CySA+ CS0-004 practice test: 15 free questions

What this CySA+ CS0-004 practice test measures

CySA+ is an analyst exam, so this set is written as a shift: an alert that needs scoping, a scan result that needs triage, an incident that needs an order, and a report that needs an audience. Security operations carries 34% of the marks and gets the largest share of the questions here, because that is where the exam spends its time.

The fifteen questions are grouped the way CS0-004 is grouped, so the domains that carry the most marks get the most questions. Each question has one key and three distractors, and every option carries its own explanation: the key says why it is right, and each distractor says the specific thing that makes it wrong. That is the part most free question sets skip, and it is the part that turns a miss into a lesson.

Nothing here is drawn from the paid bank or from a real exam. The questions were written for this page, mapped to the published CS0-004 objectives, and checked against every question in the SecLern packs so the same idea is not tested twice in different words.

How to use a practice test without wasting it

A practice test is a measurement, and a measurement you have already seen is worth less the second time. Take this one once, cold, before you revise anything: no notes, no lookups, no pausing. Fifteen questions will not take long, and the score is only useful if it reflects what you actually know today.

Mark every question you were unsure about, even the ones you got right. A lucky guess and a confident answer look identical in the score, and they are not the same thing. At the end, the questions you flagged tell you more than the ones you missed.

Then leave it alone for a while. Come back in a week and the same fifteen questions will feel different, which is useful evidence about whether the revision landed.

• Take it cold, once. Sit the fifteen questions in one go with a clock running and nothing open beside them. The result is a baseline, not a verdict.
• Read every explanation, including the ones you got right. The three distractors teach the distinctions the exam tests: which control, which order, which owner. A right answer for the wrong reason will not survive a differently worded question.
• Write the miss down by objective. Not "I got four wrong": name the objective id and the idea behind the question. That list becomes the next study session instead of a vague feeling of weakness.
• Move the miss into another format. If the miss was about a control, find the lab that uses it. If it was about order, find a PBQ that grades sequence. Reading the same explanation twice is not revision.
• Measure again with fresh questions. Repeat on unseen questions, not this set. When two fresh sittings land comfortably above the pass margin, the exam date is a scheduling decision rather than a hope.

What CS0-004 actually asks, domain by domain

The percentages below are the published weights, not a study plan. They say where the marks are, which is where your calendar should go first: Security operations carries 34% of CS0-004 and deserves the largest share of the remaining weeks.

The exam is 85 questions in 165 minutes, which is about 1.9 minutes per question on average, before you account for the 5 performance-based questions the simulation serves. That average is the whole timing argument: a question that takes three minutes has borrowed a minute from two others.

• Security operations (34%). Security operations is where an analyst lives: log sources, detection logic, endpoint telemetry, threat intelligence handling and the controls that shrink an attack surface. Expect the correct answer to be the one that produces evidence, not the one that merely blocks something.
• Vulnerability management (26%). Vulnerability management asks you to prioritise rather than to patch everything. Exposure, exploit availability and business context decide the order, and CVSS alone almost never decides it.
• Incident response (24%). Incident response is sequence and scope: identify, contain, eradicate, recover, then learn. The distractors are usually a correct action taken at the wrong point in the sequence.
• Reporting (16%). Reporting and communication is 16% and it is not filler: metrics that mean something, an executive summary with a decision in it, and the difference between what a technician needs and what a board needs.

Reading your score honestly

The published pass mark is 750 on the 100 to 900 scale. Your raw score out of fifteen is not that number: the real exam is scaled, and 85 questions sample far more objectives than fifteen can. Use the raw score to find gaps; use a full simulation before you book.

A useful rule for a fifteen-question sample: anything under ten correct means at least one domain is unlearned, not unlucky. Twelve or more with two flagged guesses means the knowledge is there and the risk is pace and wording. The number that matters is not the percentage; it is which domains the misses cluster in.

The app's full simulation is the honest test: 85 questions on the real clock, with the same domain mix the objectives describe, and 5 performance-based questions in front of it. Free accounts get thirty study questions a day and three PBQs; the timed simulations are Pro. That is the line between practising and measuring.

The week after this test

Five steps, in order. Each one uses a different surface, because reading the same page twice is not revision.

• Step 1. Take each missed alert question and write the detection logic out: what log, what field, what threshold. That is the skill the domain tests.
• Step 2. Open the CySA+ labs and work a SIEM queue end to end: triage, verdict, containment note. The lab grades the same judgement the questions probe.
• Step 3. Re-read the incident-response order and then write one page of containment steps for a ransomware case from memory. Order is where marks are lost.
• Step 4. Take the CySA+ PBQ examples page and work the log-triage scenario with hints off; the score report will name the hosts you misjudged.
• Step 5. Finish with two full simulations in the last fortnight, and review misses by domain rather than by question.

CS0-004 practice test questions