Couchbase offers distinct solutions for data replication and synchronization, tailored for different use cases in distributed architectures. Cross Datacenter Replication (XDCR) facilitates inter-cluster data replication across various regions and datacenters, ensuring high availability and disaster recovery, with options for unidirectional and bidirectional replication and conflict resolution. It supports scenarios like disaster recovery, data locality, and geo-fencing. Meanwhile, Couchbase Sync Gateway and Capella App Services are designed for data synchronization in mobile, IoT, and edge applications, enabling cloud-to-edge data sync through WebSockets and supporting functionalities like conflict resolution and access control via channels. This system is particularly advantageous for environments requiring rapid data updates and consistency across a distributed network of users and devices. These tools collectively offer robust solutions for organizations needing scalable, efficient, and reliable data management across diverse environments.