o_194vq34qgtp417n414cr173812r2a.pdf

flow control, TCP/IP 387
EIGRP routing, configuring, 357, 365-366
electrical threats, 271
Electronics Industry Alliance (EIA), 36
eliminating routing loops, 155-156
employees, wireless security risks, 257
enable password command, 55
enable password password command, 169
enable secret command, 55
encapsulating protocols, 323
Encapsulating Security Payload (ESP), 325
encapsulation, 322
HDLC, 329-330
OSI models, 16
encapsulation ppp command, 334
encapsulation process, 16
encoding channels, wireless encoding
channels, 255
encryption, 257, 322
encryption algorithms, VPNs, 323
Enhanced Interior Gateway Routing
Protocol. See EIGRP
Enterprirse Architecture, 10
Enterprise Branch Architecture, 10
Enterprise Campus Architecture, 10
Enterprise Data Center Architecture, 10
Enterprise Edge Architecture, 10
Enterprise Teleworker Architecture, 10
environmental threats, 271
erase startup-config command, 51
erasing configuration files, Cisco IIOS, 51
error detection, LCP, 332
error recovery, TCP/IP, 24
ESP (Encapsulating Security Payload), 325
establishing VPN connections, 322
authentication, 325
encryption algorithms, 323
hashes, 324-325
IPsec Security Protocols, 325
tunneling, 323
Ethernet, 16
addresses, 38
current Ethernet technologies, 36
framing, 39
Gigabit Ethernet, 37
legacy Ethernet technologies, 34-36
CSMA/CD, 35
overview, 33-34
physical layer, role of, 40
switches, 37-38
UTP cabling, 36-37
EtherType field, 74
EUI-64 format, IPv6, 141-142
examinations
exam day information, 377
post-exam information
career options, 379-380
receiving your certificate, 379
retesting, 380
examination commands, Cisco IOS, 50
exit interface parameter, configuring static
routes, 193-194
extended ACLs, 280
extended numbered ACLs,
configuring, 284
deny FTP from subnets, 285
deny only Telnet from subnets, 285-286
Extensible Authentication Protocol
(EAP), 264
Exterior Gateway Protocols (EGP), 150
external threats, 271
External Type 1 (E1), 240
External Type 2 (E2), 240
F
FC (Feasibility Condition), 223
FCC (Federal Communications
Commission), 253-254
FD (Feasible Distance), 223
Feasible Successor (FS), 223
FECN (forward explicit congestion notification),
Frame Relay, 339
FHSS (Frequency Hopping Spread
Spectrum), 255
file naming conventions, IOS, 182-183
file systems, default file systems, 180
File Transfer Protocol (FTP), 15
firewall ACLs, configuring, 359, 372-373
firewalls, 273
flash memory, 162
flow control, TCP/IP, 25