CS0-004
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CS0-004 Exam Overview
The CompTIA Cybersecurity Analyst (CySA+) certification validates a candidate’s ability to detect, analyze, and respond to cybersecurity threats while supporting security operations, vulnerability management, incident response, and risk communication.
The CS0-004 exam focuses on analyzing suspicious activity across networks, endpoints, cloud platforms, applications, and identity systems. Candidates must also understand how to use security tools, prioritize vulnerabilities, investigate incidents, communicate findings, and improve security operations.
CySA+ V4 introduces updated coverage of hybrid environments, identity telemetry, automation, artificial intelligence, threat hunting, risk-based vulnerability management, and modern incident response practices.
CertQueen CS0-004 preparation materials help candidates review the current objectives, practice certification-style questions, identify knowledge gaps, and prepare more efficiently for the official exam.
Page Contents
4. Tools and Technologies Covered
10. CertQueen Preparation Materials
CS0-004 Exam Information
| Exam name | CompTIA Cybersecurity Analyst (CySA+) V4 |
| Exam code | CS0-004 |
| Certification earned | CompTIA Cybersecurity Analyst (CySA+) |
| Number of questions | Maximum of 85 |
| Question formats | Multiple-choice and performance-based questions |
| Time limit | 165 minutes |
| Passing score | 750 |
| Scaled score range | 100–900 |
| Language | English; verify the official page for additional languages |
| Delivery methods | Pearson VUE test center or OnVUE online proctoring, subject to regional availability |
| Recommended experience | Approximately four years of hands-on experience as a SOC analyst, incident response analyst, or vulnerability analyst |
| Certification validity | Three years |
| Renewal requirement | 60 Continuing Education Units or another qualifying renewal option |
The CS0-004 exam uses scaled scoring. A score of 750 does not necessarily mean that candidates must answer a fixed percentage of questions correctly.
Performance-based questions may require candidates to analyze logs, correlate security events, interpret vulnerability data, investigate an incident, or select appropriate containment and remediation actions.
Who Should Take the CS0-004 Exam?
CS0-004 is intended for cybersecurity professionals responsible for monitoring security environments, analyzing suspicious activity, managing vulnerabilities, and responding to incidents.
Suitable candidates may include:
- Security operations center analysts
- Cybersecurity analysts
- Threat detection analysts
- Incident response analysts
- Vulnerability management analysts
- Threat intelligence analysts
- Threat hunters
- Security engineers
- Cloud security analysts
- Cyber defense analysts
- Digital forensics personnel
- Security operations team leaders
CompTIA recommends approximately four years of practical experience in a SOC analyst, incident response, or vulnerability management role.
CompTIA Network+ and Security+ knowledge can provide a useful foundation, but these certifications are not mandatory prerequisites for taking CS0-004.
CS0-004 Tools and Technologies
The CS0-004 blueprint is vendor-neutral. Candidates are expected to understand the functions and outputs of security technologies rather than memorize the interface of one vendor’s product.
Preparation should include familiarity with:
- Security information and event management platforms
- Endpoint detection and response tools
- Extended detection and response platforms
- Network detection and response tools
- Intrusion detection and prevention systems
- Packet capture and protocol analysis tools
- Vulnerability scanners
- Web application security scanners
- Cloud security monitoring tools
- Cloud access security brokers
- Identity and access monitoring
- Threat intelligence platforms
- Security orchestration, automation, and response tools
- Malware analysis tools
- Digital forensics tools
- MITRE ATT&CK
- Cyber Kill Chain
- Common Vulnerability Scoring System
- Common Vulnerabilities and Exposures
- Artificial intelligence and machine learning security tools
Candidates should be able to interpret logs, alerts, packet data, vulnerability findings, identity events, cloud telemetry, endpoint activity, and threat intelligence.
CS0-004 Exam Objectives
The CompTIA CySA+ V4 exam is organized into four domains covering security operations, vulnerability management, incident response, reporting, and communication.
Domain 1 – Security Operations (34%)
This is the largest CS0-004 domain. It evaluates whether candidates can monitor modern environments, analyze suspicious activity, use security tools, hunt for threats, and improve SOC processes.
System and Network Architecture
Preparation should include:
- Security architecture components
- Network segmentation and security zones
- Cloud and hybrid architectures
- Virtualization and container environments
- Identity and access concepts
- Authentication and authorization telemetry
- Centralized logging practices
- Log sources, collection, normalization, and retention
- Time synchronization and event correlation
Indicators of Malicious Activity
Preparation should include:
- Suspicious network traffic
- Command-and-control activity
- Data exfiltration indicators
- Unusual DNS requests
- Malicious or unexpected processes
- Persistence mechanisms
- Privilege escalation attempts
- Abnormal identity and authentication activity
- Cloud account misuse
- Endpoint, email, application, and web indicators
Security Operations Tools
Preparation should include:
- SIEM searches, rules, dashboards, and correlations
- EDR and XDR investigation
- Packet capture and network analysis
- Threat intelligence platforms
- IDS and IPS alerts
- Cloud security monitoring
- Identity monitoring
- Sandbox and malware analysis
- Security automation and orchestration
Threat Intelligence and Threat Hunting
Preparation should include:
- Threat intelligence sources
- Indicators of compromise
- Tactics, techniques, and procedures
- Threat actor motivations and capabilities
- Intelligence confidence and relevance
- MITRE ATT&CK mapping
- Hypothesis-driven threat hunting
- Baselining and anomaly detection
- Hunt documentation and findings
Efficiency and Process Improvement
Preparation should include:
- Security orchestration and automation
- Playbooks and runbooks
- Case management workflows
- Alert enrichment
- Alert deduplication and tuning
- Reducing false positives
- Continuous process improvement
- Operational metrics and service-level objectives
Artificial Intelligence in Security Operations
Preparation should include:
- AI-assisted alert analysis and prioritization
- Automated summarization and investigation support
- AI-assisted detection and threat hunting
- Potential hallucinations and inaccurate conclusions
- Bias and data-quality risks
- Data privacy and information exposure
- Human validation of AI-generated findings
- Governance, logging, and accountability
- Adversarial manipulation of AI systems
Domain 2 – Vulnerability Management (26%)
This domain evaluates whether candidates can select scanning methods, analyze findings, prioritize vulnerabilities, and coordinate risk-based remediation.
Vulnerability Scanning Methods
Preparation should include:
- Authenticated and unauthenticated scanning
- Agent-based and agentless scanning
- Internal and external assessments
- Network, host, cloud, and application scanning
- Credentialed scanning
- Passive vulnerability discovery
- Continuous and scheduled scanning
- Scanning scope and exclusions
- Production safety and operational constraints
Vulnerability Assessment Output
Preparation should include:
- Interpreting scanner findings
- Identifying false positives and false negatives
- Reviewing affected assets and services
- Understanding CVE and CWE information
- Interpreting CVSS scores and vectors
- Reviewing application security findings
- Analyzing cloud configuration findings
- Validating vulnerabilities through additional evidence
Prioritization and Mitigation
Preparation should include:
- Risk-based vulnerability prioritization
- Exploitability and active exploitation
- Asset value and business criticality
- Threat intelligence and environmental context
- Exposure and compensating controls
- Patching and configuration changes
- Segmentation and access restrictions
- Risk acceptance and exception processes
- Validation and rescanning after remediation
Controls, Risk, and Vulnerability Management
Preparation should include:
- Administrative, technical, physical, preventive, detective, and corrective controls
- Risk identification and treatment
- Policies, standards, procedures, and baselines
- Compliance requirements
- Remediation service-level agreements
- Vulnerability disclosure and coordination
- Metrics, dashboards, and trend analysis
Domain 3 – Incident Response and Management (24%)
This domain evaluates whether candidates can use attack frameworks, follow an incident response lifecycle, handle evidence, contain threats, and support recovery.
Attack Methodology Frameworks
Preparation should include:
- MITRE ATT&CK tactics and techniques
- Cyber Kill Chain stages
- Diamond Model concepts
- Mapping observed activity to attack behavior
- Using frameworks to identify detection gaps
- Communicating attacker progression
Incident Response Process
Preparation should include:
- Preparation
- Detection and analysis
- Triage and classification
- Containment
- Eradication
- Recovery
- Post-incident activities
- Lessons learned
- Playbooks, communication plans, and escalation procedures
Incident Response Techniques
Preparation should include:
- Incident scoping and prioritization
- Evidence collection and preservation
- Chain of custody
- Host and network isolation
- Account containment
- Blocking malicious indicators
- Removing persistence mechanisms
- Restoring systems safely
- Root cause analysis
- Validating remediation
- Coordinating internal and external stakeholders
Domain 4 – Reporting and Communication (16%)
This domain evaluates whether candidates can communicate security findings to technical and nontechnical audiences while maintaining accurate incident and vulnerability records.
Vulnerability Reporting and Communication
Preparation should include:
- Technical vulnerability reports
- Executive summaries
- Risk dashboards
- Remediation recommendations
- Exception and risk-acceptance documentation
- Escalation of overdue vulnerabilities
- Reporting trends and recurring findings
- Communicating with asset owners and leadership
Security Operations and Incident Reporting
Preparation should include:
- Incident tickets and case documentation
- Incident timelines
- Executive and technical reports
- Stakeholder notifications
- Regulatory and legal reporting considerations
- Post-incident reviews
- Lessons-learned reports
- Mean time to detect
- Mean time to respond
- Mean time to remediate
- Containment and remediation effectiveness
CS0-004 vs. CS0-003
| Comparison | CS0-004 | CS0-003 |
| Exam version | CySA+ V4 | CySA+ V3 |
| Exam status | Current examination | Previous examination scheduled for retirement |
| Security Operations | 34% | 33% |
| Vulnerability Management | 26% | 30% |
| Incident Response and Management | 24% | 20% |
| Reporting and Communication | 16% | 17% |
| Largest weighting change | Incident Response increases by four percentage points | Vulnerability Management had greater emphasis |
| Artificial intelligence | Explicit coverage of AI use cases, risks, validation, and governance | Limited explicit AI coverage |
| Cloud and hybrid environments | Expanded integration throughout security operations and vulnerability analysis | Covered, but with less emphasis on newer operational patterns |
| Identity security | Greater emphasis on identity telemetry and suspicious authentication activity | Identity concepts covered within broader security operations |
| Automation | Expanded focus on workflows, alert enrichment, orchestration, and operational efficiency | Automation and orchestration covered but less prominently |
| Incident management | Greater emphasis on practical response, escalation, evidence, recovery, and root cause analysis | Lower percentage of the overall exam |
| Number of questions | Maximum of 85 | Maximum of 85 |
| Time limit | 165 minutes | 165 minutes |
| Passing score | 750 on a 100–900 scale | 750 on a 100–900 scale |
| Question formats | Multiple-choice and performance-based | Multiple-choice and performance-based |
| Certification earned | CompTIA CySA+ | CompTIA CySA+ |
The four domain names remain the same, but their weightings and detailed objectives have changed. CS0-004 reduces the percentage assigned to vulnerability management and gives more weight to incident response.
The most visible content update is the explicit addition of artificial intelligence in security operations. Candidates must understand useful AI applications as well as hallucination, privacy, bias, governance, and adversarial risks.
CS0-004 also reflects the increasing importance of cloud, hybrid infrastructure, identity-based attacks, security automation, modern telemetry, risk-based prioritization, and measurable incident response outcomes.
CS0-004 Preparation Plan
The following six-week plan can be adjusted according to your cybersecurity operations experience.
Week 1 – Security Architecture and Telemetry
- Review network, endpoint, cloud, application, and identity architecture.
- Study logging, normalization, retention, and time synchronization.
- Practice recognizing suspicious network and endpoint activity.
- Review authentication and cloud account anomalies.
Week 2 – Security Tools and Threat Hunting
- Practice SIEM searches and event correlation.
- Review EDR, XDR, IDS, IPS, and packet analysis output.
- Study threat intelligence sources and confidence levels.
- Map observed activity to MITRE ATT&CK.
- Practice hypothesis-driven threat hunting.
Week 3 – Vulnerability Management
- Compare authenticated, unauthenticated, internal, external, and agent-based scans.
- Practice interpreting vulnerability scanner output.
- Review CVE, CWE, and CVSS concepts.
- Prioritize findings with asset value, exposure, exploitability, and threat intelligence.
- Review remediation, exceptions, and validation scans.
Week 4 – Incident Response
- Review the complete incident response lifecycle.
- Practice triage, scoping, containment, eradication, and recovery.
- Study evidence handling and chain of custody.
- Review MITRE ATT&CK, Cyber Kill Chain, and the Diamond Model.
- Practice root cause analysis.
Week 5 – AI, Automation, and Reporting
- Review AI-assisted security operations use cases.
- Study AI hallucination, bias, privacy, and governance risks.
- Review SOAR, runbooks, playbooks, and alert enrichment.
- Practice writing technical and executive reports.
- Review MTTD, MTTR, remediation, and effectiveness metrics.
Week 6 – Performance-Based Practice and Final Review
- Complete log analysis and event-correlation exercises.
- Practice packet, endpoint, identity, and cloud investigations.
- Complete vulnerability prioritization scenarios.
- Practice incident response performance-based questions.
- Complete timed sessions of up to 85 questions in 165 minutes.
- Review every incorrect answer against the related objective.
Original CS0-004 Sample Questions
The following original questions illustrate knowledge covered by the current blueprint. They are not copied from the official CompTIA examination.
Question 1
A SOC analyst observes repeated successful sign-ins to a user account from two geographically distant locations within ten minutes. Which type of activity does this most strongly suggest?
A. Impossible-travel activity
B. Normal password rotation
C. Scheduled vulnerability scanning
D. Database replication
Answer: A
Explanation: Successful authentications from locations that cannot realistically be traveled between in the available time may indicate stolen credentials or session compromise.
Question 2
A vulnerability scanner identifies a critical vulnerability on an isolated laboratory server and a high-severity vulnerability on an internet-facing payment server. Threat intelligence confirms active exploitation of the second vulnerability. Which finding should be remediated first?
A. The internet-facing payment server vulnerability
B. The isolated laboratory server vulnerability
C. Both findings have identical priority because the scanner listed one as critical
D. Neither finding requires remediation
Answer: A
Explanation: Risk-based prioritization considers exposure, asset criticality, and active exploitation rather than relying only on the base severity score.
Question 3
An endpoint generates an alert after PowerShell downloads an encoded payload and creates a scheduled task. Which MITRE ATT&CK behavior is most clearly represented by the scheduled task?
A. Persistence
B. Reconnaissance
C. Resource development
D. Impact assessment
Answer: A
Explanation: Attackers commonly create scheduled tasks to maintain execution across reboots or user sessions, making this a persistence technique.
Question 4
A generative AI assistant summarizes a security incident and claims that data was exfiltrated. The available network logs do not support this conclusion. What should the analyst do?
A. Validate the claim against original evidence before including it in the report
B. Accept the claim because AI analysis is always accurate
C. Delete the underlying logs
D. Close the incident immediately
Answer: A
Explanation: AI-generated security conclusions require human validation. Unsupported statements may result from incomplete context or hallucination.
Question 5
During an active ransomware incident, the response team identifies three additional infected endpoints communicating with the same command-and-control server. What should the team do first?
A. Isolate the affected endpoints and block the malicious infrastructure
B. Wait for the next scheduled vulnerability scan
C. Publish the incident report before containing the threat
D. Reinstall an unaffected server
Answer: A
Explanation: Immediate containment limits lateral movement, command-and-control communication, and additional damage while the investigation continues.
Question 6
Leadership wants a metric showing how long the SOC takes to recognize that a security incident has occurred. Which metric should be reported?
A. Mean time to detect
B. Mean time to remediate
C. Annual loss expectancy
D. Recovery point objective
Answer: A
Explanation: Mean time to detect measures the average time required to identify a security incident after it begins.
CS0-004 Frequently Asked Questions
Is CS0-004 difficult?
CS0-004 is an intermediate cybersecurity examination that can be difficult without practical security operations experience. Candidates must interpret evidence and choose appropriate actions rather than rely only on memorized definitions.
How many questions are on the exam?
CS0-004 contains a maximum of 85 questions.
How long do candidates have?
The time limit is 165 minutes.
What is the passing score?
The passing score is 750 on a scale from 100 to 900.
Are there performance-based questions?
Yes. The exam may include performance-based questions that require candidates to analyze security information or complete practical scenario tasks.
How long is the CySA+ certification valid?
CompTIA CySA+ is valid for three years from the certification date.
How can CySA+ be renewed?
Candidates can renew CySA+ by earning 60 Continuing Education Units, completing CompTIA CertMaster CE when available and eligible, passing a qualifying higher-level certification, or using another approved renewal method.
What is the CompTIA retake policy?
CompTIA generally does not require a waiting period between the first and second attempts. After a second failed attempt, candidates must normally wait at least 14 calendar days before trying again. Each attempt requires a valid voucher or payment.
Does CS0-004 earn a different certification from CS0-003?
No. Passing either active exam version earns the CompTIA CySA+ certification. The exam code does not normally appear as a separate certification title.
Can CS0-003 study materials still be used?
CS0-003 materials can help with shared fundamentals, but they should be supplemented with CS0-004 resources covering AI in security operations, updated automation, cloud and identity telemetry, revised incident response coverage, and the new domain weightings.
When does CS0-003 retire?
CS0-003 is the previous CySA+ version and is scheduled for retirement during the CS0-004 transition period. Candidates should verify the exact last testing date through CompTIA or Pearson VUE because dates may differ by language.
Does CySA+ require four years of experience?
No. Four years is a recommendation rather than a mandatory prerequisite. Candidates with less experience may still take the exam but may need additional laboratory and log-analysis practice.
How are CertQueen materials updated?
CertQueen reviews its CS0-004 preparation materials when CompTIA changes relevant objectives or certification information. Customers receive free updates for one year from the purchase date.
Are the sample questions actual exam questions?
No. The sample questions on this page are independently written study questions. They support legitimate exam preparation and do not reproduce confidential live exam content.
CertQueen CS0-004 Preparation Materials
CertQueen CS0-004 preparation materials are organized around the official CySA+ V4 objectives and provide focused practice across security operations, vulnerability management, incident response, reporting, and communication.
Using the preparation materials can help you:
- Review all four official exam domains.
- Understand the differences between CS0-004 and CS0-003.
- Practice analyzing network, endpoint, cloud, and identity indicators.
- Review SIEM, EDR, XDR, packet analysis, and threat intelligence tools.
- Improve vulnerability prioritization skills.
- Review incident triage, containment, eradication, and recovery.
- Understand AI use cases, limitations, and governance risks.
- Practice reporting and security metrics.
- Prepare for performance-based questions.
- Identify weak topics before taking the examination.
Use CertQueen materials together with the official CS0-004 Exam Objectives, CompTIA training, security laboratories, SIEM and EDR practice, packet analysis exercises, and hands-on incident response experience.
Ready to begin? Review the latest CS0-004 practice questions, study the explanations, and build a preparation plan around the objectives you have not yet mastered.
Start Your CS0-004 Exam Preparation Today
Disclaimer
CertQueen is an independent exam preparation provider and is not affiliated with, endorsed by, sponsored by, or authorized by CompTIA, Inc.
CompTIA, CySA+, Security+, Network+, and related names may be trademarks or registered trademarks of CompTIA, Inc. They are used on this page for identification and educational purposes only.
The sample questions on this page are independently written study questions. They are not copied from the live CS0-004 exam and should not be interpreted as actual or guaranteed exam content.
Certification details are subject to change. Candidates are responsible for reviewing the current official exam objectives, registration requirements, prices, available languages, retirement dates, retake policies, and certification terms before purchasing materials or scheduling the examination.
No training course, practice question set, or study guide can guarantee a passing result. Exam success depends on the candidate’s knowledge, practical experience, preparation, and performance during the official examination.