Chapter 13

"Do I Know This Already?"

1.	D
2.	A
3.	A, C, D
4.	D
5.	A
6.	B
7.	A
8.	D
9.	D
10.	A, B, C, D, E, F
11.	C

Q&A

DHCP traffic flow:

- A client broadcasts a DHCP DISCOVER message for IP settings

- The server responds with an OFFER

- The client picks an OFFER and responds with a REQUEST

- The client issues a gratuitous ARP to verify that no one else is using the address

To configure DHCP for a device with an interface assigned an IP address of 192.168.1.1/24:

Router(config)#ip dhcp pool 1
Router(config-dhcp)#network 192.168.1.0 /24
Router(config-dhcp)#default-router 192.168.1.1
Router(config-dhcp)#lease 3
Router(config-dhcp)#dns-server 10.1.1.1

Answer:

Router(config)#interface type number
Router(config-if)#ip address dhcp

Answer:

Router(config-if)#ip helper-address address

NTP (UDP 37), TACACS (UDP 49), DNS (UDP 53), DHCP (UDP 67 and 68), TFTP (UDP 69), NetBIOS name service (UDP 137), and NetBIOS datagram service (UDP 138)

server, relay, and client

Answer:

Router(config)#ip forward-protocol udp 5000

Answer:

Step 1.	Create a pool of addresses to assign to clients.
Step 2.	Assign a network to the pool.
Step 3.	Specify the lease with default of one day.
Step 4.	Identify the DNS server.
Step 5.	Identify the default gateway.