Newton Rocha

Moving to the cloud is not the same as being resilient # Picture a classic migration: a handful of VMs running on on-premises VMware are moving to AWS. The work looks straightforward. Rebuild the servers as EC2 instances, set up the VPC, subnets, storage and firewall rules, validate connectivity, and the application is “in the cloud.”

What this is about # Learning cloud and DevOps has a cost problem. The tools are paid, the infrastructure bills by the hour, and the good courses sit behind subscriptions. Plenty of people learn the concepts and never get to use the professional tooling that goes with them.

What this is # This wraps up the Becoming a Claude Architect series with a self-check: 100 practice questions, 20 per domain, covering everything from Domain 1 — Agentic Architecture & Orchestration through Domain 5 — Context Management & Reliability. Click an answer and you’ll see immediately whether it’s right, with a short explanation either way.

What this is about # Domain 5 — Context Management & Reliability — is the lightest domain on the Claude Certified Architect – Foundations exam at 15%, but its six task areas cover what decides whether a long-running agent stays trustworthy: preserving critical facts across long interactions, knowing when to escalate, letting a multi-agent system recover from failure instead of silently degrading, managing context at scale, and calibrating how much to trust the output.

What this is about # Domain 4 — Prompt Engineering & Structured Output — ties Claude Code Configuration & Workflows for second-heaviest domain on the Claude Certified Architect – Foundations exam, at 20%. Its six task areas move from how you write a prompt to how you guarantee what comes back is actually usable: explicit criteria, few-shot examples, schema-enforced output, validation loops, multi-instance review, and batch processing for scale.

What this is about # Domain 3 — Claude Code Configuration & Workflows — ties Prompt Engineering & Structured Output for second-heaviest domain on the Claude Certified Architect – Foundations exam, at 20%. Its six task areas are all about how you set up and drive Claude Code itself: configuration file hierarchy, custom commands and skills, conditional rules, choosing plan mode vs. diving straight in, iterating well, and wiring Claude Code into CI/CD.