Data Center Interconnect (DCI) refers to the technology and methods used to connect multiple data centers, allowing them to communicate and share resources efficiently. This interconnection enables organizations to enhance their data management, improve redundancy, and ensure business continuity by distributing workloads across different locations. DCI can involve various technologies, such as fiber optic cables, MPLS, and Ethernet, to facilitate high-speed data transfer. By linking data centers, businesses can optimize their operations, support cloud services, and provide better disaster recovery solutions, ultimately leading to improved performance and reliability in their IT infrastructure.