ICND2 200-101 Exam Cheat Sheet

Below are several items that are highly recommended to remember for the Exam.





Range of Private IP addresses

10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255

IPv4 Address Classes
Class Address Ranges
Class A - 1.0.0.0 to 126.0.0.0
Class B - 128.0.0.0 to 191.255.0.0
Class C - 192.0.1.0 to 223.255.255.0
Class D* - 224.0.0.0 to 239.255.255.255
Class E* - 240.0.0.0 to 255.255.255.255

Powers of 2 Binary Chart

128 64 32 16 8 4 2 1

Spanning Tree Default Interface Costs

100 for 10Mbps
19 for 100Mbps
4 for 1Gbps
2 for 10Gbps

System Message Severity Levels for Syslog
Spanning-Tree Modes
Rapid PVST+
802.1w
802.1d
PVST+