Syngress - Eleventh Hour Network+ Exam N10-004 Study Guide (11 ...

188 Index
Network troubleshooting, 164–165
methodology, 155–156
OSI model in, 163
NICs. See Network interface card
Non-facility associated signaling
(NFAS), 44
nslookup command, 157
Null sessions, 130
O
One-factor authentication, 132
Open shortest path first (OSPF), 102
Open system interconnection (OSI)
model, 58, 73, 108, 156
data link layer, 157
characteristics and functions of,
74
mapping of network devices, 38
network layer, 75, 157
characteristics and function of,
76
physical layer, 74, 156
presentation layer, characteristics
and function of, 77
session layer, characteristics and
function of, 77
transport layer, 157
in troubleshooting, 163
Organizational units (OU),
characteristics of, 135
Oscilloscope, 24, 162
OSI model. See Open system
interconnection model
P
Packet
components of, 90
switching methods, 108
Packet-filtering firewall, 122
Packet level firewall, 48
Packet shaping, 149
Passive attacks, 66
Passive hubs, 38
Password authentication protocol
(PAP), 136
Password policies, 132
pathping command, 159
Peer-to-peer network topology, 4
decentralized, 5
Per-packet authentication, 138
Personal area network (PAN), 15
Physical address, 75
Physical layer
functions of, 156
specifications, 74
troubleshooting, 165
Physical network diagrams, 146
ping command, 157
Plain old telephone service (POTS),
114
Point-to-multipoint topology, 11
Point-to-point topology, 11
Point-to-point tunneling protocol
(PPTP), 127
Port access entity (PAE), 65
Ports
authentication, 41
mirroring, 41
troubleshooting, 166
Post office protocol (POP), 84
POTS. See Plain old telephone service
Power over Ethernet (PoE), 41
Presentation layer, 77
troubleshooting, 168
Primary rate interfaces (PRIs), 43, 44,
109
Private addressing, 95
benefits of, 96
Private networks, 107
Private virtual dial-up network
(PVDN), 7
Protected extensible authentication
protocol (PEAP), advantages
of, 138–139
Protocols, 2
analyzer, 124
stacks, 76
translation, 77
Proxy RADIUS, 134
Proxy server, 49, 50, 123
Public networks, 107
Q
Quality of service (QoS), 148–149
R
Radio frequency (RF), 55
behaviors, 55
characteristics and facts, 57
communications, 57
Radio frequency interference (RFI), 21
RADIUS. See Remote authentication
dial-in user service
Realm, 134
Registered jack (RJ) connector. See RJ
connector
Remote access
policies, 133
services, 133
VPN, 7
Remote authentication dial-in user
service (RADIUS), 65, 133–134
Repeater, 37
troubleshooting, 165
Replay attacks, 130
RF. See Radio frequency
Ring topologycharacteristics of, 10–11
RJ-45 connector, 26
RJ connectors, 20, 30
Root server, 135
route command, 159–160
Routers
characteristics of, 46
integrating static and dynamic, 47
switching, 47
troubleshooting, 166
Routing, 76, 98
determination process, 100
static and dynamic, 101
table entries, 99
utilities, 102
Routing information protocol (RIP),
85, 101
Roving analysis port (RAP), 41
S
Satellites, 13
based network, 116
characteristics of, 115
Security integration in network
devices, 47
Security zones
characteristics of, 125
DMZs, 125
DNS, 126
FTP servers, 126
HTTP servers, 125
intrusion detection, 126
Service profile identifiers (SPIDs), 109
Service set identifier (SSID), 61
Session layer, 77
troubleshooting, 167
Shared-key authentication, 64
Shielded twisted pair (STP), 20, 32
Simple mail transfer protocol
(SMTP), 84, 168