CEH exam format: domains, weightings and length
CEH is examined across 9 domains. The weightings below decide how much of the exam each domain is worth — and therefore where preparation time pays off.
Domains and weightings
| Domain | Exam weight | Our questions |
|---|---|---|
| Network and Perimeter Hacking | 24% | 81 |
| Reconnaissance Techniques | 17% | 84 |
| System Hacking Phases and Attack Techniques | 15% | 96 |
| Web Application Hacking | 14% | 100 |
| Mobile Platform, IoT, and OT Hacking | 10% | 38 |
| Information Security and Ethical Hacking Overview | 6% | 18 |
| Cryptography | 5% | 35 |
| Cloud Computing | 5% | 27 |
| Wireless Network Hacking | 5% | 19 |
The weightings add up to 101%, not 100% — the vendor publishes ranges and these are the midpoints. We show them as published rather than rounding them up.
Length and number of questions
- Time: 240 minutes
- Questions: 125
- Passing score: no single cut score — what CEH needs to pass →
All 498 CEH practice questions, every option explained →
Know which domain is costing you marks
The weightings tell you what the exam rewards. A readiness check tells you where you stand in each one.
Test your CEH readiness — freeMore on CEH
Domain weightings as published by the exam vendor · Question counts are from the Certsqill CEH bank (498 questions).
