Appendix A
Answers to the “Do I Know This Already?” Quiz Questions
Chapter 1
1. b and d. When two PCs are in the same subnet and communicate with each other, frames are sent directly to the destination PC, and ARP is used to get the MAC address of the destination PC.
2. a and c. When two PCs are in different subnets and communicate with each other, frames are sent to a default gateway, and ARP is used to get the MAC address of the default gateway.
3. b. You can verify the IP address configured on a router interface by using the show ip interface command.
4. d. The correct order is discover, offer, request, acknowledge (DORA).
5. b. To forward DHCP discover messages to a DHCP server in a different subnet, you use the ip helper-address command. ...
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