CertPrepXCISSP exam preparation
Practice for the Certified Information Systems Security Professional (CISSP) exam with adaptive questions, full-length mock exams, and a readiness score that tells you when you're actually ready to pass.
CISSP exam at a glance
CISSP exam domains
The CISSP exam covers 8 domains, with the approximate weighting shown below:
- Security and Risk Management16%
- Asset Security10%
- Security Architecture and Engineering13%
- Communication and Network Security13%
- Identity and Access Management (IAM)13%
- Security Assessment and Testing12%
- Security Operations13%
- Software Development Security10%
How CertPrepX helps you pass the CISSP
- Adaptive practice that focuses on your weakest CISSP domains.
- Full-length, timed mock exams that mirror the real CISSP format and scoring.
- A readiness score per domain, so you know when you're ready to sit the exam.
- Weak-area review and spaced repetition to lock in what you miss.
- A personalized study plan built around your target CISSP exam date.
Who the CISSP is for
Experienced security practitioners, managers, and executives — security analysts, architects, engineers, and CISOs pursuing the ISC2 flagship credential.
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Start free practiceCISSP exam FAQ
How is the CISSP exam scored?
The English CISSP is a Computerized Adaptive Test (CAT) of 100–150 items in 3 hours, scored 0–1000 with a passing score of 700.
How many domains does the CISSP cover?
The CISSP Common Body of Knowledge has eight domains, from Security and Risk Management to Software Development Security.
What is CAT on the CISSP?
Computerized Adaptive Testing adjusts question difficulty based on your answers; the algorithm needs a minimum of about 125 items to assess competency across all eight domains.
Can CertPrepX mock exams mirror the CISSP CAT?
CertPrepX builds full-length, domain-weighted mock exams and a readiness score across all eight CISSP domains so you can train under realistic conditions.