Nutanix Certified Associate Practice Exam

What is the benefit of using Async DR in a multi-site datacenter setup?

1. Real-time data replication

2. Enhanced backup performance

3. Improved resiliency and recovery

4. Reduced network overhead

The correct answer is: Improved resiliency and recovery

Using Async DR (Asynchronous Disaster Recovery) in a multi-site datacenter setup significantly enhances resiliency and recovery, making it the most appropriate choice. This capacity allows data to be replicated from one site to another asynchronously, meaning that write operations at the primary site can continue without waiting for confirmations from the secondary site. This reduces the likelihood of performance bottlenecks that synchronous replication might create, especially over distances where latency could impact application performance. In addition, Async DR provides the ability to recover data even when the secondary site becomes compromised, ensuring that the applications can maintain continuity. Should a failure occur at the primary site, the secondary site can be leveraged for recovery, allowing for quick failover and minimizing downtime. This strategy not only helps in achieving a higher level of data availability but also ensures that businesses can continue operations with minimal disruption in the event of a site failure. Other options such as real-time data replication relate to synchronous approaches, while enhanced backup performance and reduced network overhead may be benefits in other contexts, they do not primarily capture the key advantages of Async DR in terms of resiliency and recovery. Thus, the focus on improved resiliency and the ability to recover quickly underlines the critical importance of this approach in multi-site environments.