Data Engineering Foundations

The blueprint, the service map, and the pipeline vocabulary the exam assumes — on-ramp

• The DEA-C01 Exam: Blueprint, Logistics, Strategy — What the exam is actually testing and how it is built: the four content domains and what each one weighs, the kinds of judgement an associate-level data engineering question rewards, and the 50-scored-of-65 question split that changes how you pace yourself. (3 lessons, 40 min)
• The Data Service Map — The whole in-scope estate laid out as one pipeline so later lessons have somewhere to land: what ingests, what transforms, what stores, what catalogs, what queries, what orchestrates, and what governs — and the handful of services that appear in all four domains. (4 lessons, 45 min)
• Walk In Ready — The capstone: reading a question for the constraint that actually decides it, the keyword reflexes that map a stem to a service, the traps that sink competent engineers, and a final-week plan that ends with the full mock. (4 lessons, 50 min)