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Glosario
ADSL:
Asymmetric Digital Subscriber Line. It is a
digital line for accessing Internet at high
speed.
Antivirus:
An application that detects and removes
any computer virus and other malicious
programs.
DHCP (Dynamic Host Configuration
Protocol):
A protocol that allows the hosts of a
network to obtain the IP configuration
settings automatically.
DNS (Domain Name System):
Domain Name Server. The server transla-
tes a domain name (the name of a machi-
ne) into its corresponding IP address.
Encryption or cryptography:
The science that enables one to encode
and decipher information using techniques
that make it possible to exchange messa-
ges in a safe and secure way, because they
can only be read by the persons to whom
they are addressed.
Ethernet cable:
A cable that is used to transmit data at
high speed in Local Area Networks (LAN).
Firewall:
A hardware or software element that is
used in a computer network to control
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and manage the network traffic, either
allowing it or rejecting it, according to the
network policies defined by the organi-
sation that manages the network. It may
block the establishment of the connection
to the Internet.
Fixed / Dynamic IP addressing:
It indicates how Movistar assigns the IP
address to your line. If every time that
your router starts a session it can be
assigned a different IP address, this indi-
cates that your service includes dynamic
addressing, which is the default type of
addressing. However, if you are always
assigned the same IP address, then your IP
addressing service is fixed or static.
Microfilter:
It is an element which filters the ADSL
signal and separate it from the phone
signal, so that it is possible to make phone
calls and surf at the same time without
interruptions or drops.
PCMCIA:
It is a hardware element that is normally
used in laptop computers to expand their
capacities. The most common case is that
of wireless network adapters, which are of
this type.
Ports:
Physical or logical connections for sending
or receiving data. It allows a program to
communicate via the network.
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