APC Snap Server 2200 Specifications Page 185

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Default gateway The network address of the gateway is the hardware or
software that bridges the gap between two otherwise
unroutable networks. It allows data to be transferred among
computers that are on different subnets.
Degraded A RAID state caused by the failure or removal of a disk
drive.
DHCP (dynamic host configuration
protocol)
Dynamic Host Configuration Protocol (DHCP) is a
communications protocol that lets network administrators
centrally manage and automate the assignment of Internet
Protocol (IP) addresses on a computer network. Each
system that connects to the Internet/intranet needs a unique
IP address. The Snap Server can be configured to perform
as a DHCP server and assign IP addresses with a single
subnet.
Directory A virtual folder used to organize files. Also called a folder.
Disaster Recovery A strategy that allows a company to return to normal
activities after a catastrophic interruption. Through failover
to a parallel system or by restoration of the failed system,
disaster recovery restores the system to its normal operating
mode.
Disk A rigid platter, usually constructed of aluminum or mylar,
with a magnetic surface that allows the recording of data,
that is stored inside the drive.
DNS (domain name server) The server that maintains a mapping of all host names and
IP addresses. Normally this mapping is maintained by the
system administrator, but some servers support dynamic
mappings.
Domain In Windows NT and Windows 2000, a domain is a set of
network resources such as users and groups of users. A
domain may also include multiple servers on the network. To
gain access to these network resources, the user logs in to
the domain.
Domain name The ASCII name that identifies the domain for a group of
computers within a network.
Term Definition
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