NETWORK+ Terms F's

Question 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.

Answer 1

failover

Question 2

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

Answer 2

Fast Ethernet

Question 3

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

Answer 3

fault tolerance

Question 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.

Answer 4

FDDI (Fiber Distributed Data

Interface)

Question 5

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

Answer 5

FDM (Frequency-Division

Multiplexing)

Question 6

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

Answer 6

FHSS (Frequency Hopping Spread

Spectrum)

Question 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.

Answer 7

fiber-optic cable

Question 8

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

Answer 8

Fibre Channel

Question 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.

Answer 9

firewall

Question 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.

Answer 10

flow control

Question 11

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

Answer 11

FM (Frequency Modulation)

Question 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).

Answer 12

FQDN (fully qualified domain name)

Question 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.

Answer 13

fragment-free switching

Question 14

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

Answer 14

frame

Question 15

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

Answer 15

Frame Length field

Question 16

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

Answer 16

Frame Type field

Question 17

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

Answer 17

frequency

Question 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.

Answer 18

FTP (File Transfer Protocol)

Question 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.

Answer 19

F-type connecter

Question 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.

Answer 20

full backup

Question 21

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

Answer 21

full duplex