CompTIA CySA+ (CS0-003)
Practice exam for the CompTIA CySA+ CS0-003 certification. Covers security operations, vulnerability management, incident response and management, and reporting and communication.
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Sample Questions — CompTIA CySA+ (CS0-003)
5 free sample questions from this practice exam. Correct answers are highlighted.
1. A SOC analyst is reviewing SIEM alerts and notices that log timestamps from a remote branch office are consistently 3 hours ahead of the SIEM server time. Which configuration issue is most likely causing this discrepancy?
2. A security analyst needs to investigate a potential intrusion on a Windows workstation. Which Windows Registry hive should the analyst examine to find recently executed programs that do not appear in standard process lists?
3. An organization wants to implement a solution that automatically executes a series of predefined response actions when a specific SIEM alert fires, such as isolating an endpoint and blocking an IP at the firewall. Which technology best fulfills this requirement?
4. A threat analyst observes that an internal host is making outbound DNS queries for randomly generated 32-character subdomains of a single domain at regular 60-second intervals. Which type of malicious activity does this behavior most likely indicate?
5. A SOC analyst captures network traffic and wants to filter for all TCP SYN packets directed at a web server to identify potential reconnaissance activity. Which Wireshark display filter should the analyst use?
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Study Guides & Articles
How to Pass CompTIA CySA+ (CS0-003) in 2026: Complete Study Guide
CySA+ is CompTIA's analyst-level certification — it tests threat detection, vulnerability management, and incident response at a deeper level than Security+. This guide covers all 4 domains, what makes CySA+ harder than Security+, and an 8-week study plan for working security analysts.
CySA+ Deep Dive: Threat Hunting, Vulnerability Management, and Security Operations
Security Operations (33%) and Vulnerability Management (30%) together make up 63% of CySA+. This guide goes deep on threat hunting methodologies, vulnerability scoring (CVSS), log analysis techniques, SIEM correlation rules, and the difference between proactive and reactive security operations.
CySA+ Exam Traps: Incident Response and Reporting Questions That Trip Analysts
CySA+ candidates lose marks on CVSS metric confusion, threat intelligence terminology, the exact incident response phase sequence, and the difference between vulnerability scanning and penetration testing. This guide covers 11 traps drawn from the highest-weight domains.