Microsoft lessons, paired with the Ops work that produces them.

• 2026-10-01AZ-900 — Service Bus, Event Hubs, and Storage Queues: the three messaging shapes
• 2026-09-19AZ-900 — Virtual Networks, NSGs, peering, and VPN connectivity
• 2026-09-04AZ-900 — Storage Redundancy, Access Tiers, and the Copy That Is Not a Backup
• 2026-08-23AZ-900 — Entra ID, AuthN versus AuthZ, Conditional Access, and the Credential That Is Not a Key · Hedronite Lesson
• 2026-08-11AZ-900 — The Azure Resource Hierarchy and the Governance Spine · Hedronite Lesson