CCNA Cisco Certified Network Associate Study Guide - FTP Server

716 Glossary
WAN wide area network: Is a designation used to connect LANs together
across a DCE (data communications equipment) network. Typically, a WAN
is a leased line or dial-up connection across a PSTN network. Examples of
WAN protocols include Frame Relay, PPP, ISDN, and HDLC.
wildcard Used with access-list, supernetting, and OSPF configurations.
Wildcards are designations used to identify a range of subnets.
windowing Flow-control method used with TCP at the Transport layer of
the OSI model.
WinSock Windows Socket Interface: A software interface that makes
it possible for an assortment of applications to use and share an Internet
connection. The WinSock software consists of a Dynamic Link Library
(DLL) with supporting programs such as a dialer program that initiates the
connection.
workgroup switching A switching method that supplies high-speed
(100Mbps) transparent bridging between Ethernet networks as well as highspeed
translational bridging between Ethernet and CDDI or FDDI.
X.25 An ITU-T packet-relay standard that defines communication
between DTE and DCE network devices. X.25 uses a reliable Data-Link
layer protocol called LAPB. X.25 also uses PLP at the Network layer. X.25
has mostly been replaced by Frame Relay.
ZIP Zone Information Protocol: A Session-layer protocol used by Apple-
Talk to map network numbers to zone names. NBP uses ZIP in the determination
of networks containing nodes that belong to a zone. See also: ZIP
storm and zone.
ZIP storm A broadcast storm occurring when a router running AppleTalk
reproduces or transmits a route for which there is no corresponding zone
name at the time of execution. The route is then forwarded by other routers
downstream, thus causing a ZIP storm. See also: broadcast storm and ZIP.
zone A logical grouping of network devices in AppleTalk. See also: ZIP.