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G
LOSSARY
IEEE 802.11
B
A wireless standard that supports wireless communications in the 2.4 GHz
band using Direct Sequence Spread Spectrum (DSSS). The standard
provides for data rates of 1, 2, 5.5, and 11 Mbps.
IEEE 802.11
G
A wireless standard that supports wireless communications in the 2.4 GHz
band using Orthogonal Frequency Division Multiplexing (OFDM). The
standard provides for data rates of 6, 9, 12, 18, 24, 36, 48, 54 Mbps. IEEE
802.11g is also backward compatible with IEEE 802.11b.
IEEE 802.11
N
A wireless standard that supports wireless communications in the 2.4 GHz
band using Orthogonal Frequency Division Multiplexing (OFDM). The
standard provides for data rates of 27, 54, 81, 108, 162, 216, 243, 270,
300 Mbps. IEEE 802.11n is also backward compatible with IEEE 802.11b/g.
DDNS (D
YNAMIC
D
OMAIN
N
AME
S
YSTEM
)
The capability of assigning a fixed host and domain name to a dynamic
Internet IP Address.
DHCP
Dynamic Host Configuration Protocol: Provides a framework for passing
configuration information to hosts on a TCP/IP network. DHCP is based on
the Bootstrap Protocol (BOOTP), adding the capability of automatic
allocation of reusable network addresses and additional configuration
options.
DMZ (D
EMILITARIZED
Z
ONE
)
A Demilitarized Zone allows one local host to be exposed to the Internet for
a special-purpose service such as Internet gaming or videoconferencing.
DNS (D
OMAIN
N
AME
S
YSTEM
)
An Internet Service that translates the names of websites into IP
addresses.
D
OMAIN
N
AME
A descriptive name for an address or group of addresses on the Internet.
DSL (D
IGITAL
S
UBSCRIBER
L
INE
)
A technology that allows data to be sent or received over existing
traditional phone lines.
