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Wireless PC Card
47
Peer-to-Peer Networking – Allows users to share local resources
between PCs without needing an access point or router.
Ping (Packet Internet Groper) – An Internet utility used to determine whether
a particular IP address is online. It is used to test and debug a network by
sending out a packet and waiting for a response.
Plug-and-Play – The ability of a computer system to configure expansion
boards and other devices automatically without requiring the user to turn off
the system during installation.
Port – A pathway into and out of the computer of a network device such as
a switch or router. For example, the serial and parallel ports on a personal
computer are external sockets for plugging in communications lines, modems,
and printers.
PPPoE (Point to Point Protocol over Ethernet) – A method used mostly by
DSL providers for connecting personal computers to a broadband modem for
Internet access. It is similar to how a dial-up connection works but at higher
speeds and quicker access.
Wireless PC Card
48
PPTP (Point-to-Point Tunneling Protocol) – A protocol (set of communication
rules) that allows corporations to extend their own corporate network through
private “tunnels” over the public Internet. Effectively, a corporation uses a
wide-area network as a single large local area network. A company no longer
needs to lease its own lines for wide-area communication but can securely
use the public networks. This kind of interconnection is known as a virtual
private network (VPN).
Print Server – A hardware device that enables a printer to be located
anywhere in the network.
RIP (Routing Information Protocol) – A simple routing protocol that is part of
the TCP/IP protocol suite. It determines a route based on the smallest hop
count between source and destination. RIP is a distance vector protocol that
routinely broadcasts routing information to its neighboring routers and is
known to waste bandwidth. AppleTalk, DECnet, TCP/IP, NetWare, and
VINES all use incompatible versions of RIP.
RJ-11 (Registered Jack-11) – A telephone connector that holds up to six
wires. The RJ-11 is the common connector used to plug a telephone into
a wall.
RJ-45 – A connector similar to a telephone connector that holds up to eight
wires, used for connecting Ethernet devices.