Know the floor before you walk it.

Structured training for every data center role — built by operators, not a textbook company.

Learn by doing, not just reading

Every section includes hands-on interactives that let you explore concepts the way they work on the floor.

Sample Interactive — Module 1

Redundancy Model Visualizer

Click units to simulate failures. See how N, N+1, 2N, and 2(N+1) architectures respond.

ActiveUnit 1ActiveUnit 2ActiveUnit 3ActiveUnit 4SpareUnit 5
5/5
Units Active
4
Units Needed
One spare unit. Can lose one unit and maintain full capacity.

Click units to simulate failures. See how each model handles them.

How It Works

Three steps to interview ready

1

Create a free account

Sign up in seconds. Module 1 is completely free — no credit card required.

2

Study the modules

Work through structured lessons covering electrical, mechanical, fire, telecom, and safety systems.

3

Test & track progress

Take randomized practice tests, review results, and get personalized study recommendations.

Smart Study Tools

Know exactly what to study next

Randomized tests and intelligent recommendations pinpoint your weak spots so you don’t waste time on what you already know.

Randomized Practice Tests

Every test pulls a fresh set of questions so you never just memorize the order.

Section-Level Breakdown

See exactly which sections you’re strong in and which need more work.

Confidence Tracking

Flag whether you’re guessing, unsure, or confident — surface blind spots fast.

Study Recommendations

Automatically ranked list of your weakest topics with direct links to the content.

Questions

Everything you need to know

What roles does this prepare me for?

Each course targets a specific career path. Critical Infrastructure covers CFT, CFE, EOT, CET, and Data Center Technician roles. IT Hardware Technician covers rack & stack, remote hands, and hardware tech positions. Every course is built around what hiring managers actually ask in interviews.

Do I need prior experience?

No. Every course starts from the ground up and assumes no prior data center experience.

What’s free?

All courses, all lessons, and every interactive tool. You also get one free 20-question practice test per account so you can see how the testing works before subscribing.

What does the subscription include?

Unlimited practice tests across every course, section-level score breakdowns, smart study recommendations, and progress history. $5/mo or $20/yr — cancel anytime.

Two live courses

Specialized tracks for the role you’re after

Every course is free for every logged-in user — every lesson, every interactive, every module.

Available

Critical Infrastructure

CFT · CFE · EOT · CET · Data Center Technician

7 modules · 44 sections covering the facility side of the data center — electrical distribution, mechanical cooling, fire detection and suppression, telecom pathways, safety, and monitoring.

  • Power, cooling, and redundancy models
  • Fire, safety, and emergency procedures
  • Telecom, pathways, and grounding
  • 4,000+ practice questions
Start free
Available

IT Hardware Technician

IT Technician · Hardware Tech · Rack & Stack

8 modules · 43 sections covering the IT side of the hall — servers, networking, storage, structured cabling, racks, remote hands workflows, and hardware troubleshooting.

  • Servers, networking, and storage
  • Racks, cabling, and labeling standards
  • Remote hands and ticket workflows
  • 4,000+ practice questions
Start free

“Built by operators, not a textbook company.”