CCOA Cybersecurity Principles And Risk Practice Question
An analyst is assessing the 'Availability' of a database. Which scenario represents a threat to availability?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Distributed Denial of Service (DDoS) attack
Availability ensures systems are up. A Distributed Denial of Service (DDoS) attack explicitly targets uptime.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Packet sniffing on the wire
Why it's wrong here
This affects confidentiality.
- ✗
Replay attack
Why it's wrong here
This affects authentication/integrity.
- ✗
Unauthorized data modification
Why it's wrong here
This affects integrity.
- ✓
Distributed Denial of Service (DDoS) attack
Why this is correct
DDoS renders systems unavailable to legitimate users.
About these practice questions
Courseiva writes every CCOA question from scratch — 203 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official ISACA exam blueprint
This CCOA practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CCOA exam.