Answers to the Chapter 8 "Do I Know This Already?" Quiz 419
19
Which of the following routed protocols can be used on the 700 router: IGRP, IPX, RIP,
IP, OSPF, and static routes?
You can use IPX and IP.
20
When configuring the 700 series router for a DHCP server, how do you set up the default
gateway for the client?
You don't. The key here is to recognize that when the 700 is declared as the DHCP server
(set dhcp server), the router hands out an address when it sets itself as the default
gateway. All DHCP requests from the Ethernet will be resolved by the 700 series router.
Answers to the Chapter 8 "Do I Know This Already?" Quiz
1
Name the Layer 2 of X.25.
The Layer 2 is LAPB.
2
Name the Layer 3 of X.25.
The Layer 3 is X.25.
3
In X.25, what are the two possible roles that a router can play?
The roles are DCE and DTE.
4
What is the function of a Packet Assembler/Disassembler (PAD) in an X.25 network?
The PAD is a device that collects data from asynchronous terminals and outputs that data
encapsulated inside X.25 packets.
5
The addressing scheme in X.25 is known as what kind of address?
It is known as X.121 addressing.
6
List the parts of the addressing scheme from Question 5.
The parts are DNIC and NTN.
7
How many digits constitute each of the parts of the address from Question 5?
The DNIC has four digits, and the NTN has 811 digits.
8
From where are the addresses used in configuring X.25 obtained?
They are obtained from the PDN provider.
9
List the possible types of circuits available in an X.25 network deployment.
The circuit types include PVC, SVC incoming only, SVC outgoing only, and SVC
two-way.