CompTIA CySA+ CS0-003 2025 — 55 Q&A Practice Exam
Cybersecurity Analyst Verified
Series:
CrashCourses Professional Study Series
Author:
Dr Z. Moomba, MBChB, MRCPsych | BethelWellness Ltd
Exam Target:
CompTIA CySA+ CS0-003
Year:
2025/2026
Format:
55 Questions with Verified Answers and Rationales
>
Author's Note:
This document is an original work produced for the CrashCourses Professional Study Series.
Clinical questions and professional scenarios were composed by Dr Z. Moomba based on current
exam objectives, published guidelines, and evidence-based sources (2024–2025). All patient
names, ages, and case details are fictional. Any resemblance to existing published Q&A banks is
coincidental. For personal study use only — not for reproduction or redistribution.
SECTION A — FOUNDATIONS
1.
A Tier 1 SOC analyst at a regional hospital trust receives an alert from the SIEM indicating a
sudden spike in outbound DNS traffic to a recently registered domain. The traffic originates from a
workstation in the radiology department. Which of the following best describes this observation in
the context of threat intelligence?
A) An Indicator of Compromise (IOC)
B) An Indicator of Attack (IOA)
C) A false positive generated by DNS prefetching
D) A zero-day exploit signature
1/4
Cybersecurity Analyst Verified
Series:
CrashCourses Professional Study Series
Author:
Dr Z. Moomba, MBChB, MRCPsych | BethelWellness Ltd
Exam Target:
CompTIA CySA+ CS0-003
Year:
2025/2026
Format:
55 Questions with Verified Answers and Rationales
>
Author's Note:
This document is an original work produced for the CrashCourses Professional Study Series.
Clinical questions and professional scenarios were composed by Dr Z. Moomba based on current
exam objectives, published guidelines, and evidence-based sources (2024–2025). All patient
names, ages, and case details are fictional. Any resemblance to existing published Q&A banks is
coincidental. For personal study use only — not for reproduction or redistribution.
SECTION A — FOUNDATIONS
1.
A Tier 1 SOC analyst at a regional hospital trust receives an alert from the SIEM indicating a
sudden spike in outbound DNS traffic to a recently registered domain. The traffic originates from a
workstation in the radiology department. Which of the following best describes this observation in
the context of threat intelligence?
A) An Indicator of Compromise (IOC)
B) An Indicator of Attack (IOA)
C) A false positive generated by DNS prefetching
D) A zero-day exploit signature
1/4
