D

Index

[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W]

data link framing
     on WANs 2nd
data link layer protocols
data transmission
     electrical interference
     error recovery
     over LANs 2nd 3rd
         cabling
         cabling:STP
         cabling:twisted pair
         cabling:UTP
         connectors 2nd
         digital transmission 2nd
     packets
decapsulation
     in IP routing process
decimal numbering system 2nd
     converting to binary 2nd 3rd 4th 5th 6th 7th 8th
    IP addresses
         converting to binary IP addresses 2nd 3rd
decimal values
     converting to hexadecimal and binary values 2nd
decryption 2nd
default gateways
denial of service attacks
depletion of IP addresses
deploying VLANs
     reasons for 2nd
destination address field (Ethernet)
destination IP address field
devices
     broadcast domains
     DSLAMs
     Frame Relay switch
    Frame Relay switches
         connecting to 2nd
     hubs 2nd
         congestion 2nd
     LAN switches
         full-duplex transmission
         reducing congestion 2nd 3rd 4th 5th 6th
     modems 2nd 3rd
         analog
         DSL
         operation 2nd
         transmission speeds
     routers
         forwarding to WAN links
    switches
         autonegotiation 2nd
         creating VLANs 2nd 3rd
         flooding 2nd
         forwarding decisions
         learning MAC addresses 2nd
         MAC address table
         supporting multiple speeds
         trunking 2nd 3rd
         trunks
     WAN switches
DHCP
     in IP routing process 2nd
diagrams
     clouds
digital transmission 2nd 3rd
directly connected subnets 2nd
disk drives
DIX Ethernet
     versus 802.3
DLCI (data-link connection identifier)
DLCIs 2nd
     Inverse ARP messages 2nd
DMZs 2nd
DNS
     authoritative DNS servers
     domains
     name format
     name resolution process 2nd 3rd 4th 5th 6th
     root DNS servers
DNS (Domain Name System) 2nd 3rd
DNS (Domain Name System) servers
DNS servers
domains
dotted decimal format
dotted decimal notation
downloading files 2nd 3rd 4th 5th
DSL
     co-location
     connecting to Internet
     modems
     transmission speeds
     variants
DSLAM (DSL access multiplexer)
DSLAMs
dynamic routes
     routing updates 2nd
dynamically assigned port numbers