Which ensures that the system that processes, delivers, and stores information is accessible to authorized users when required?

Which ensures that the system that processes, delivers, and stores information is accessible to authorized users when required?

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

Answer: (C)

The property being tested is availability. It means ensuring that the system that processes, stores, and delivers information is accessible to authorized users when they need it. Achieving this requires keeping services up and running and able to respond quickly, even in the face of failures or attacks. Practically, that involves redundancy (multiple servers, power, and network paths), robust backups and rapid restoration, fault-tolerant hardware, load balancing, failover capabilities, and continuous monitoring with prepared incident response and disaster recovery plans. This focus on uptime and reliable access distinguishes it from confidentiality (protecting data from unauthorized access), integrity (keeping data accurate and unaltered), and non-repudiation (providing proof of actions or communications). Availability is all about making sure authorized users can reach the systems and data when needed.

The property being tested is availability. It means ensuring that the system that processes, stores, and delivers information is accessible to authorized users when they need it. Achieving this requires keeping services up and running and able to respond quickly, even in the face of failures or attacks. Practically, that involves redundancy (multiple servers, power, and network paths), robust backups and rapid restoration, fault-tolerant hardware, load balancing, failover capabilities, and continuous monitoring with prepared incident response and disaster recovery plans. This focus on uptime and reliable access distinguishes it from confidentiality (protecting data from unauthorized access), integrity (keeping data accurate and unaltered), and non-repudiation (providing proof of actions or communications). Availability is all about making sure authorized users can reach the systems and data when needed.