A.Hypervisor resources leakage

B.Poor NFV implementation

C.Hijack attack on hypervisor

D.DDoS attack on the SDN switches

A.Recovery of network flows when they fail

B.Privacy and segmentation between flows

C.Priority between different flows

D.Differentiated QoS flows, for different services

A.Control and User Planes Separation, Service Based Architecture, Multi-Access-Network, State-efficiency and Network Slicing

B.Dynamic Control plane, Service Based Architecture, Multi-Access-Network, State-efficiency and Network Slicing

C.Dynamic Control plane,Adaptive Architecture, Converged-Access-Network, Stateless and Network Self- healing

D.Dynamic Control plane, Adaptive Architecture, Multi-Access-Network, Stateless and Network Slicing

A.Higher Availability

B.Lower Cost

C.Lower latency

D.Larger Bandwidth