200 free scenario-based questions across all 8 CISSP domains. Learn the mindset — not just the knowledge — that it takes to pass. Built by a certified cybersecurity professional.
Free CISSP Practice Questions and Answers
Domain-by-domain study guide with 16 realistic practice questions, expert exam tips, and detailed explanations to help you pass the CISSP in 2026.
Why Free CISSP Practice Questions Matter for Exam Success
The Certified Information Systems Security Professional (CISSP) certification from ISC2 is widely regarded as the gold standard in information security. Earning it validates your deep technical and managerial knowledge across eight critical security domains and opens doors to senior-level roles in cybersecurity. However, the exam is notoriously challenging. It uses Computerized Adaptive Testing (CAT), presents 100 to 150 questions including both multiple choice and advanced innovative item types, and requires you to demonstrate mastery—not just memorization.
That is exactly why practicing with realistic questions is one of the most effective study strategies you can use. Free CISSP practice questions help you identify weak areas, get comfortable with how the exam frames scenarios, and build the confidence needed to sit for a three-hour adaptive test. In this comprehensive guide, you will find practice questions and answers for every CISSP domain, along with expert study tips to help you pass on your first attempt.
It is worth noting that CISSP was the first credential in information security to meet the stringent requirements of the ANSI National Accreditation Board (ANAB) ISO/IEC Standard 17024. ISC2 maintains exam relevancy through a regular Job Task Analysis (JTA) process, which updates the exam outline to reflect the tasks actually performed by today’s practicing security professionals. The current exam covers eight domains, uses a CAT format with 100 to 150 items, and must be completed within three hours. The questions below align with the current exam outline and domain weights.
Domain 1: Security and Risk Management – CISSP Practice Questions
Domain 1 of 8~16% of Exam
Domain 1 is the foundation of the entire CISSP exam. It covers governance, compliance, legal and regulatory issues, risk management frameworks, business continuity planning, and professional ethics. If you only have time to master one domain, this should be it.
Practice Questions for Security and Risk Management
Question 1
An organization wants to determine the annual expected loss from server failures. The asset value is $200,000, the exposure factor is 40%, and the annualized rate of occurrence is 0.5. What is the Annualized Loss Expectancy (ALE)?
A) $80,000
B) $40,000
C) $100,000
D) $20,000
✓Correct Answer: B) $40,000
Explanation: ALE = SLE × ARO. The SLE (Single Loss Expectancy) = Asset Value × Exposure Factor = $200,000 × 0.40 = $80,000. Then ALE = $80,000 × 0.5 = $40,000.
Question 2
Which risk response strategy involves sharing the financial burden of a risk with a third party, such as purchasing an insurance policy?
A) Risk avoidance
B) Risk mitigation
C) Risk transference
D) Risk acceptance
✓Correct Answer: C) Risk transference
Explanation: Risk transference shifts the financial impact of a risk to another party. Insurance is the most common example. This does not eliminate the risk itself—it transfers the financial consequences.
💡 Exam Tip
The CISSP exam loves scenario-based risk questions. Master the quantitative risk formulas (ALE, SLE, ARO, EF) and understand qualitative risk analysis methods like the Delphi technique and risk matrices. You need both for exam day.
Domain 2: Asset Security – CISSP Practice Questions
Domain 2 of 8~10% of Exam
Domain 2 focuses on protecting organizational assets throughout their lifecycle, including data classification, ownership roles, privacy protection, retention policies, and secure handling of information.
Practice Questions for Asset Security
Question 3
In a data classification scheme, who is ultimately responsible for determining the classification level of information?
A) The data custodian
B) The data owner
C) The security administrator
D) The end user
✓Correct Answer: B) The data owner
Explanation: The data owner (typically a senior manager or executive) is responsible for classifying data, defining access policies, and approving access requests. The custodian implements the controls, but the owner makes the classification decision.
Question 4
Which data sanitization method is most appropriate for ensuring data on a magnetic hard drive cannot be recovered, even by advanced forensic tools?
A) Clearing
B) Formatting
C) Degaussing
D) Deleting
✓Correct Answer: C) Degaussing
Explanation: Degaussing uses a powerful magnetic field to erase data on magnetic media, rendering the drive unusable and the data unrecoverable. For SSDs, physical destruction or cryptographic erasure is preferred since degaussing does not work on flash storage.
💡 Exam Tip
Remember the distinction between clearing, purging, and destroying as defined in NIST SP 800-88. The exam will test whether you know which method is appropriate for different media types and data sensitivity levels.
Domain 3: Security Architecture and Engineering – CISSP Practice Questions
Domain 3 of 8~13% of Exam
Domain 3 covers the design and implementation of secure architectures. It spans security models (Bell-LaPadula, Biba, Clark-Wilson), cryptographic concepts, secure design principles, and physical security. This is one of the broadest domains on the exam.
Practice Questions for Security Architecture and Engineering
Question 5
The Bell-LaPadula model enforces which of the following properties to protect data confidentiality?
A) Simple integrity and star integrity
B) No read up and no write down
C) Separation of duties and least privilege
D) Need to know and compartmentalization
✓Correct Answer: B) No read up and no write down
Explanation: Bell-LaPadula is a confidentiality-focused model. The Simple Security Property (no read up) prevents subjects from reading objects at a higher classification. The Star Property (no write down) prevents writing to lower classification levels, stopping data from leaking downward.
Question 6
An architect is designing a system that must ensure data is never improperly modified. Which security model should be the primary reference?
A) Bell-LaPadula
B) Biba
C) Brewer-Nash
D) Harrison-Ruzzo-Ullman
✓Correct Answer: B) Biba
Explanation: The Biba model is the integrity counterpart to Bell-LaPadula. It enforces “no read down” (Simple Integrity) and “no write up” (Star Integrity) to prevent data corruption from less trusted sources.
💡 Exam Tip
When you see a question about confidentiality models, think Bell-LaPadula. When you see integrity, think Biba. Mnemonic: BIBA = Bad Integrity Brings Accidents. BLP = “Be Lips Sealed” (confidentiality).
Domain 4: Communication and Network Security – CISSP Practice Questions
Domain 4 of 8~13% of Exam
Domain 4 dives into secure network architecture, communication channels, and network attack mitigation. Topics include the OSI and TCP/IP models, VPNs, firewalls, wireless security, and network protocols.
Practice Questions for Communication and Network Security
Question 7
At which layer of the OSI model does a stateful inspection firewall primarily operate?
A) Layer 2 – Data Link
B) Layer 3 – Network
C) Layer 4 – Transport
D) Layer 7 – Application
✓Correct Answer: C) Layer 4 – Transport
Explanation: Stateful inspection firewalls track the state of network connections at the transport layer (Layer 4). They monitor TCP handshakes and session states, making decisions based on the context of the full connection rather than individual packets.
Question 8
Which protocol provides both confidentiality and integrity for data in transit by operating at the network layer?
A) SSL
B) TLS
C) IPSec
D) SSH
✓Correct Answer: C) IPSec
Explanation: IPSec operates at Layer 3 (Network) and provides confidentiality through ESP (Encapsulating Security Payload) and integrity through AH (Authentication Header) or ESP. SSL/TLS work at higher layers, and SSH operates at the application layer.
💡 Exam Tip
Know the OSI model cold. The exam regularly tests your ability to map protocols, attacks, and security controls to specific OSI layers. Create a quick-reference chart during your study sessions and review it daily.
Domain 5: Identity and Access Management (IAM) – CISSP Practice Questions
Domain 5 of 8~13% of Exam
Domain 5 focuses on controlling access to information assets. This includes authentication methods, access control models (MAC, DAC, RBAC, ABAC), identity management lifecycle, single sign-on, and federated identity.
Practice Questions for Identity and Access Management
Question 9
An organization requires that access to classified documents be determined by security labels assigned by a central authority, and users cannot change these permissions. Which access control model is in use?
A) Discretionary Access Control (DAC)
B) Mandatory Access Control (MAC)
C) Role-Based Access Control (RBAC)
D) Rule-Based Access Control
✓Correct Answer: B) Mandatory Access Control (MAC)
Explanation: MAC uses security labels and clearance levels controlled by a central authority. Users cannot modify access permissions—only the system and administrators can. This is commonly used in military and government environments.
Question 10
A user authenticates once and gains access to multiple applications without re-entering credentials. What is this mechanism called?
A) Multi-factor authentication
B) Federated identity management
C) Single sign-on (SSO)
D) Kerberos ticketing
✓Correct Answer: C) Single sign-on (SSO)
Explanation: SSO allows users to authenticate once and access multiple systems. While Kerberos is a protocol that can enable SSO, the broader concept described here is single sign-on. Federated identity specifically refers to cross-organization trust.
💡 Exam Tip
The exam tests the difference between identification, authentication, authorization, and accountability. Make sure you understand all four concepts and can identify which phase a scenario is describing.
Domain 6: Security Assessment and Testing – CISSP Practice Questions
Domain 6 of 8~12% of Exam
Domain 6 addresses how organizations validate the effectiveness of their security controls through vulnerability assessments, penetration testing, audits, and log reviews.
Practice Questions for Security Assessment and Testing
Question 11
During a penetration test, the tester has no prior knowledge of the target environment. What type of test is being performed?
A) White box
B) Gray box
C) Black box
D) Crystal box
✓Correct Answer: C) Black box
Explanation: In a black box test, the tester simulates a real-world external attacker with no insider knowledge. White box (crystal box) provides full knowledge, and gray box provides partial knowledge of the target.
Question 12
What is the primary purpose of a vulnerability assessment compared to a penetration test?
A) To exploit weaknesses and gain unauthorized access
B) To identify, quantify, and prioritize vulnerabilities
C) To test incident response procedures
D) To verify compliance with regulations
✓Correct Answer: B) To identify, quantify, and prioritize vulnerabilities
Explanation: A vulnerability assessment identifies and ranks weaknesses but does not actively exploit them. A penetration test goes further by attempting exploitation. Understanding this distinction is critical for the exam.
💡 Exam Tip
Know the difference between vulnerability scans, vulnerability assessments, and penetration tests. The exam frequently presents scenarios where you must choose the correct assessment type based on the organization’s goals and risk tolerance.
Domain 7: Security Operations – CISSP Practice Questions
Domain 7 of 8~13% of Exam
Domain 7 is one of the largest domains, covering incident management, disaster recovery, business continuity, logging and monitoring, change management, and digital forensic investigations.
Practice Questions for Security Operations
Question 13
According to the NIST incident response lifecycle (SP 800-61), what is the correct order of incident response phases?
A) Detection, Containment, Preparation, Recovery
B) Preparation, Detection and Analysis, Containment/Eradication/Recovery, Post-Incident Activity
C) Identification, Containment, Eradication, Recovery, Lessons Learned
D) Planning, Response, Mitigation, Reporting
✓Correct Answer: B) Preparation, Detection and Analysis, Containment/Eradication/Recovery, Post-Incident Activity
Explanation: NIST SP 800-61 defines four phases: (1) Preparation, (2) Detection and Analysis, (3) Containment, Eradication, and Recovery, and (4) Post-Incident Activity. Option C describes the SANS model, which is a common exam distractor.
Question 14
A forensic investigator needs to examine a suspect’s hard drive. What must be done first to ensure evidence integrity?
A) Run antivirus on the drive
B) Create a forensic bit-for-bit image
C) Search the drive for incriminating files
D) Encrypt the drive contents
✓Correct Answer: B) Create a forensic bit-for-bit image
Explanation: The first step in digital forensics is to preserve evidence by creating an exact bit-for-bit copy (forensic image) and generating a hash to verify integrity. All analysis should be performed on the copy, never the original.
💡 Exam Tip
The CISSP exam tests the NIST incident response model (SP 800-61), not the SANS model. Know the four NIST phases and be ready to distinguish them. Also remember: evidence preservation always comes before analysis.
Domain 8: Software Development Security – CISSP Practice Questions
Domain 8 of 8~10% of Exam
Domain 8 addresses security in the software development lifecycle (SDLC), including secure coding practices, application vulnerabilities, database security, and software testing methodologies.
Practice Questions for Software Development Security
Question 15
An attacker injects malicious SQL code into a web application’s input field to manipulate the backend database. What type of attack is this?
A) Cross-Site Scripting (XSS)
B) SQL injection
C) Buffer overflow
D) Cross-Site Request Forgery (CSRF)
✓Correct Answer: B) SQL injection
Explanation: SQL injection occurs when an attacker inserts malicious SQL statements into input fields that are passed directly to a database query. The primary defense is input validation and the use of parameterized queries or prepared statements.
Question 16
In the Software Development Lifecycle, at which phase should security requirements first be defined?
A) Testing
B) Development/coding
C) Requirements gathering
D) Deployment
✓Correct Answer: C) Requirements gathering
Explanation: Security should be integrated from the very beginning of the SDLC. Defining security requirements during the requirements phase ensures that controls are designed into the system rather than bolted on as an afterthought.
💡 Exam Tip
For software security questions, remember the mantra “shift left.” Security should be addressed as early as possible in the SDLC. Also know the OWASP Top 10 web application vulnerabilities—they are heavily referenced in this domain.
How to Use These Free CISSP Practice Questions Effectively
Simply reading through practice questions is not enough. To maximize your study time and improve your chances of passing, follow these proven strategies:
1
Simulate real exam conditions. Set a timer and work through questions without referencing study materials. The CISSP CAT format gives you a maximum of three hours, so building endurance and time management skills is essential.
2
Review every explanation—even for correct answers. Understanding why an answer is correct and why the other options are wrong deepens your knowledge. The CISSP tests understanding, not just recall.
3
Track your weak domains. Keep a log of which domains you miss questions in most frequently. Allocate extra study time to those areas rather than reviewing material you already know well.
4
Think like a manager, not a technician. The CISSP is often described as a “mile wide and an inch deep” exam. Many questions require you to choose the BEST answer from a management or risk-based perspective, not the most technically impressive one.
5
Use multiple question sources. Free practice questions like these are a great starting point, but supplement them with official ISC2 practice exams, study guides, and community question banks to ensure broad domain coverage.
Frequently Asked Questions About the CISSP Exam
How many questions are on the CISSP exam?
The CISSP uses Computerized Adaptive Testing (CAT) for all exams. You will answer between 100 and 150 questions within a three-hour time limit. The exam includes both multiple choice and advanced innovative item types. The test adapts in difficulty based on your responses, and may end at 100 questions if the algorithm determines your competence level with statistical confidence.
What is the passing score for the CISSP exam?
You need a scaled score of 700 out of 1,000 to pass. Because the exam is adaptive, there is no simple percentage—the scoring algorithm evaluates whether you consistently perform above the competence threshold across all eight domains.
How much work experience do I need for the CISSP?
ISC2 requires five years of cumulative, full-time experience in two or more of the eight CISSP domains. Earning a post-secondary degree (bachelors or masters) in computer science, IT, or related fields may satisfy up to one year of the requirement. An additional credential from the ISC2 approved list may also satisfy up to one year, but only one year of experience total can be waived. Part-time work and internships may also count toward the requirement. If you pass the exam without the required experience, you can become an Associate of ISC2 and earn the experience over the following six years.
Are free CISSP practice questions enough to pass the exam?
Free practice questions are an excellent supplement but should not be your only study resource. Combine them with an official study guide (such as the ISC2 Official Study Guide), video courses, domain-specific deep dives, and timed practice exams. The goal is to understand concepts deeply enough to apply them to novel scenarios.
What is the best way to study for the CISSP exam?
The most effective approach combines reading a comprehensive study guide, practicing with hundreds of questions across all domains, joining a study group or community, and scheduling regular review sessions. Focus on understanding concepts and frameworks rather than memorizing facts. Many successful candidates recommend studying for 3 to 6 months and taking practice tests weekly to track progress.
How long is the CISSP certification valid?
The CISSP certification is valid for three years. To maintain it, you must earn 120 Continuing Professional Education (CPE) credits over the three-year cycle (with a minimum of 40 credits per year) and pay the annual maintenance fee of $125 USD.
What is the CISSP endorsement process?
After passing the CISSP exam, you must be endorsed by an active ISC2-certified professional within nine months. Your endorser attests to your professional experience. If you do not know an ISC2 member personally, ISC2 can act as your endorser. You submit the endorsement application through your ISC2 online account.
What languages is the CISSP exam available in, and where can I take it?
The CISSP exam is available in Chinese, English, German, Japanese, and Spanish. You can take it at ISC2 Authorized PPC and PVTC Select Pearson VUE Testing Centers worldwide. Note that Chinese language exams are only available during select appointment windows: March, June, September, and December of each year.
Which CISSP domain is the hardest?
This varies by background, but many candidates find Domain 3 (Security Architecture and Engineering) the most challenging due to its breadth—it covers security models, cryptography, and physical security. Candidates with strong networking backgrounds may also struggle with Domain 1 (Security and Risk Management) due to its heavy emphasis on governance, legal, and compliance topics. Focus your study time on whichever domains feel least familiar.
