NETWORK+ Terms B's

Question 1

In ISDN, a 64Kbps channel that carries data.

See also D (delta) channel.

Answer 1

B (bearer) channel

Question 2

A network segment that acts as a trunk between other network segments. ______ typically are high-bandwidth implementations such as fiber-optic cable.

Answer 2

backbone

Question 3

A document or plan that defines what type of ______ are made, when, and what data
is backed up.

Answer 3

backup schedule

Question 4

The width of the range
of electrical frequencies, or how
many channels the medium can support.
\_\_\_\_\_\_\_ correlates to the
amount of data that can traverse the
medium at one time, but other factors
determine the maximum speed
supported by a cable .

Answer 4

bandwidth

Question 5

A term applied to any medium that can carry only a single data signal at a time. Compare with broadband.

Answer 5

baseband

Question 6

A measurement of performance
of a device or system for
the purposes of future comparison.
\_\_\_\_\_ is a common server
administration task.

Answer 6

baselining

Question 7

The speed or rate of
signal transfer. ___ ____ bandwidth
is measured in cycles per second, or
Hertz (Hz).

Answer 7

baud rate

Question 8

A network wiring closet typically
housing wiring distribution equipment
and hardware. Two common
network

Answer 8

BDF (Building Distribution Frame):
BDFs are the Intermediate
Distribution Frame (IDF) and the
Main Distribution frame (MDF).

Question 9

In a wireless network,
\_\_\_\_\_ refers to the continuous
transmission of small packets (beacons)
that advertise the presence of
a base station (access point).

Answer 9

beaconing

Question 10

A test to see the number of received bits of
a data stream that has changed due
to noise, interference, or other distortion.

Answer 10

BERT (Bit-Error Rate Test)

Question 11

Used between gateway hosts on the
Internet. \_\_\_\_\_   \_\_\_\_  \_\_\_\_ examines the routing table, which contains a list of known
routers, the addresses they can
reach, and a cost metric associated
with the path to each router so that
the best available route is chosen.
It communicates between the
routers using TCP.

Answer 11

BGP (Border Gateway Protocol.)

Question 12

A base 2 numbering system
used in digital signaling. It uses only
the numbers 1 and 0.

Answer 12

binary

Question 13

The process of associating

a protocol with a NIC.

Answer 13

binding

Question 14

The science and technology
of measuring and analyzing
biological data. \_\_\_\_\_ is used
for security purposes to analyze and
compare characteristics such as
voice patterns, retina patterns, and
hand measurements.

Answer 14

biometrics

Question 15

A basic set of instructions that a

device needs to operate.

Answer 15

BIOS (Basic Input/Output System)

Question 16

An electronic digit used in the
binary numbering system. ____ is a
contraction of the terms binary and
digit.

Answer 16

bit

Question 17

A total loss of electrical

power.

Answer 17

blackout

Question 18

A low-cost, short-range
RF technology designed to replace
many of the cords used to connect
devices. It uses 2.4GHz RF
and provides transmission speeds up
to 24Mbps.

Answer 18

Bluetooth

Question 19

A family of connectors
typically associated with thin coaxial
cabling and 10Base2 networks. \_\_\_
connectors use a twist-and-lock
mechanism to connect devices to
the network.

Answer 19

BNC (Bayonet Neill Concelman)

connector

Question 20

\_\_\_\_\_\_ is a TCP/IP protocol
used by a network device to
obtain an IP address and other network
information such as server
address and default gateway.

Answer 20

BOOTP

Question 21

Describes any medium that has physical constraints, such as coaxial, fiber-optic,
and twisted pair. Compare with
unbound medium.

Answer 21

bound medium

Question 22

Identifies the status of ports and
bridges across the network. \_\_\_\_
are simple data messages exchanged
between switches. They contain
information on ports and provide
the status of those ports to other
switches.

Answer 22

BPDU (Bridge Protocol Data Unit)

Question 23

An ISDN digital communications line
that consists of three independent
channels: two B channels each at
64Kbps and one D channel at
16Kbps. \_\_\_\_  \_\_\_\_is often referred
to as 2B+D.

Answer 23

BRI (Basic Rate Interface)

Question 24

A device that connects and
passes packets between two network
segments that use the same communications
protocol. \_\_\_\_ operate
at the data link layer of the OSI
model; filters, forwards, or
floods an incoming frame based on
the packet’s MAC address.

Answer 24

bridge

Question 25

A list of MAC addresses that a bridge keeps and uses when it receives packets. The bridge uses the ____ ____ ____ to determine which segment the destination address is on before it sends the packet to the next interface or drops the packet (if it is on the same segment as the sending node).

Answer 25

bridging address table

Question 26

A communications strategy that uses analog or digital signaling over multiple communications channels.

Answer 26

broadband

Question 27

A packet-delivery system in which a copy of a packet is transmitted to all hosts attached to the network.

Answer 27

broadcast

Question 28

An undesirable condition in which broadcasts become so numerous that they bog down the flow of data across the network.

Answer 28

broadcast storm

Question 29

``` A device that you can use to combine the benefits of both routers and bridges. Its common usage is to route routable protocols at the network layer of the OSI model and to bridge nonroutable protocols at the data link layer. ```

Answer 29

brouter

Question 30

A short-term decrease in the voltage level, usually caused by the startup demands of other electrical devices.

Answer 30

brownout

Question 31

The ___ ____ ____ ___ is the MAC address of the wireless access point (AP).

Answer 31

BSSID (Basic Service Set | Identification)

Question 32

An area of memory in a device used to temporarily store data before it is forwarded to another device or location.

Answer 32

buffer

Question 33

A linear LAN architecture in which all devices connect to a common cable, called a bus or backbone.

Answer 33

bus topology

Question 34

``` The ____ ____ is typically associated with telephony systems. It is used to test and access the phone line using clip wires that attach to the phone cable. ```

Answer 34

butt set

Question 35

A set of bits (usually 8) that | operate as a unit to signify a character.

Answer 35

byte