How difficult is the CISSP exam?
First, a clarification that changes the answer: there is no single exam called "CISSP Azure Fundamentals." The name blends two different certifications — Microsoft Azure Fundamentals (exam AZ-900), an entry-level cloud exam, and ISC2's CISSP, an advanced security certification for experienced professionals. Their difficulty is not remotely comparable. AZ-900 is a beginner exam that most candidates prepare for in a matter of weeks. The CISSP is widely regarded as one of the most demanding credentials in the security industry. So the honest answer is: it depends entirely on which of the two you mean.
Azure Fundamentals (AZ-900): The Easier Exam
AZ-900 tests whether you understand cloud concepts and can recognize what the core Azure services do. A typical sitting has around 40–60 multiple-choice questions, the pass mark is 700 out of 1,000, and there are no prerequisites and no experience requirement. The material is broad but shallow: you need to know the difference between infrastructure, platform, and software as a service (IaaS, PaaS, SaaS), what the shared responsibility model means, and which Azure service fits a described need — not how to architect or secure a production environment. For someone already working in IT, this is a gentle introduction to cloud vocabulary. For a complete newcomer, the main challenge is simply the number of service names to recognize.
CISSP: A Different League
The CISSP examines eight domains of security management, and it is demanding in three separate ways. First, the format: in English it is a computerized adaptive test of 100–150 questions in up to three hours, with a pass mark of 700 out of 1,000 scaled points, and you cannot go back and change earlier answers. Second, the eligibility bar: before ISC2 will certify you, you must document five years of paid security work experience across at least two of the eight domains (four years if you hold a qualifying degree), and pass an endorsement process after the exam. Third, the style of thinking: questions present scenarios and ask for the BEST or MOST appropriate decision, testing managerial judgment — risk treatment, least privilege, separation of duties — rather than configuration recall. Candidates typically prepare for months, and the experience requirement exists precisely because the exam assumes judgment that study alone does not give you.
Side by Side
- Level: AZ-900 is foundational; CISSP is advanced and aimed at security leaders.
- Experience required: none for AZ-900; five years of verified security work for CISSP.
- What it tests: AZ-900 asks what cloud services are; CISSP asks what a security manager should decide.
- Typical preparation: weeks for AZ-900; months for CISSP, on top of the required experience.
- Relationship: neither is a prerequisite for the other, though cloud literacy genuinely helps in CISSP's architecture and engineering domain.
Feel the Difference: Example Questions
1. (AZ-900 style) A company wants to run its own operating systems and applications in the cloud while renting the underlying hardware. Which service model fits?
- A. Software as a Service
- B. Platform as a Service
- C. Infrastructure as a Service
- D. Serverless computing
2. (AZ-900 style) Under the shared responsibility model, which task is always the customer's responsibility, regardless of service model?
- A. Maintaining the physical data center
- B. Protecting information and data
- C. Patching the host operating system
- D. Replacing failed hardware
3. (CISSP style) A security manager recommends purchasing cyber insurance to offset the financial impact of a potential breach. Which risk treatment does this represent?
- A. Avoidance
- B. Mitigation
- C. Transference
- D. Acceptance
4. (CISSP style) An audit finds that support staff can both request and approve their own privileged access. Which principle is MOST directly violated?
- A. Least privilege
- B. Separation of duties
- C. Defense in depth
- D. Fail secure
Answer Key
- 1. C — IaaS rents the infrastructure while the customer keeps control of the operating system and applications.
- 2. B — Data and information are always the customer's responsibility; hardware and facilities sit with the provider.
- 3. C — Insurance transfers the financial consequence of the risk to a third party.
- 4. B — Separation of duties prevents one person from both requesting and approving the same sensitive action.
The Bottom Line
If you are starting a cloud career, AZ-900 is a realistic first step and its difficulty should not scare you. If your goal is the CISSP, plan for a long campaign of study built on real experience — and start by testing where you stand with the CISSP practice test and study material on Study4Pass.
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