正解:B
Explanation
Data center interconnect (DCI) is a solution that allows Layer 2 connectivity and data replication between geographically dispersed data centers. DCI can be implemented using various technologies, such as optical networks, MPLS, VPNs, or Ethernet. DCI can provide benefits such as improved disaster recovery, load balancing, resource pooling, and cloud services.
References:
Data Center Interconnect - CompTIA Network+ N10-008 Domain 1.4 - YouTube1 CompTIA Network+ Certification Exam Objectives, page 92