Free study resource
CISSP Study Guide
The entire ISC2 Common Body of Knowledge course, turned into something you can actually read. Every slide, question, flash card and video transcript from all eight domains, organised as lessons you can work through at your own pace.
- Domains
- 8
- Lessons
- 351
- Practice questions
- 500
- Flash cards
- 380
- Video transcripts
- 61
- Reading time
- 12h
The eight domains
The percentage next to each domain is its weight on the exam, so you know where to spend your time.
- 16%
Domain 1
Security and Risk Management
Governance, compliance, risk, ethics and the business context that every other domain sits inside.
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52 lessons · 93 questions
- 10%
Domain 2
Asset Security
Classifying, handling, retaining and destroying information and the assets that hold it.
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22 lessons · 38 questions
- 13%
Domain 3
Security Architecture and Engineering
Secure design principles, cryptography, physical security and the models behind trustworthy systems.
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71 lessons · 91 questions
- 13%
Domain 4
Communication and Network Security
Network models, protocols, topologies and the controls that keep data safe in transit.
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26 lessons · 41 questions
- 13%
Domain 5
Identity and Access Management (IAM)
Proving who someone is, deciding what they may do and removing that access when it is no longer needed.
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26 lessons · 43 questions
- 12%
Domain 6
Security Assessment and Testing
Designing assessments, running tests, collecting evidence and reporting what the results mean.
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37 lessons · 48 questions
- 13%
Domain 7
Security Operations
Day-to-day defence: monitoring, incident response, forensics, recovery and resilience.
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53 lessons · 65 questions
- 10%
Domain 8
Software Development Security
Building security into the SDLC, from requirements and coding standards through to deployment.
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64 lessons · 81 questions
Read the lesson
Every course slide is transcribed into text you can skim, search and copy. The original screenshot is one click away whenever a diagram matters.
Drill the terms
Each domain ships a flash-card deck built from the official glossary cards, with shuffle and a running count of what you already know.
Test yourself
500 practice questions with the full explanation shown after you answer, so a wrong pick teaches you something instead of just costing points.
This guide is a study aid built from ISC2 CISSP course material for learning purposes. CISSP and ISC2 are trademarks of ISC2, Inc. Smart I.T Solutions is not affiliated with ISC2, and this page is not an official ISC2 product.