You have an on-premises network with several servers and plan to migrate them all to Azure. Recommend a solution to ensure some servers remain available if a single Azure data center goes offline for an extended period. What should you include in the recommendation?

Fault tolerance ensures that an application remains available even if a component fails. By deploying servers across multiple Azure data centers (regions or availability zones), you can achieve fault tolerance. If one data center experiences an outage, the application can continue to run from another, maintaining availability. Elasticity refers to the ability to automatically scale resources up or down based on demand, which is about performance and cost, not disaster recovery. Scalability is the ability to handle increased load, also related to performance, not resilience to a data center outage. Low latency focuses on minimizing delays in data transmission, which improves user experience but doesn't guarantee availability during a data center failure.