W


WAN (wide area network)

A data communications network that serves users across a broad geographical area. WANs often use transmission devices such as modems or CSUs/DSUs to carry signals over leased lines or over common carrier lines.



WAP (wireless access point)

A network device that offers connectivity between wireless clients and (usually) a wired portion of the network.



Web server

A server that runs an application and makes the contents of certain directories on that server, or other servers, available to clients for download, via a protocol such as HTTP.



WEP (Wired Equivalent Privacy)

Data encryption method used to protect the transmission between 802.11 wireless clients and Access Points. WEP security has come under scrutiny as it uses an insufficient key length and provides no automated method for distributing the keys.



WiFi

A voluntary standard that manufacturers can adhere to, which aims to create compatibility between wireless devices. WiFi is an abbreviation of the phrase WIreless Fidelity.



window flow control

A flow control method in which the receiving host buffers the data it receives and holds it in the buffer until it can be processed. After the data is processed, an acknowledgment is sent to the sender.

See also [dynamic window]
See also [static window]


WINS (Windows Internet Name Service)

A NetBIOS name-to-IP address resolution service that runs on Windows server platforms.



WINS database

A dynamically built database of NetBIOS names and IP addresses that is used by WINS.



Wireless Channel

Term used to refer to the band of frequency used for wireless communications. Each IEEE wireless standard specifies the channels that can be used.



wire crimper

A tool that is used to create networking cables. The type of wire crimping tool used depends on the cable being made.



wireless networking

Networking that uses any unbound media, such as infrared, microwave, or radio waves.



WISP (Wireless Internet Service Provider)

A service provider that specializes in offering users wireless access to the Internet, often including hotspot access.



WLAN (Wireless LAN)

A local area network created using wireless transmission methods such as radio or infrared instead of traditional wired solutions.



workstation

A client computer on a network that does not offer any services of its own but uses the services of the servers on the network.



WPA (Wi-Fi Protected Access)

Data encryption method used on 802.11 wireless LANs. WPA is an industry-supported standard designed to address security shortcomings of WEP.





    Network+ Exam Cram 2
    Network+ Exam Cram 2
    ISBN: 078974905X
    EAN: N/A
    Year: 2003
    Pages: 194

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