Chapter 5: Fundamentals of IP

Logical addressing refers to addresses that can be used regardless of the _________

type of physical networks used

A protocol that defines _____ and ________ is considered to be a network layer, or Layer 3, protocol

routing

logical addressing

The end goal of a routing protocol is

To fill the routing table with all known destination groups and with the best route to reach each group

T/F: If you put two network cards in a computer, and use them at the same time, they'll both have the same IP address

False

T/F: All IP addresses in the same group must not be separated by a router

True

IP addresses separated by a router must be in ________ groups

different

Classful addressing refers to thinking about IP addresses as having the following parts: ___________

network, subnet, host

Classless addressing refers to thinking about IP addresses as having the following parts: _________

part upon which routing is based

host

The part of an IP address upon which routing is based, often the combination of network and subnet portions, is known in classless networking as the ________

prefix

A router's Ethernet interface on a particular subnet is known as the _________ for that subnet

default gateway

The time between a router losing a route and finding a working replacement route is called ___________

convergence time

Three basic steps for propagating routes among routers.

1. add routes for each directly connected subnet
2. send neighbors all routes in routing table
3. after learning a new route from a neighbor, add the route to the table, with the next-hop router typically being the neighbor from which the route was learned

The routing protocol message sent by a router to neighboring routers, containing its current routing table, is called a _________

routing update

What command displays the contents of the ARP cache on most PC operating systems?

arp -a

Servers typically use (statically/dynamically) assigned IP addresses

statically

ICMP

Internet Control Message Protocol

Ping uses the _______ protocol to send a message called a _______

ICMP

ICMP echo request