User Manual
Broadband Blaster 8012-V
18
Digital
- Having discrete values, for example the data represented by binary numbers (0’s
and 1’s). Computers communicate using digital data.
DMT
- Discrete Multitone — A method of modulating digital signals over an analog
carrier.
DMZ
- Demilitarized Zone — a computer host or small network inserted as a "neutral zone"
between a company's private network and the outside public network. It prevents
outside users from getting direct access to a server that has company data. The DMZ is
a subnetwork (subnet) that may sit between firewalls or off one leg of a firewall. It is
also an optional and more secure approach to a firewall and effectively acts as a proxy
server as well.
DNS
- Domain Name System — This allows you to specify a symbolic name, a meaningful
and easy-to-remember “handle,” instead of an IP address. The DNS is the way that
Internet domain name is located and translated into numeric Internet Protocol
addresses.
DNS Server
- A server that contains both the English and numerical addresses of all
computers connected to the Internet. When you specify an e-mail or IP address using
the “English” domain name, the DNS server will return the corresponding numeric
address.
Domain Name
- The Internet address or the URL of a website.
Downstream
- Data transfer from the telecommunication network to the customer’s
premises.
Driver
- A program that a computer uses to control the operation of a peripheral device,
such as a keyboard, modem, monitor, card, or cable.
DSL
- Digital Subscriber Line — A technology that transforms ordinary telephone lines into
high-speed digital lines for fast Internet access. This technology uses a digital coding
technique to get large capacity out of your existing phone line without interfering with
regular services — you can talk on your phone and at the same time surf the Web. Thus
DSL provides simultaneous Internet and voice/fax capabilities over a single telephone
line without any interference.
DSLAM
- DSL Access Multiplexer — A network device at a telephone company’s office
that receives signals from multiple customer DSL connections and puts the signal on a
high-speed backbone line using multiplexing.
Dynamic IP address
- See
DHCP
.
