99.999 Uptime: The high availability of a system or service, quantified as being operational 99.999% of the time, often referred to as “five nines”. This equates to a downtime of approximately 5 minutes and 15 seconds per year, thus indicating a system with highly reliable and uninterrupted service. High availability is crucial for systems where even minimal downtime can lead to significant operational or financial impact.
Categories: CC D2: BC - DR and Incident Response Concepts | CCSP D3: Cloud Platform and Infrastructure Security | CISM D4: Incident Management | CISSP D3: Security Architecture and Engineering | Security+ D5: Security Program Management and Oversight | SSCP D3: Risk Identification Monitoring and Analysis
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