1. You may have noticed that the DHCP request that Phil-F¢s iMac sends is a broa

Question

1. You may have noticed that the DHCP request that Phil-F¢s iMac sends is a broadcast packet, sent to Ethernet address: ff:ff:ff:ff:ff:ff, and IP address: 255.255.255.255. But when his iMac sends the DHCP request it has already selected an IP address and it knows which server the selected offer came from.

Why does it send the request as a broadcast packet?

A. This way all DHCP servers on the network will get a copy of it, so they can withdraw other offers that were not selected.

B. All DHCP servers must get a copy of the request so they can update their mappings

C. DHCP is a distributed protocol and the broadcast packets ensures that servers are synchronized

D. There is a mistake in the implementation; the DHCP request should be a unicast packet.

2. A client receives a DHCP offer from a DHCP server in response to its discover message. After receiving this offer, it issues a request to the server and the server responds with an acknowledgment of that offer. If the DHCP server crashes after this point, but before the lease expires, the client will lose its network connection because the DHCP server will not be able to route the client-F¢s packets out of the subnet.

A. True

B. False

Explanation / Answer

1.) Option (a) is correct. This way all DHCP servers on the network will get a copy of it, so they can withdraw other offers that were not selected. And put back the offered IP addresses back to the pool.

2.) False. First of all a router is used to route the packet not a DHCP server. And once an IP address is acknowledged. It will work fine until it's expiration period.

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