A Customer Uses VLANs for Tenant Network Separation

Multiple Choice

A customer uses VLANs for tenant network separation. However, they are not satisfied with the scalability limits of the setup. Which networking technology will help the service provider to overcome these performance limits?

A) data center bridging (DCB)
B) RDMA over Converged Ethernet (RoCE)
C) network virtualization generic routing encapsulation (NVGRE)
D) remote direct memory access (RDMA)