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] [X] [Z]

DAS (dual attached stations)
data access
     troubleshooting checklist 2nd
data flow control
     LLC (Logical Link Control) standards (IEEE 802 standards)
data transmission rates 2nd
data-link layer (OSI reference model) 2nd
     LLC (Logical Link Control) layer
     MAC (Media Access Control) layer
databases
     partitioning
     replication
datagram packet switching 2nd
dB(decibels)
     wireless antennas
decimal-to-binary value conversion chart
dedicated local bandwidth
default gateways 2nd 3rd
     versus gateways 2nd
Destination Host Unreachable error message (ping utility)
DFS (Distributed File Systems)
     Windows servers 2nd
DHCP (Dynamic Host Configuration Protocol) 2nd
     dynamic addresses
     scopes
DHCP (Dynamic Host Control Protocol) networks services
     configuring
     removing
diagnostic utilities
     ARP
         switches list table
     dig 2nd
     help facility, accessing
     ifconfig 2nd
     ipconfig 2nd
         switches list table
         usage examples 2nd
     list of 2nd
    nbtstat
         switches list table 2nd
    netstat
         information headings 2nd
         netstat-a utility 2nd
         netstat-e utility 2nd
         netstat-r utility
         netstat-s utility 2nd 3rd
         switches list table
     nslookup 2nd
         switches list table
    ping
         Destination Host Unreachable error message
         DNS
         Expired TTL error message
         loopback addresses
         Request Timed Out error message
         switches list table
         troubleshooting example 2nd
         Unknown Host error message
     trace route 2nd
         commands list table 2nd
         network congestion
     winipcfg
         usage examples
dial-up Internet access [See POTS/PSTN]
dial-up Internet connections
     troubleshooting 2nd
dialog modes
     full-duplex
         switches
     half-duplex
     simplex
differential backups
dig diagnostic utility 2nd
directional antennas
directories
    Linux
         security
    NetWare
         security 2nd
disaster recovery
     backup strategy comparison table 2nd
    backups
         cleaning tape drives
         labeling tapes 2nd
         new tapes
         offsite storage 2nd
         verifying
     cold spares
     cold swapping
     differential backups
     full backups
     hot spares
     hot swapping
     incremental backups 2nd
     recovery sites
         cold sites
         hot sites 2nd
         warm sites
    tape rotation backups
         GFS (Grandfather, Father, Son) backup rotation
     warm swapping
disk duplexing
disk mirroring
disk quotas
     Windows servers
disk striping with parity [See RAID 5 fault tolerance]
distance vector routing protocols
     IPX RIP (Routing Information Protocol) 2nd
     RIP (Routing Information Protocol)
     routing tables
     versus link state routing protocols
distributed computing network models
Distributed Print Services (Novell)
distributions
     Linux
DNS (Domain Name Servers)
     TCP/IP protocol suite
DNS (Domain Name Service)
     ping utility
DNS (Domain Name Service) protocol 2nd 3rd
     HOSTS files 2nd
DNS (Domain Name System) networks services
DNS server addresses
documenttation
     solution documentation (troubleshooting steps/procedures) 2nd
domain controllers
     Windows servers as
DSL
     remote network connections
DSL Internet access [See Internet access;xDSL]
DSL Internet connections
     troubleshooting 2nd
DSSS (direct sequence spread spectrum)
     chips
dynamic addressing
dynamic routing environments 2nd
     distance vector routing protocols 2nd
         IPX RIP (Routing Information Protocol) 2nd
         rotuing tables
         versus link state routing protocols
    link state routing protocols
         LSA (link state advertisements)
         NLSP (NetWare Link State Protocol)
         OSPF (Open Shortest Path First)
         versus distance vector routing protocols