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Flashcards in NETWORK+ Terms F's Deck (21):
1

The automatic switching
from one device or system to another.
Servers can be configured in a
failover configuration so that if the
primary server fails, the secondary
server automatically takes over.

failover

2

The IEEE 802.3u
specification for data transfers of up
to 100Mbps over twisted-pair cable.
See also 100BaseFX, 100BaseT, and
100BaseTX.

Fast Ethernet

3

The capability of a
component, system, or network to
endure a failure.

fault tolerance

4

A high-speed data transfer
technology designed to extend
the capabilities of existing LANs by
using a dual-ring topology and a
token-passing access method.

FDDI (Fiber Distributed Data
Interface)

5

A technology that
divides the output channel into multiple
smaller-bandwidth channels,
each of which uses a different frequency
range

FDM (Frequency-Division
Multiplexing)

6

A multiple access method
of transferring radio signals in the frequency-
hopping code division multiple
access (FH-CDMA) scheme.

FHSS (Frequency Hopping Spread
Spectrum)

7

Also known as
fiber optics or optical fiber, a physical
medium that can conduct modulated
light transmissions. Compared
with other transmission media, fiberoptic
cable is more expensive, but it
is not susceptible to EMI or
crosstalk, and it is capable of high
data rates and increased distances.

fiber-optic cable

8

A technology that
defines full gigabit-per-second data
transfer over fiber-optic cable.
Commonly used with storage area
network (SAN) implementations.

Fibre Channel

9

A program, system, device,
or group of devices that acts as a
barrier between one network and
another. Firewalls are configured to
enable certain types of traffic to pass
while blocking others.

firewall

10

A method of controlling
the amount of data transmitted
within a given period of time.
Different types of flow control exist.
See also dynamic window and static
window.

flow control

11

One
form of radio modulation, this communication
technique transmits
information over a radio wave.

FM (Frequency Modulation)

12

The entire domain name. It specifies
the name of the computer, the
domain in which it resides, and the
top-level DNS domain (for example,
www.marketing.quepublishing.com).

FQDN (fully qualified domain name)

13

A switching
method that uses the first 64
bytes of a frame to determine
whether the frame is corrupted. If
this first part is intact, the frame is
forwarded.

fragment-free switching

14

A grouping of information
transmitted as a unit across the network
at the data link layer of the
OSI model.

frame

15

In a data
frame, the field that specifies the
length of a frame.

Frame Length field

16

In a data frame,
the field that names the protocol
being sent in the frame.

Frame Type field

17

The number of cycles
of an alternating current signal over
a unit of time. Frequency is
expressed in hertz.

frequency

18

A protocol
that provides for the transfer
of files between two systems. FTP is
part of the TCP/IP suite and operates
at Layer 7 of the OSI model.

FTP (File Transfer Protocol)

19

A screw-type
connector used with coaxial cable.
In computing environments, it is
most commonly used to connect
cable modems to ISP equipment or
incoming cable feeds.

F-type connecter

20

A backup in which
files, regardless of whether they
have been changed, are copied to
the backup medium. In a full backup,
the files’ archive bits are reset.

full backup

21

A system in which data
simultaneously transmits in two
directions. Compare with half
duplex.

full duplex