Availability on Associate Data Practitioner

What you can expect on the exam

Storage location failure protection. Be ready to assess how storage location types protect data, recognizing that zonal storage lacks zonal outage protection while regional storage replicates synchronously across zones.
Cross-region redundancy and uptime. Expect to compare dual-regional and multi-regional storage, which replicate asynchronously across separate regions to achieve 99.99% Availability.
Automated failover and persistent paths. You may need to know how automated failover functions during regional incidents, ensuring a recovery time objective of zero without requiring changes to storage paths.
Turbo replication for paired regions. Be ready to identify how Turbo replication provides rapid synchronization for dual-regional storage by replicating all newly written objects within 15 minutes.
Measuring Availability as an indicator. Expect to recognize Availability as a service level indicator measured either by the percentage of time an application is usable or as the ratio of successful responses to total responses.

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AvailabilityConcept

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