1.1 Glossary

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This document uses the following terms:

broadcast: A style of resource location or data transmission in which a client makes a request to all parties on a network simultaneously (a one-to-many communication). Also, a mode of resource location that does not use a name service.

database server discovery service: A service that allows applications to discover the existence of database instances.

dedicated administrator connection (DAC): A special TCP endpoint that was introduced in Microsoft SQL Server 2005. DAC provides a special diagnostic connection for administrators when standard connections to the server are not possible.

endpoint: A client that is on a network and is requesting access to a network access server (NAS).

Internet Protocol version 4 (IPv4): An Internet protocol that has 32-bit source and destination addresses. IPv4 is the predecessor of IPv6.

Internet Protocol version 6 (IPv6): A revised version of the Internet Protocol (IP) designed to address growth on the Internet. Improvements include a 128-bit IP address size, expanded routing capabilities, and support for authentication and privacy.

little-endian: Multiple-byte values that are byte-ordered with the least significant byte stored in the memory location with the lowest address.

multicast: A style of resource location or a data transmission in which a client makes a request to specific parties on a network simultaneously.

named pipe: A named, one-way, or duplex pipe for communication between a pipe server and one or more pipe clients.

Transmission Control Protocol (TCP): A protocol used with the Internet Protocol (IP) to send data in the form of message units between computers over the Internet. TCP handles keeping track of the individual units of data (called packets) that a message is divided into for efficient routing through the Internet.

unicast: A style of resource location or a data transmission in which a client makes a request to a single party.

Virtual Interface Architecture (VIA): A high-speed interconnect that requires special hardware and drivers that are provided by third parties.

MAY, SHOULD, MUST, SHOULD NOT, MUST NOT: These terms (in all caps) are used as defined in [RFC2119]. All statements of optional behavior use either MAY, SHOULD, or SHOULD NOT.