Flashcards in NETWORK+ Terms Q-R's Deck (26):
the strategies used to manage and
increase the flow of network traffic.
QoS features enable administrators
to predict bandwidth use, monitor
that use, and control it to ensure
that bandwidth is available to the
applications that need it.
QoS (quality of service)
standard that employs a client/server
model to authenticate remote
network users. Remote users are authenticated using a challenge-andresponse
mechanism between the
remote-access server and the
RADIUS (Remote Authentication
Dial-in User Service
A method to
store data on multiple hard drives,
enabling the overlapping of I/O
operations. The RAID levels offer
either fault-tolerance or performance
RAID (Redundant Array of
A RAID configuration that
employs data striping but that lacks
redundancy because no parity information
is recorded (see RAID 5). As
a result, RAID 0 offers no fault tolerance,
but it does offer increased
performance. Requires a minimum
of two disks.
A fault-tolerant method
that uses disk mirroring to duplicate
the information stored on a disk.
Also called disk duplexing when the
two drives in a RAID 1 array are
connected to separate disk controllers.
A fault-tolerant method
that uses disk striping with distributed
parity. Striping is done across
the disks in blocks.
Also called RAID 1/0. A
RAID configuration in which stripe
sets (RAID 0) are mirrored (RAID
1). This combination provides the
fault-tolerant aspects of RAID 1 and
the performance advantages of
A protocol, part of the
TCP/IP suite, that resolves MAC
addresses to IP addresses. Its relative
ARP resolves IP addresses to
MAC addresses. RARP resides on
the network layer of the OSI model.
RARP (Reverse Address Resolution
Windows service that enables access
to the network through remote connections.
RAS (Remote Access Service)
presentation layer protocol that supports
traffic between a Windows
Terminal Client and Windows
RDP (Remote Desktop Protocol)
actual legal restrictions with legal
having physical control of a remote
computer through software.
A node or computer
connected to a network through a
remote connection. Dialing in to
the Internet from home is an example
of the remote node concept
A device that regenerates
and retransmits signals on a network.
Repeaters usually are used to
strengthen signals going long distances.
A system that requests
the resolution of a name to an IP
address. This term can be applied to
both DNS and WINS clients.
To transfer data from
backup media to a server. The
opposite of backup.
process by which standards relating
to the Internet, the TCP/IP suite,
and associated technologies are created,
commented on, and approved
RFC (Request for Comments)
Designations for the
coaxial cable used in thin coaxial
networks that operate on the
An authorization provided
to users that allows them to perform
certain tasks. The network administrator
generally assigns rights.
Slightly different from but often
used with the term permissions
A protocol that uses hop count as a
routing metric to control the direction
and flow of packets between
routers on an internetwork.
RIP (Routing Information Protocol)
used with telephone systems. Can
have up to six conductors.
used with twisted-pair cable. Can
support eight conductors for four
pairs of wires.
The entire path between
two nodes on a network.
A device that works at the
network layer of the OSI model to
control the flow of data between
two or more network segments
An algorithm for public-key
cryptography. Can be used for
encryption purposes. RSA is used as
a secure solution for e-commerce.