CompTIA Security+ (SY0-701)General Security ConceptsEasy
An organization installs a second internet service provider (ISP) link and a backup generator to ensure systems remain accessible during outages. Which pillar of the CIA triad is primarily being addressed?
- AConfidentiality
- BAvailability
- CIntegrity
- DNon-repudiation
Show answer & explanationAnswer & explanation
Correct answer: B. Availability
Redundant ISP links and backup power are designed to keep systems and data accessible to authorized users, which directly supports the availability pillar of the CIA triad.
Why the other options are wrong
- A. Confidentiality protects data from unauthorized disclosure, unrelated to redundancy.
- C. Integrity ensures data has not been altered, not addressed by redundancy.
- D. Non-repudiation is not part of the CIA triad and concerns proof of actions.
Availability
The CIA triad pillar ensuring authorized users have reliable and timely access to information and systems.
- Achieved through redundancy, failover, and backups
- Threatened by DoS attacks and hardware failure
- Measured by uptime/SLA metrics
Memory trick: Availability = Always accessible