SLA’s vary based on the resource type and the location distribution of the resource. However, the minimum uptime for all Azure services is 99.9 percent.
Box 2: Yes
The SLA guaranteed uptime is increased (usually to 99.95 percent) when resources are deployed across multiple regions.
Box 3: No
The number of subscriptions is unrelated to uptime SLA’s. You can deploy resources to multiple regions under a single subscription or you can have multiple subscriptions with resources deployed to the same region.
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