問題文
A technician watches the exchange between a switch that has just been powered on and the machines on the wire that hand out addresses. Which statement is correct?
選択肢
- A DHCPOFFER and a DHCPREQUEST are both aimed at the client that asked, and a server that loses the race waits for its reservation to fall out of date instead.
- A DHCPOFFER and a DHCPREQUEST are both thrown out widely, and a client that hears two of the first begins the whole exchange again, so the race is run twice.
- A DHCPREQUEST reaches the client that asked and nobody else, while a DHCPOFFER is thrown out widely so that the servers on the wire learn which addresses are already spoken for by somebody.
- A DHCPOFFER reaches the client that asked and nobody else, while a DHCPREQUEST is thrown out widely so that the servers that lost can take back what they set aside.