This CS0-003 practice question tests your understanding of incident response and management. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A large e-commerce site is under a DDoS attack targeting its web servers. The incident response team is activated. Which goal should receive the HIGHEST priority during the response?
Maintain availability of the service.
Preserving service availability is the primary goal in a DDoS scenario.
Implement attribution.
Why wrong: Attribution is a long-term goal; not critical during active response.
Identify the attacker's identity.
Why wrong: Identification is often difficult and not the immediate priority.
Quantify the financial loss.
Why wrong: Quantifying loss is important but not the top priority during active attack.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Maintain availability of the service.
During a DDoS attack targeting web servers, the highest priority is maintaining availability of the service because the primary goal of incident response in this scenario is to preserve business continuity and minimize disruption to legitimate users. The incident response team must first focus on mitigating the attack (e.g., rate-limiting, blackholing traffic, or scaling resources) before any forensic or attribution steps, as service downtime directly impacts revenue and customer trust.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Maintain availability of the service.
Why this is correct
Preserving service availability is the primary goal in a DDoS scenario.
Related concept
Read the scenario before looking for a memorised answer.
Implement attribution.
Why it's wrong here
Attribution is a long-term goal; not critical during active response.
Identify the attacker's identity.
Why it's wrong here
Identification is often difficult and not the immediate priority.
Quantify the financial loss.
Why it's wrong here
Quantifying loss is important but not the top priority during active attack.
Common exam traps
Cisco often tests the principle that during an active incident, the priority is containment and recovery (availability) over forensic activities like attribution or identification, which are handled in later phases of the incident response lifecycle.
Detailed technical explanation
Under the hood, DDoS mitigation often involves techniques such as BGP blackholing (RTBH), rate-limiting via iptables or web application firewalls (WAFs), or leveraging CDN-based scrubbing centers. A subtle behavior is that even partial service degradation (e.g., slow responses due to resource exhaustion) can be considered a failure of availability, so the team must prioritize rapid traffic filtering or load balancing to maintain uptime. In a real-world scenario, an e-commerce site might use AWS Shield Advanced or Cloudflare to automatically detect and drop malicious traffic while keeping the site accessible to legitimate users.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A SOC analyst notices unusual lateral movement in the network at 2 AM. The IR playbook dictates: identify and contain (isolate the affected machine), then eradicate (remove the malware), then recover (restore from backup), then document. Skipping containment before eradication risks the attacker regaining access. Questions like this test the sequence and rationale of incident response phases.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Incident Response and Management — study guide chapter
Learn the concepts, then practise the questions
Incident Response and Management practice questions
Targeted practice on this topic area only
All CS0-003 questions
503 questions across all exam domains
CompTIA CySA+ CS0-003 study guide
Full concept coverage aligned to exam objectives
CS0-003 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise CS0-003 questions linked to Security Operations.
Practise CS0-003 questions linked to Vulnerability Management.
Practise CS0-003 questions linked to Incident Response and Management.
Practise CS0-003 questions linked to Reporting and Communication.
Practise CS0-003 questions linked to CompTIA A+ hardware.
Practise CS0-003 questions linked to CompTIA A+ mobile devices.
Practise CS0-003 questions linked to CompTIA A+ networking.
Practise CS0-003 questions linked to CompTIA A+ operating systems.
Practise CS0-003 questions linked to CompTIA A+ security.
Practise CS0-003 questions linked to CompTIA A+ software troubleshooting questions.
Practise CS0-003 questions linked to CompTIA A+ operational procedures questions.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Incident Response and Management — This question tests Incident Response and Management — Read the scenario before looking for a memorised answer..
The correct answer is: Maintain availability of the service. — During a DDoS attack targeting web servers, the highest priority is maintaining availability of the service because the primary goal of incident response in this scenario is to preserve business continuity and minimize disruption to legitimate users. The incident response team must first focus on mitigating the attack (e.g., rate-limiting, blackholing traffic, or scaling resources) before any forensic or attribution steps, as service downtime directly impacts revenue and customer trust.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
Last reviewed: Jun 25, 2026
This CS0-003 practice question is part of Courseiva's free CompTIA 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 CS0-003 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.