Jack is worried about outages that may disrupt service from his IaaS vendor’s cloud environment. Which of the following options provides the greatest likelihood of avoiding service disruptions from an outage from his current IaaS vendor?

In circumstances where a single vendor’s outages are a major concern, multi-cloud deployments may be appropriate. This is more common when the application is containerized or otherwise easily portable. The more customized to the current cloud vendor the application or service is, the more difficult it is to move to other cloud vendors and the more costly the move will be. In addition, multi-cloud can drive additional costs for overhead services, making multi-cloud a choice organizations undertake cautiously. Deploying in multiple AZs or regions will not avoid an outage if the IaaS vendor has a cloud-wide issue, and contractual obligations won’t stop outages—they will typically just provide penalties if there is an outage longer than the contract allows.