Posted by You have an on-premises network that contains several servers. You plan to migrate all the servers to Azure. You need to recommend a solution to ensure that some of the servers are available if a single Azure data center goes offline for an extended period. What should you include in the recommendation? Try to answer this.
Answer: A
Explanation:
Fault tolerance is the ability of a system to continue to function in the event of a failure of some of its
components. In this question, you could have servers that are replicated across data centers.
Availability zones expand the level of control you have to maintain the availability of the applications and data on your VMs. Availability Zones are unique physical locations within an Azure region. Each zone is made up of one or more data centers equipped with independent power, cooling, and networking. To ensure resiliency, there are a minimum of three separate zones in all enabled regions. The physical separation of Availability Zones within a region protects applications and data from data center failures.
With Availability Zones, Azure offers the industry’s best 99.99% VM uptime SLA. By architecting your solutions to use replicated VMs in zones, you can protect your applications and data from the loss of a data center. If one zone is compromised, then replicated apps and data are instantly available in another zone.
Code Teddy 