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试卷名称:思科认证640-802模拟试卷17

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How does a DHCP server dynamically assign IP addresses to hosts?

A．Addresses are permanently assigned so that the host uses the same address at all times．

B．Addresses are assigned for a fixed period of time． At the end of the period, a new request for an address must be made, and another address is then assigned．

C．Addresses are leased to hosts． A host will usually keep the same address by periodically contacting the DHCP server to renew the lease．

D．Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement．

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