ISC2 CC Security Principles Practice Question
After a major DDoS attack, a company deploys redundant internet connections and load balancers to ensure continued access to its web services. Which principle of the CIA triad is being strengthened?
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
✓
Availability
Redundancy and load balancing help maintain access for authorized users, supporting availability.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Confidentiality
Why it's wrong here
Confidentiality concerns restricting data access to authorised parties through encryption, access control and similar mechanisms. Load balancers and redundant links preserve reachability under DDoS volume, which is an availability concern, leaving confidentiality unaffected by the added resilience.
- ✗
Non-repudiation
Why it's wrong here
Non-repudiation proves a party performed an action, using digital signatures and audit trails; it does not address availability. Redundant connections and load balancers maintain uptime during DDoS traffic, which strengthens availability. Non-repudiation would be the goal when disputing whether a transaction or message genuinely originated from a specific sender.
- ✓
Availability
Why this is correct
Availability ensures systems and data remain accessible to authorised users when required. Redundant internet connections and load balancers remove single points of failure, maintaining web service access during DDoS traffic floods. Confidentiality and integrity address disclosure and modification respectively, not uptime.
- ✗
Integrity
Why it's wrong here
Integrity concerns unauthorised alteration or corruption of data in transit and at rest. Redundant connections and load balancers maintain service availability during attack traffic, addressing uptime rather than data accuracy, so integrity is untouched by this architecture.
Go deeper
Related to this question
Key term
Distributed Denial-of-service
A cyberattack where many compromised computers flood a target system with traffic, making it unavailable to legitimate users.
Key term
Confidentiality Integrity and Availability
The CIA Triad is a foundational security model that ensures data is kept secret, unaltered, and accessible when needed.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CC practice question is part of Courseiva's free ISC2 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 CC exam.