多项选择题
A.Send periodic updates regardless of topology changes.
B.Send entire routing table to all routers in the routing domain.
C.Use the shortest-path algorithm to the determine best path.
D.Update the routing table based on updates from their neighbors.
E.Maintain the topology of the entire network in its database.
单项选择题 Which command displays CPU utilization?（）
单项选择题 On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）
单项选择题 Refer to the exhibit. What is the meaning of the output MTU 1500 bytes?（）