Appendices
Reference
Three pages to keep open while you study and to review the night before the exam.
- Appendix A
Subnetting Cheat Sheet
Powers of two, the full /8 to /32 prefix table, the magic-number method, private and special ranges, and five worked problems.
- Appendix B
Command Reference
Every IOS command used in the guide, grouped by task: device setup, interfaces, VLANs, EtherChannel, STP, routing, OSPF, HSRP, NAT, DHCP, security and the show commands that verify each one.
- Appendix C
Numbers to Memorize
Ports, administrative distances, STP and OSPF values, FHRP comparison, syslog levels, DSCP markings, VLAN and ACL ranges, IPv6 prefixes and wireless numbers.