policy locked with Bucket Lock cannot be removed or shortened. Pair it with lifecycle rules for class changes, checking minimum durations: Nearline 30, Coldline 90, Archive 365 days.
Users who may legitimately read data can still copy it to another project. A VPC Service Controls perimeter blocks that path, organization policy location constraints enforce residency, and Data Access audit logs must be enabled explicitly.
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See whether your architecture choices satisfy every constraint the way Professional Cloud Architect scenarios demand.