Class 4 - Router, Routing protocols

Question 1

located at any gateway where one network meets another

a level 3 switch can perform routing functions

Answer 1

Router

Question 2

used to connect computers or a computer to a network

Answer 2

Broadband router

Question 3

Creates a wireless signal

Answer 3

Wireless router

Question 4

sits in the middle of a LAN network

Answer 4

Core router

Question 5

The process of moving a packet of data from a source to a destination

• different to bridging (connecting 2 networks)
• usually performed by a router

Answer 5

Routing

Question 6

the router learns about remote networks from neighbour networks or an administrator -> builds a routing table -> routers update each other about all the networks they know

Answer 6

Static Routing

Question 7

functions as static routing but is more robust (allows routing tables to change as the routes change)
use RIP and OSPF

Answer 7

Dynamic routing

Question 8

the ability of routers to learn of routing changes

Answer 8

routing protocols

Question 9

a distance vector routing protocol, created by Cisco for routing multiple protocols across small and medium sized Cisco networks
recognises assignment of different autonomous systems and automatically summarises at network class boundaries
can load traffic on equal or unequal metric cost paths

Answer 9

IGRP (Interior Gateway Routing Protocol)

Question 10

distance vector routing + link state routing protocols

requires Cisco networks

Answer 10

EIGRP (Enhanced Interior Gateway Router Protocol)

Question 11

uses access lists:

• to restrict contents of routing updates
• to provide traffic flow control (restrict access)
• to provide security for the network

Answer 11

Access Control Protocols