Which domain is worth the most?

Security operations at 34% and Vuln management at 26%. Start there, and keep coming back: the heaviest domains decide most pass and fail results.

How long should I plan for?

Set aside five to eight weeks at about five focused hours a week, then let a full practice sitting decide your exam date. If you already work in IT, the first weeks move faster. Do not book until a fresh sitting, with questions you have not seen, lands above the pass mark.

What score do I need to pass?

You need 750 on the 100 to 900 scale. Keep a margin above that in practice, because exam-day stress costs a few points.

Practice reading logs before anything else. Most questions are small investigations, not recall.

Do I need hands-on experience?

Helpful, not required. The browser labs let you practise the hands-on tasks without a server or a rack, and each lab grades the end state rather than the exact command you typed.

Are the practice questions the same as the real test?

No. SecLern questions are written originally for this site and mapped to the published objectives. They are never copied from a real exam.

What should I do the week before the exam?

Take one full simulation early in the week and review every miss. Spend the middle of the week on the two domains that scored lowest, then stop adding new material 48 hours out. Confirm your appointment and ID, sleep, and read the goal line twice on every performance task.

Is this page current?

This page is built against Exam Objectives Document Version 2.0 (2.0), verified 2026-10-16. Exam owners change objectives and retirement dates, so confirm the date for your language before you book.

CertificationsCySA+

CompTIA · CS0-004

CompTIA CySA+ CS0-004

CompTIA CySA+ (CS0-004) is the analyst exam: reading SIEM logs, triaging vulnerability reports, mapping activity to attacker frameworks, and writing the report that gets something fixed. It assumes you already think like Security+ and asks you to work like an analyst.

Security+ holders aiming at SOC analyst roles, IT staff moving into detection and response, and anyone who enjoys finding the malicious needle in a log haystack.

Study CS0-004 free

See labs Check version dates

Version status

CompTIA has not published a date. Three years after launch is an estimate.

Retires: Estimated 2029

Where the marks live

Domain weights from the current CS0-004 objectives. Start with the heaviest slice, not the first chapter.

Security operations leads at 34%

34%Security operations

How much study time does CS0-004 need?

Pick the closest starting point. The range below is a planning estimate, not a promise or a pass prediction.

95 to 145 hoursat a steady pace

That is up to 29 weeks at 5 hours a week, or 19 weeks at 8 hours. Some IT background, but the exam material is still new.

Estimate only. Based on the exam level and a study-pace assumption. Your background, exam date and practice scores will move it.

A study plan that works

Order matters

Practice reading logs before anything else. Most questions are small investigations, not recall.
Learn CVSS as prioritization logic (what makes a 9.8 vs a 4.3), not as a formula to memorize.
Map common techniques to their framework tactics so ATT&CK questions read like vocabulary.
Write practice incident notes. The exam tests communication and reporting more than people expect.

Try one question

Live demo

Demo questionSecurity operations

An alert shows PowerShell launched from Word with an encoded command line, followed by an outbound connection to a new domain. What should the analyst do first?

Written for this page. It is a teaching demo, not an item from the question bank or the real exam.

Try the hands-on shape

About 2 minutes

Try it: change a firewall rule and see the probes change

HTTPS from anywhere
Telnet (block it)
SSH from admins only

HTTPS (port 443): connected
SSH (port 22): connected
Telnet (port 23): refused by the rule
HTTP (port 80): no rule matches, so the default deny drops it

A teaching model of rule order and default deny, not a real firewall.

Demo preview. A teaching model with fixed sample data, not the real lab. Full labs run in the browser with checkable steps.

Practice a performance question

35 performance-based questions are written for CompTIA CySA+ CS0-004. They ask you to do the task in a simulated console, table or form, and they grade in parts, so a half-right answer still earns credit.

How performance questions are scored

Sample performance questionMatch each task to the control or service

Tailgating at the badge door

A contractor badge still works after the contract ends

Smoke in the server room, and water is not allowed

A teaching demo written for this page. It is not a real exam item, and nothing here is saved.

This matching sample is local and ungraded. The full set is included in practice for this exam.

Common traps

Ways smart people lose points on this exam.

Jumping to containment before analysis. The exam punishes skipping the investigation step.
Treating every high-severity finding as urgent. Exploitability and context decide priority.
Ignoring the report-writing and communication objective. It is scored, and analysts who cannot write do not advance.

Practise CS0-004, three ways

Every lab is a job task in the tool that job uses, graded on the end state you leave behind. The PBQ pages explain the performance formats this exam uses and open one real scenario in the browser. The practice test gives you fifteen questions with a reason for every option.

Open the CS0-004 labs

Objectives by domain

Every published CS0-004 objective, grouped by the domain that carries it. The wording stays with CompTIA.

15 objectives

Security operations34% of the examStart here

1.1SecOps architecture
1.2Malicious indicators
1.3Analyst tools
1.4Threat intel & hunting
1.5SecOps efficiency
1.6AI in SecOps

Vulnerability management26% of the exam

2.1Scanning methods
2.2Assessment tools
2.3Prioritization
2.4Controls & risk

Incident response24% of the exam

3.1Attack frameworks
3.2IR process
3.3IR techniques

Reporting16% of the exam

4.1Vuln reporting
4.2Incident reporting

The full entry for each objective (the explainer, key terms, traps and practice questions) lives in the Study Book. One objective per certification is free to read; Pro opens the rest.

Questions about this exam

85 questions in 165 minutes. 750 to pass on the 100 to 900 scale. Domains: Security operations (34%), Vulnerability management (26%), Incident response (24%), Reporting (16%).

Study CS0-004 with your weak spots in view

Daily sessions that aim at your gaps, hands-on labs, and full simulations under the real clock. Free to start.

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