I Built a Free Practice Site for the AB-100 Agentic AI Exam

I built AB-100.com while studying for the Microsoft AB-100 Agentic AI exam myself.

It is a free practice site for people preparing for AI solution architect topics around Agentic AI: agents, tool use, planning, memory, orchestration, evaluation, and safety.

Link: https://ab-100.com

Why I Built It

A lot of Agentic AI study material is passive: docs, videos, articles, and explainers.

That helps, but exam prep needs practice. You need to check whether you can reason about agent behavior, architecture choices, and tradeoffs, not just recognize the terms.

The areas I wanted to practice more clearly were:

• agent planning
• tool calling
• memory
• autonomy
• orchestration
• evaluation
• safety and guardrails
• multi-agent workflows
• Microsoft AI solution architecture concepts

So I built a focused practice site around those topics.

What AB-100.com Does

AB-100.com is intentionally simple:

• practice AB-100-style questions
• review Agentic AI concepts
• find weak areas
• get used to exam-style wording
• study without setting up a giant note system

It is free to use and built for focused repetition.

Why I’m Sharing It

AI agents are becoming a real architecture topic, not just a buzzword.

If you work with LLMs, automation, copilots, workflow agents, or multi-agent systems, the same questions keep coming up:

• when should an agent use a tool?
• how should it plan?
• what should it remember?
• how do you evaluate agent behavior?
• what guardrails are needed when systems can act?
• how do you design this as a reliable AI solution?

That is why structured practice helps. It forces you to answer instead of just reading along.

Monetization Note

The site is free.

Some links may be affiliate links. If someone buys through one of those links, I may earn a commission at no extra cost to them.

I’m mentioning that directly because transparency matters, especially when sharing resources in a developer community.

Feedback Welcome

If you are preparing for AB-100, working toward Microsoft AI solution architect skills, or learning Agentic AI, I’d appreciate feedback on:

• missing topics
• unclear questions
• wrong or debatable answers
• UX issues
• explanations that need more detail

I built this because I needed it myself. Hopefully it helps someone else preparing for the same exam.

Link: https://ab-100.com