Table of Contents
Advertisement
Glossary
Network protocol
The network protocol is the standard via which different PCs exchange data in a net-
work. A connection can only be established between PCs in a network if they all use the
same protocol. The
TCP/IP
network protocol is the most extensive network protocol,
which is also used for connections to the Internet. This must be set up on each PC from
which a network connection is to be established.
Protocol
A protocol describes the agreements for communicating on a network. It contains rules
for opening, administering and closing a connection, as well as about data formats,
time frames and handling possible errors. Communications between two applications
require different protocols at various levels, e.g. the
TCP/IP
protocols for the Internet.
Provider
A provider (Internet Service Provider) offers access to the Internet for a fee.
RJ
Registered Jack. Standardised connection, also known as a modular jack.
Router
A router directs data packets from one local area network (LAN) to another via the fast-
est route. A router enables the connection between networks of different network tech-
nologies and this is performed on the basis of a common protocol. For example, it can
link a local network with WiMAX technology to the Internet.
RSSI
Received Signal Strength Indication. Characteristic value for the signal strength of radio
connections, used by communication devices for the automatic selection of a suitable
channel.
Server
A server makes services available to other network components (clients). The term
"server" is often used to refer to a PC. However it can also mean an application that pro-
vides a particular service such as DNS,
DHCP
or a Web service.
SMTP
Simple Mail Transfer Protocol. The SMTP protocol is a
TCP/IP
protocol and regulates the
exchange of electronic post on the Internet. Your
Provider
provides you with access to
an SMTP server.
Subnet
A subnet divides a network into smaller units.
Subnet mask
The subnet mask determines how many parts of the IP addresses of a network represent
the network number and how many parts represent the network component number.
If the subnet mask in a network is 255.255.255.0, for example, this means that the first
64
Advertisement
Table of Contents
