Sun Microsystems Sun Fire X4150 - Manual (Page 137)

Glossary 121
N
namespace In the tree structure of a Lightweight Directory Access Protocol (LDAP)
directory, a set of unique names from which an object name is derived and
understood. For example, files are named within the file namespace, and
printers are named within the printer namespace.
network file system
(NFS) A protocol that enables disparate hardware configurations to function together
transparently.
Network Information
Service (NIS) A system of programs and data files that UNIX systems use to collect, collate,
and share specific information about machines, users, file systems, and
network parameters throughout a network of computer systems.
network interface card
(NIC) An internal circuit board or card that connects a workstation or server to a
networked device.
network management
station (NMS) A powerful workstation with one or more network management applications
installed. The NMS is used to remotely manage a network.
network mask A number used by software to separate the local subnet address from the rest
of a given Internet Protocol (IP) address.
Network Time Protocol
(NTP) An Internet standard for Transmission Control Protocol/Internet Protocol
(TCP/IP) networks. NTP synchronizes the clock times of networked devices
with NTP servers to the millisecond using Coordinated Universal Time (UTC).
node An addressable point or device on a network. A node can connect a computing
system, a terminal, or various peripheral devices to the network.
nonmaskable interrupt
(NMI) A system interrupt that is not invalidated by another interrupt.
nonvolatile memory A type of memory that ensures that data is not lost when system power is off.
nonvolatile random
access memory
(NVRAM) A type of random access memory (RAM) that retains information when system
power is off.