Which term describes data or systems being accessible to authorized users when needed without disruption?

Which term describes data or systems being accessible to authorized users when needed without disruption?

• A. Availability
• B. Confidentiality
• C. Integrity
• D. Non-repudiation

Answer: (A)

The concept being tested is ensuring that data or systems are accessible to authorized users when needed without disruption. This is about availability—keeping services up, responsive, and usable, even in the face of failures or attacks. Think of redundancy, failover, and continuous uptime: multiple servers or paths, power and networking backups, regular backups, and disaster recovery plans so legitimate users can reach resources when they expect to. Confidentiality is about keeping information secret from unauthorized parties, not about everyday access by authorized users. Integrity focuses on data being accurate and not tampered with. Non-repudiation provides proof of origin and that a sender cannot deny their action. None of these center on the constant, reliable access that availability guarantees.

The concept being tested is ensuring that data or systems are accessible to authorized users when needed without disruption. This is about availability—keeping services up, responsive, and usable, even in the face of failures or attacks. Think of redundancy, failover, and continuous uptime: multiple servers or paths, power and networking backups, regular backups, and disaster recovery plans so legitimate users can reach resources when they expect to.

Confidentiality is about keeping information secret from unauthorized parties, not about everyday access by authorized users. Integrity focuses on data being accurate and not tampered with. Non-repudiation provides proof of origin and that a sender cannot deny their action. None of these center on the constant, reliable access that availability guarantees.