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Zorluk: ZorReliability, Predictability, and Disaster Recovery

A global supply chain logistics platform is being migrated to Microsoft Azure. The system must satisfy two key requirements:

1. The tracking API must remain available even if a single data center in the primary region experiences a hardware or power failure.
2. The order database must be restorable in a separate geographical region if the primary region suffers a complete, long-term outage.

Which two deployment strategies should the system architect implement to meet these requirements? (Select TWO.)

  1. Deploy the tracking API across multiple Availability Zones in the primary region.Cevap
  2. Configure geo-replication for the order database to an Azure paired region.Cevap
  3. C
    Deploy the order database across Availability Zones that span multiple separate geographical regions.
  4. D
    Configure locally redundant storage (LRS) for the order database to ensure it can recover from a complete regional outage.
  5. E
    Deploy the tracking API to a single availability zone and configure horizontal auto-scaling to launch instances in a secondary region during a local outage.

Cevap

Deploy the tracking API across multiple Availability Zones in the primary region, and configure geo-replication for the order database to an Azure paired region.
To protect against a single data center outage within a region, resources should be deployed across multiple Availability Zones, which provide isolation and reliability. To protect against a regional disaster, data must be replicated to a different geographical region (a paired region) to enable disaster recovery.

Adım Adım Çözüm

1
Analyze the first requirement regarding data center level resilience.
Identify that protection against a single data center failure within a region is achieved using Availability Zones, which are physically separate locations within the same region.
This directly maps to the cloud concept of High Availability and Reliability within a regional boundary.
2
Analyze the second requirement regarding regional level disaster recovery.
Identify that recovering from a complete regional outage requires replicating data to a separate geographic region, which is achieved through geo-replication (often to a paired region).
This directly maps to the cloud concept of Disaster Recovery (DR).

Anahtar Kavram

Reliability in Azure is achieved through High Availability (using Availability Zones within a region) and Disaster Recovery (using Geo-replication to a paired region).
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Reliability, Predictability, and Disaster Recovery

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