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CompTIA CS0-004 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Security Operations	34%	- Tools for Determining Malicious Activity 1. Threat intelligence platforms 2. Domain and IP reputation 3. File analysis 4. Packet analysis 5. Decoding and parsing 6. Endpoint security 7. Email analysis 8. User and entity behavior analysis 9. File formats 10. Programming and scripting languages 11. Pattern recognition and suspicious command analysis 12. Sandboxing 13. Log analysis and SIEM - Artificial Intelligence in Security Operations 1. AI use cases 2. AI risks 3. AI governance - System and Network Architecture in Security Operations 1. Critical infrastructure concepts 2. Encryption techniques 3. Logging concepts 4. Infrastructure and system architecture concepts 5. Network architecture concepts 6. Identity and access management 7. Data protection concepts 8. Device management concepts 9. Operating system concepts - Efficiency and Process Improvement in Security Operations 1. Technology and tool integration 2. Automation and orchestration 3. Streamline operations 4. Standardize processes 5. Data enrichment - Threat Intelligence and Threat Hunting 1. Confidence-level impacts 2. Cyber deception 3. Collection methods and sources 4. Indicators of compromise 5. Threat modeling 6. Threat mapping 7. Tactics, techniques, and procedures 8. Threat actors - Indicators of Potential Malicious Activity 1. Unauthorized configuration 2. Identity-based indicators 3. Network-related indicators 4. Cloud-related indicators 5. Email-related attacks 6. Host-related indicators 7. Social engineering attacks 8. Application-related indicators
Topic 2: Incident Response and Management	24%	- Incident Response Process 1. Eradication 2. Recovery 3. Analysis 4. Detection 5. Post-incident activities 6. Containment 7. Preparation - Incident Response Techniques 1. Remediation and verification 2. Alerts, notifications, and triage 3. Training and exercises 4. Corrective action development 5. Evidence gathering and preservation 6. Restoration 7. Timeline, severity, impact, and prioritization 8. Incident response and communication plans 9. Playbooks and roles 10. Log collection, correlation, and enrichment 11. Isolation and escalation 12. Root cause analysis - Attack Methodology Frameworks 1. Cyber Kill Chain 2. Diamond Model of Intrusion Analysis 3. MITRE ATT&CK
Topic 3: Reporting and Communication	16%	- Security Operations and Incident Response Reporting and Communication 1. Communication plan 2. Executive summary 3. Incident declaration and escalation 4. Operational security awareness 5. Post-incident reporting 6. Shift and incident handover 7. Internal threat intelligence report 8. Metrics and key performance indicators - Vulnerability Management Reporting and Communication 1. Compliance findings 2. Inhibitors to remediation 3. Risk scorecards 4. Action plans 5. Vulnerability scan reports 6. Stakeholder identification and communication 7. Metrics and key performance indicators
Topic 4: Vulnerability Management	26%	- Vulnerability Scanning Methods 1. Planning considerations 2. Scan types 3. Asset inventory 4. Security baseline scanning 5. Discovery - Vulnerability Assessment Tools 1. Network scanning and mapping 2. Multipurpose tools 3. Vulnerability scanners 4. Web application scanners 5. Cloud infrastructure assessment tools 6. Breach attack simulation tools - Vulnerability Prioritization and Mitigation 1. Mitigation strategies 2. Vulnerability prioritization criteria 3. Context awareness 4. Scoring methods 5. Validation of remediation - Control Types, Risks, and Vulnerability Management 1. Control types 2. Policies, governance, and service-level objectives 3. Risk concepts 4. Control functions 5. Risk management strategies 6. Third-party risk 7. Application security

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CompTIA Cybersecurity Analyst (CySA+) Certification Exam Sample Questions (Q52-Q57):

NEW QUESTION # 52
Which of the following best describes why operational technology (OT) devices use compensating controls?

A. Traditional IT security solutions may not be compatible.
B. OT devices are typically not encrypted.
C. Industrial control systems use significant network bandwidth.
D. Outage windows are usually scheduled.

Answer: A

Explanation:
Operational technology environments frequently contain specialized controllers, industrial control systems, supervisory control and data acquisition equipment, embedded operating systems, and vendor-specific devices that were designed primarily for availability, safety, deterministic operation, and long service life. Traditional enterprise security controls-such as endpoint detection agents, vulnerability scanners, host-based firewalls, aggressive patching mechanisms, or modern authentication software-may not be supported and can potentially interfere with operational processes.
For this reason, organizations often implement compensating controls around OT assets when the preferred security control cannot be deployed directly. Examples include network segmentation, tightly controlled firewall rules, protocol allowlisting, passive monitoring, secure jump servers, access restrictions, enhanced logging, and additional physical controls. These measures reduce risk without requiring unsupported software to be installed on sensitive industrial devices.
High network bandwidth consumption is not the defining reason for compensating controls. Scheduled outage windows can actually facilitate maintenance rather than explain why alternative controls are required.
Likewise, lack of encryption may be a weakness in some environments, but it does not explain the broader compatibility problem.
CS0-004 specifically places OT, ICS, and SCADA under critical-infrastructure concepts in Security Operations and separately recognizes compensating controls as a formal vulnerability mitigation strategy.
Study Guide Reference: Security Operations # Critical Infrastructure # OT/ICS/SCADA # Security Architecture # Compatibility Constraints and Compensating Controls.

NEW QUESTION # 53
A security analyst isolates a Windows 11 workstation from the network after known malware is detected. The list of security information and event management (SIEM) events during the malware installation and timeline does not identify a specific user who was logged in. The security analyst uses the local administrative account to log in and would like a list of logins to the machine.
Which of the following PowerShell commands should the analyst use?

A. Eventvwr.exe -LogType "Security" EventID "*" | Export-Csv c:\temp\Seclog.csv -NoTypeInformation
B. Get-WinEvent -FilterHashTable @{ Logname="System"
ED=9754;
} | Sort-Object TimeCreated -Descending | Export-Csv c:\temp\Seclog.csv -NoTypeInformation
C. Get-WinEvent -FilterHashTable @{ Logname="Application"
ED=7124;
} | Sort-Object TimeCreated -Descending | Export-Csv c:\temp\Seclog.csv -NoTypeInformation
D. Get-WinEvent -FilterHashTable @{ Logname="Security"
ED=4624;
} | Sort-Object TimeCreated -Descending | Export-Csv c:\temp\Seclog.csv -NoTypeInformation

Answer: D

Explanation:
Windows Security Event ID 4624 records a successful logon session. Therefore, querying the Security log for event 4624 provides the analyst with historical evidence of successful logins to the affected workstation.
Get-WinEvent is the appropriate PowerShell cmdlet for retrieving Windows event records. The FilterHashtable parameter allows efficient server-side filtering using attributes such as LogName and ID, rather than retrieving an entire event log and filtering the results afterward. Microsoft specifically documents LogName and ID as valid FilterHashtable keys and recommends this approach for efficient event-log querying.
The command then uses Sort-Object TimeCreated -Descending so the newest login events appear first, and Export-Csv preserves the resulting records for investigation.
Option A does not use the correct PowerShell event-query syntax shown. Options C and D search inappropriate log channels and unrelated event IDs. The evidence needed is authentication history, making the Windows Security log and successful-logon identifier 4624 the correct combination.
Study Guide Reference: Incident Response and Management # Evidence Collection # Windows Event Logs
# PowerShell # Get-WinEvent # Security Event ID 4624 # Timeline Reconstruction.

NEW QUESTION # 54
A systems administrator reviews a ticket from a third-party SOC regarding a recent security event. The SOC provided the following table:

Which of the following is most likely the reason for the SOC ticket?

A. Geoblocking policy
B. Impossible travel
C. Time-of-day restrictions
D. Brute-force authentication

Answer: B

Explanation:
The log entries show successful logins for the same user account from the United States and later from India within a relatively short period. Traveling between those locations in the elapsed time would be unrealistic, which is a classic indicator of impossible travel. This type of alert is commonly generated when authentication events occur from geographically distant locations in a timeframe that is physically impossible for a legitimate user.

NEW QUESTION # 55
A spillage incident results in the access of controlled information across multiple unauthorized business units. Which of the following response techniques should be implemented first?

A. Containment and isolation
B. Escalation and monitoring
C. Analysis and triage
D. Evidence and legal hold

Answer: A

Explanation:
Containment and isolation must be implemented first to immediately stop further unauthorized access and prevent additional spread of controlled information across business units.

NEW QUESTION # 56
Customers are unable to upload files to an SFTP server. Firewall logs show the following activity sourced from multiple IP addresses in one geographic region:

The analyst reviewing the logs notices that the session_end_reason does not change for any of the log entries. Which of the following is the next step the analyst should take to determine what is occurring?

A. Correct the misconfigured firewall by blocking dest_port 22 to prevent further credential brute- force attacks from src_IP 103. l. 114.26.
B. Take a packet capture of all traffic to or from dest_IP 199.52.99.11 to see whether it is responding to SYN-ACK with an ACK.
C. Review endpoint detection logs on the SFTP server for any malware running on dest_port 22 that may be intercepting client communications.
D. Submit a request to the engineering team to restart SFTP services on the host due to the session limit being reached.

Answer: B

Explanation:
The firewall log shows TCP traffic to port 22 is being allowed, but the sessions consistently end with an "aged-out/incomplete" status. This commonly indicates that the TCP three-way handshake is not completing. Capturing packets to determine whether the server is responding properly and whether clients are completing the handshake is the appropriate next step to identify where the connection process is failing.

NEW QUESTION # 57
......

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