-----------1
Cisco Device Operation
Commands (show, debug)
Infrastructure (NVRAM, Flash, Memory & CPU, File system, config reg)
Operations (file transfers, Password recovery, SNMP, Accessing the device, Security, Security [password])

------------2
General Networking Theory
OSI Models
General Routing Concepts (Split horizon, Link state, difference between switching and routing, Summarization, Link state vs. Distance vector, loops, Tunneling)
Standards (802.x, cable specs, protocol limitations)
Protocol Mechanics (Windowing/ACK, fragmentation, MTU, handshaking, termination)

------------3
Bridging and LAN Switching
Transparent (IEEE/DEC Spanning tree, Translational, IRB, ACLs, MISTP)
SRB (SRT/LB, SRT, DLSw, RSRB, ACLs)
LAN Switching (Trunking, VTP, DISL, VLANS, Fast Ether Channel (FEC), CDP, CGMP)
Security (VACL, RACL, Private VLANS)
MLS

------------4
IP
Addressing (CIDR, subnetting, ARP, NAT, HSRP)
Services (DNS, BOOTP, DHCP, ICMP)
Applications (telnet, FTP, TFTP)
Transport (IP fragmentation, sockets, ports)
ACLs
IPv6 (Basic)

------------5
IP Routing
OSPF (I -Design: areas, Virtual links, stub, NSSA, ABR/ASBR redistributions, media dependencies, external vs. internal, Summarization. II - Operation: DR, BDR, adjacencies, LSA types, link state database, SPF algorithm, authentication)

-------------6
BGP( I -Design: Peer Groups, Route Reflectors, Confederations, Clusters, Attributes, AS. II - Operation: Route Maps, Filters, Neighbors, decision algorithm, IBGP, EBGP)

------------7
EIGRP (Metrics, mechanics, & design)
IS-IS (Metrics, mechanics, & design)
ACLs (distribute lists, route maps, policy routing, redistribution, route tagging)
DDR (dial backup)
IGRP
RIP
RIPv2

-----------8
QoS
Fancy Queuing
PoS and IP precedence
CoS
Weighted RED
WRR/queu scheduling
Shaping vs. Policing (rate limiting)/CAR
NBAR
802.1X
DSCP

------------9
WAN
ISDN (LAPD, BRI/PRI framing, signaling, mapping, NI1s, dialer map, interface types, B/D channel, channel bonding)
Frame Relay (LMIs, DLCI, PVC, framing, traffic shaping, FECN, BECN, CIR, DE, Mapping, compression)
ATM (PVC/SVC, AAL, SSCOP, UNI/NNI, ILMI, Cell format, QoS, RFC 1483, PNNI, mapping)
Physical Layer (Synchronization, SONET, T1, E1, encoding)
Leased Line Protocols (HDLC, PPP, Async & modems, compression)
PoS
DPT/SRP

------------10
LAN
Data Link Layer (addressing, 802.2)
Ethernet/FE/GE (encapsulation, CSMA/CD, topology, speed, controller errors, limitations)
Wireless/802.11b

------------11
Multiservice
Voice/Video (H323)
codecs
SS7
RTP
RTCP
SIP
MPLS

------------12
IP Multicast
IGMP/CGMP (IGMPv1, IGMPv2, Designated Querier)
Addressing (Group addresses, Admin Group, Link-loc

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