Twenty certification lanes
A shared chooser routes learners into twenty first-class AWS and Microsoft certification study experiences.
Exam PrepLive
GregLab Exam Prep
Certification study across twenty AWS and Microsoft exam lanes.
A free exam-preparation site with twenty certification lanes across AWS and Microsoft, more than 2,900 original practice questions, anonymous study progress, and optional cross-device history.
- Certification lanes
- 20 across AWS and Microsoft
- Practice library
- More than 2,900 original questions
- Access
- Anonymous or Google sign-in
- Legacy host
- 301 to examprep.greglab.net
What it is
GregLab Exam Prep opens with a marketing and lane-chooser home page, then gives each certification its own study home, topic library, references, practice questions, and readiness context.
The seven AWS lanes cover AWS Certified AI Practitioner (AIF-C01), AWS Certified Cloud Practitioner (CLF-C02), AWS Certified Solutions Architect - Associate (SAA-C03), AWS Certified Developer - Associate (DVA-C02), AWS Certified CloudOps Engineer - Associate (SOA-C03), AWS Certified Data Engineer - Associate (DEA-C01), and AWS Certified Generative AI Developer - Professional (AIP-C01).
The thirteen Microsoft lanes cover Microsoft 365 Copilot and Agent Administration Fundamentals (AB-900), Microsoft Certified: AI Business Professional (AB-730), Microsoft Certified: AI Agent Builder Associate (AB-620), Microsoft Certified: Azure Fundamentals (AZ-900), Microsoft Certified: Azure Administrator Associate (AZ-104), Microsoft Certified: Azure Solutions Architect Expert (AZ-305), Microsoft Certified: DevOps Engineer Expert (AZ-400), Microsoft Certified: Security, Compliance, and Identity Fundamentals (SC-900), Microsoft Certified: Security Operations Analyst Associate (SC-200), Microsoft Certified: Cloud and AI Security Engineer Associate (SC-500), Microsoft Certified: Cybersecurity Architect Expert (SC-100), Microsoft Certified: Machine Learning Operations Engineer Associate (AI-300), and Microsoft Certified: Azure AI Apps and Agents Developer Associate (AI-103).
Lane pages use durable paths such as /aif-c01/, with individual topics at /aif-c01/topic/<slug>. Learners can change their selected lane from the profile page without mixing content or progress between certifications.
Anonymous study keeps local progress available without an account. Optional Google sign-in can preserve quiz history across devices, while PostgreSQL stores the associated study events.
The production site moved to examprep.greglab.net on August 14, 2026. The former aif-c01.greglab.net host permanently redirects to the new host while preserving paths.
Highlights
- ●Twenty certification lanes across AWS and Microsoft
- ●Per-lane topics, references, and more than 2,900 original practice questions
- ●Anonymous progress with optional Google sign-in
Captured features
Inside the project
Capabilities
Key features
Per-lane study libraries
Each certification keeps its topics, reference pages, practice questions, and progress within the selected exam context.
Original practice questions
More than 2,900 original practice questions, with shuffled answer options, provide focused practice and answer feedback across the twenty lanes.
Anonymous or signed in
Learners can begin without an account or use optional Google sign-in to keep progress across devices.
Stable study routes
Lane homes and topic pages use exam-scoped URLs that can be linked directly and navigated independently.
Legacy-domain continuity
Requests to the former AIF-C01 host permanently redirect to GregLab Exam Prep with their paths preserved.
Under the hood
How it works
- 1Express serves the marketing chooser, exam-scoped lane and topic routes, and JSON APIs for study content, questions, progress, and identity.
- 2Vanilla JavaScript keeps lane navigation responsive while stable server routes make individual topics directly addressable.
- 3PostgreSQL stores study events, with separate identity handling for anonymous learners and optional Google sign-in.
- 4Railway runs the service at examprep.greglab.net and permanently redirects the former AIF-C01 host to the corresponding new path.
Recent changes
Full changelog →- Staging Improver update
AZ-305: fixed longest-answer giveaways on 16 multiple-choice questions. Open (opens in a new tab)
Removed longest-answer giveaways
Rebalanced answer lengths across AB-730, DVA-C02, SC-200, SC-900, and SOA-C03 so the correct option no longer stands out.
Expanded AIF-C01
Added Domain 2 questions, an Agentic AI Concepts topic, and an infrastructure cost topic.