单项选择题
A.Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
B.Addresses are permanently assigned so that the hosts uses the same address at all times.
C.Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.
D.Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease.
多项选择题 When a DHCP server is configured, which two IP addresses should never be assignable to hosts? （）
单项选择题 Refer to the exhibit.Explain how the routes in the table are being affected by the status change on interfaceEthernet0.（）
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?（）