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Glossary
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
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.
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.
Socket:
A plug that is usually installed on the wall
that enables the telephone cable to be
connected.
SSID (Service Set Identifier):
A code included in all the packages of
a wireless network so that they can be
identified as being part of that network.
An SSID thus enables one to make a
distinction between the different wireless
networks that exist.
TCP/IP (Transmission Control Protol/
Internet Protocol):
It is a set of network protocols upon which
the Internet is based and which allow data
to be transmitted between computer
networks.
URL (Uniform Resource Locator):
It is a Uniform Resource Identifier (URI)
that specifies where an identified resource