Which characteristic of Alibaba Cloud aids in recovery from failures?

The characteristic that aids in recovery from failures is the scalable server architecture. This architecture allows for the dynamic allocation and provisioning of resources based on demand. In the event of a system failure, scalable architectures can quickly allocate additional resources to restore services, ensuring minimal downtime. This feature is particularly beneficial for managing unexpected loads or failures, as it allows systems to adapt and respond by scaling out (adding additional servers) or scaling in (removing servers that are no longer needed).

In contrast, centralized processing focuses on consolidating resources, which can create a single point of failure. Backup-only solutions, while useful for data recovery, do not actively prevent or mitigate failures in real-time. Limited data access creates barriers to recovery by restricting users or systems from accessing necessary data needed for recovery processes. Hence, scalable server architecture is the most robust option for facilitating quick recovery from failures, promoting resilience in cloud environments.