多项选择题
What are two characteristics of Frame Relay point-to-point subinterfaces?()
A.They create split-horizon issues B.They require a unique subnet within a routing domain C.They emulate leased lines D.They are ideal for full-mesh topologies E.They require the use of NBMA options when using OSPF
单项选择题 Which PPP subprotocol negotiates authentication options?()
单项选择题 What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?()
单项选择题 What is the first 24 bits in a MAC address called?()