CCNA 3: Mod 1 – Introduction to Classless Routing
Acronyms
OSPF
100
What is Open
Shortest Path First?
EIGRP
200
What is Enhanced
Interior Gateway
Protocol?
VLSM
300
What is Variable
Length Subnet
Masking?
Potpourri
VLSM
Commands
This command
allows the use of the
“all zero” network?
What is Subnetting a
Subnet?
This subnet mask
would be appropriate
for use when a
subnet contains only
2 hosts.
These routing
protocols do not
support VLSM.
What is
255.255.255.252?
Use this subnet mask
for a group of 46
hosts.
This command is
used to clear a
routing table.
What is
255.255.255.192?
Use this subnet mask
for a group of 1012
hosts.
What is clear ip
route?
Use this command to
display the routing
protocol timers.
VLSM is often
called this.
What are RIPv1 and
IGRP (and EGP)?
The two types of
routes that an
administrator must
enter.
What are Static and
Default routes?
CIDR
400
What is Classless
InterDomain
Routing?
500
CCNA
1-1
What is
255.255.252.0?
VLSM masks are
usually described
using this notation.
Use this subnet mask
for a group of 419
hosts.
What is the “Slash”
notation? (i.e. /27)
What is
255.255.254.0?
This term refers to
Use this subnet mask
CCNA 3: Switching Basics and Intermediate Routing v3.0
RIP
Uses hops as a
metric.
What is RIP v2?
What are Both RIP
v1 & RIP v2?
What is ip subnetzero?
What is show ip
protocols?
v1-v2-Both?
This version of RIP
supports VLSM.
RIP v1 sends updates Supports classful
to this address.
routing.
What is
255.255.255.255?
What are Both RIP
v1 & RIP v2?
The type of
encryption with
which RIP v2 can
authenticate its
updates.
Sends updates as a
broadcast.
What is RIP v1?
What is MessageDigest 5 (MD5)?
Use this command to RIP v2 sends updates Sends updates
set a particular IP
to this address.
using a class D
address as the default
address.
destination.
What is 224.0.0.9?
What is RIP v2?
What is ip route
0.0.0.0 0.0.0.0 <ip
address>?
Use this command to Routing protocols
Supports classless
Copyright  2003, Cisco Systems, Inc.
What is a Cisco
Certified Network
Associate?
the ability to
for a group of 29
advertise multiple
hosts.
networks or subnets
in one advertisement. What is
255.255.255.248?
What is
Aggregation?
set a particular
network as the
default destination.
What is ip defaultnetwork <network
address>?
that do not include
subnet masks in their
updates are called
this.
routing.
What is RIP v2?
What is a Classful
routing protocol?
Final Jeopardy
The summary address for the following networks. (Don’t forget the mask!)
192.114.36.0
192.114.37.0
192.114.38.0
192.114.39.0
What is 192.114.36.0/22?
1-2
CCNA 3: Switching Basics and Intermediate Routing v3.0
Copyright  2003, Cisco Systems, Inc.