Motorola MC17 Product Reference Manual page 156

Glossary - 8 MC17/MC17T Product Reference Guide
transmissions where erroneous packets are not retransmitted. IP provides the routing mechanism. TCP/IP is a routable
protocol, which means that all messages contain not only the address of the destination station, but the address of a
destination network. This allows TCP/IP messages to be sent to multiple networks within an organization or around the
world, hence its use in the worldwide Internet. Every client and server in a TCP/IP network requires an IP address, which
is either permanently assigned or dynamically assigned at startup.
TFTP. (Trivial File Transfer Protocol) A version of the TCP/IP FTP (File Transfer Protocol) protocol that has no directory or
password capability. It is the protocol used for upgrading firmware, downloading software and remote booting of diskless
devices.
TKIP. (Temporal Key Integrity Protocol) A wireless encryption protocol that periodically changes the encryption key, making
it harder to decode.
Transmission Control Protocol/Internet Protocol. See TCP/IP.
TLS. (Transport Layer Security) TLS is a protocol that ensures privacy between communicating applications and their users
on the Internet. When a server and client communicate, TLS ensures that no third party may eavesdrop or tamper with
any message. TLS is the successor to the Secure Sockets Layer (SSL).
Trivial File Transfer Protocol. See TFTP.
U
UDP. (User Datagram Protocol) A protocol within the IP protocol suite that is used in place of TCP when a reliable delivery
is not required. For example, UDP is used for real-time audio and video traffic where lost packets are simply ignored,
because there is no time to retransmit. If UDP is used and a reliable delivery is required, packet sequence checking and
error notification must be written into the applications.
W
Warm Boot. A warm boot restarts the mobile computer by closing all running programs. All data that is not saved to flash
memory is lost.
WAP. (Wireless Application Protocol) A set of specifications, developed by the WAP Forum, that lets developers using
Wireless Markup Language build networked applications designed for handheld wireless devices. WAP was designed
to work within the constraints of these devices: a limited memory and CPU size, small, monochrome screens, low
bandwidth and erratic connections.
WEP. Wired-Equivalent Privacy protocol was specified in the IEEE 802.11 standard to provide a WLAN with a minimal level
of security and privacy comparable to a typical wired LAN, using data encryption.
WPA. Wi-Fi Protected Access is a data encryption specification for 802.11 wireless networks that replaces the weaker WEP.
It improves on WEP by using dynamic keys, Extensible Authentication Protocol to secure network access, and an
encryption method called Temporal Key Integrity Protocol (TKIP) to secure data transmissions.
WPA2. Wi-Fi Protected Access 2 is an enhanced version of WPA. It uses Advanced Encryption Standard instead of TKIP.