Which objective ensures systems and data are available when needed?

Which objective ensures systems and data are available when needed?

• A. Availability
• B. Confidentiality
• C. Integrity of data
• D. Integrity of processing

Answer: (A)

Availability means ensuring systems and data are accessible when needed. In practice, this focuses on keeping systems up, minimizing downtime, and ensuring users can access applications and information when required. It relies on redundancy, backups, disaster recovery plans, failover capabilities, and ongoing monitoring to prevent or quickly recover from interruptions. This direct emphasis on access and uptime is what the question is asking for. In contrast, confidentiality guards against unauthorized disclosure of information, while data integrity ensures information remains accurate and unaltered, and integrity of processing ensures processing is performed correctly. Those aspects are important, but they do not address access to systems and data when needed in the same direct way as availability.

Availability means ensuring systems and data are accessible when needed. In practice, this focuses on keeping systems up, minimizing downtime, and ensuring users can access applications and information when required. It relies on redundancy, backups, disaster recovery plans, failover capabilities, and ongoing monitoring to prevent or quickly recover from interruptions. This direct emphasis on access and uptime is what the question is asking for. In contrast, confidentiality guards against unauthorized disclosure of information, while data integrity ensures information remains accurate and unaltered, and integrity of processing ensures processing is performed correctly. Those aspects are important, but they do not address access to systems and data when needed in the same direct way as availability.