Following an unrecoverable hardware failure at a primary data center, a network engineering team must execute a failover to a secondary warm disaster recovery site. Place the following disaster recovery procedure steps in the correct chronological order from first to last.
- 1Formally declare a disaster state and activate the Disaster Recovery Plan (DRP).
- 2Power on standby server infrastructure and verify system image integrity at the secondary site.
- 3Apply the latest transaction logs and data replicas to bring secondary databases current.
- 4Update external DNS records and network routing paths to point to the secondary site.
- 5Perform end-to-end validation testing and re-enable client access to critical applications.
Cevap
The correct chronological sequence for failover execution is: 1) Formally declare a disaster state and activate the Disaster Recovery Plan (DRP), 2) Power on standby server infrastructure and verify system image integrity at the secondary site, 3) Apply the latest transaction logs and data replicas to bring secondary databases current, 4) Update external DNS records and network routing paths to point to the secondary site, and 5) Perform end-to-end validation testing and re-enable client access to critical applications.
Executing a disaster recovery failover requires strict operational sequencing. First, formal disaster declaration authorizes DRP invocation. Next, standby infrastructure at the secondary warm site is powered on. Data replicas and transaction logs are then applied to align with the target RPO. Once data consistency is established, network routing and DNS records are updated to redirect client traffic. Finally, system validation ensures all services operate correctly before production traffic is admitted.
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Disaster Recovery Site Failover Sequence
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