CompTIA CySA+ (CS0-004) practice exam: 700 questions on the V4 objectives, including AI in security operations. 40 free CS0-004 practice exam questions.
700 practice questions for the CompTIA Cybersecurity Analyst exam, written to the CS0-004 V4 objectives that launched in June 2026. Every question carries an explanation of the reasoning, and 40 are free.This CS0-004 practice exam is 700 questions written to the CompTIA CySA+ V4 objectives, the version that went live on 23 June 2026. CySA+ is the analyst certification: the one that assumes you are already inside a security team and asks what you do with the alert in front of you. V4 replaces CS0-003, which CompTIA stops offering in English on 22 December 2026, so anyone booking now is choosing between two live versions of the same credential and wants to know which one they are practicing against. The 700 questions are allocated across all four domains using CompTIA's own published weightings rather than an even split, so the amount of practice you get in each area matches the amount of the real paper it accounts for.
CompTIA publishes a weighting for each of the four V4 domains. Every question here belongs to one of them, and the pool is built to those proportions rather than to whichever topic was easiest to write.
| Domain | Weighting | Questions |
| 1.0 Security Operations | 34% | 238 |
| 2.0 Vulnerability Management | 26% | 182 |
| 3.0 Incident Response and Management | 24% | 168 |
| 4.0 Reporting and Communication | 16% | 112 |
System and network architecture as an analyst has to reason about it: log ingestion, time synchronization, operating system internals, virtualization and containers, segmentation, zero trust, SASE and identity. Then the part the job is actually made of - reading indicators of malicious activity on the network, on the host and in the application, and using the tools that surface them, from packet capture and SIEM correlation through endpoint telemetry, sandboxing and reputation data. Threat intelligence and threat hunting sit here too, along with the V4 addition on the use of AI in security operations, which has no equivalent anywhere in CS0-003. Thirty questions are on that objective alone.
Choosing the scanning method that answers the question you actually have, and knowing what each one cannot see. Reading the output: CVE and CVSS, what the base metrics mean and why a score is not a priority, weakness classes from injection and traversal through deserialization and race conditions, and the difference between a false positive and a false negative that nobody reported. Then prioritization and mitigation, where exploitability and asset value decide the queue, and the control types and frameworks the whole activity sits inside.
The attack methodology frameworks an analyst reasons with, and what each is good for. The response process end to end, from the preparation that has to exist beforehand through detection, scoping, severity and the post-incident review. And the techniques applied during one: containment against eradication, when a machine is rebuilt rather than cleaned, order of volatility, chain of custody, imaging and hashing, legal hold, and how a recovery is validated before the system goes back.
The domain that decides whether any of the rest of it changes anything. What belongs in a vulnerability report and what an executive needs from it that an engineer does not. The inhibitors that stop a fix being applied when the fix exists. Metrics that show whether the program is improving rather than how busy it was. Then incident reporting - notification, escalation, working with legal, external communication, and the timeline that every question asked afterward turns out to be about.
Security+ asks what a control is. CySA+ asks what you do at eleven at night when an alert fires and the answer is not in the alert. The distinction runs through every domain: you are not asked to define beaconing, you are asked what a regular outbound connection to one destination means when the destination has a clean reputation and the traffic is encrypted. Candidates who prepare by memorizing definitions find the definitions were the easy part. The questions here are written the same way - a situation, a set of plausible actions, and one that is right because of something specific about the situation.
Every question carries an explanation, and none of them restates the winning option. That distinction matters more than it sounds. An explanation that says "the answer is a credentialed scan because a credentialed scan is correct here" has taught you nothing you can carry to a question you have not seen. Each one starts from the mechanism - why the thing behaves the way it does - and then names the boundary where a different choice would have been right instead. Every explanation also ends with the CompTIA domain and competency it comes from, so you can go back to the V4 objectives and read the source rather than take our word for it.
157 of the 700 are drag-and-drop boards, and they are there because the ordering questions are the ones that expose whether you have understood a process or memorized a list. Placing containment, eradication and recovery in sequence is a different act from recognizing the words. Another 85 questions put something to read above the options - a SIEM query, a log excerpt, a scanner result, a process listing - because reading output is the objective in Domain 1 and Domain 2, not a decoration on it. Domain 4 has none of those, deliberately: nothing in reporting and communication happens at a command line, and manufacturing questions that pretend otherwise would misrepresent the exam.
The coach sits next to the question you are on. Ask it what a term means, when one approach is used instead of another, or why a distinction matters, and it answers in a couple of paragraphs without leaving the exam. It will not tell you which option to pick, and it does not know which one you have selected - that is the point of having it available during a timed sitting rather than only in review. It covers the vocabulary the objectives assume you already have as well as the objectives themselves, so "what is lateral movement" and "how do I decide which vulnerability to fix first" are both answerable.
CySA+ is where Security+ candidates usually go next, and CompTIA designed the progression that way. The overlap is real but it is not where people expect. The vocabulary carries over almost entirely; the mode of thinking does not. Security+ rewards knowing that segmentation limits lateral movement. CySA+ gives you traffic between two workstations at three in the morning and asks what it tells you and what you do first. If the wrong answers cluster in the fundamentals rather than in the analysis, our CompTIA Security+ (SY0-701) practice exam is the place to go back to first.
The other direction is worth knowing about before you sit this one. CySA+ and PenTest+ are the two halves of the same pathway: one asks what an attack looks like from inside the logs, the other asks how the attack was carried out. Analysts who can read both usually got there by taking them close together, and the CompTIA PenTest+ (PT0-003) practice exam covers the offensive side of the same ground.
The pass mark here is 70 percent of our own questions, which is a plain percentage and not the scale CompTIA uses on the real paper. Each sitting draws 85 questions from the pool of 700, weighted to the published domain split - roughly 29 from security operations, 22 from vulnerability management, 20 from incident response and 14 from reporting - so a single sitting is a fair sample of the shape of the exam rather than whatever came up first. The result breaks down by domain, so you can see where the gap is instead of only whether you passed.
40 questions are free and they span all four domains, including the drag-and-drop boards and the questions that carry a log excerpt or a scanner result to read. They are ordinary questions from the pool rather than an easier sample, so what you see in the preview is what the rest of it is like.
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