Ch 3 Keyterms

Question 1

Bandwidth

Answer 1

The maximum amount of data that goes through the cable per second

Question 2

Bus topology

Answer 2

Uses a single cable that connects all of the computers in a line.

Question 3

BNC connector

Answer 3

Bayonet style connection, was the most popular cable used back in the day.

Question 4

Category (CAT) ratings

Answer 4

Used to help network installers get the right cable for the right network. CAT ratings are officially rated in megahertz indicating the highest frequency the cable can handle.

Question 5

Cladding

Answer 5

One of the 4 components of a fiber optic cable

Question 6

Coaxial cable

Answer 6

Contains a central conductor wire(usually copper) surrounded by an insulating material, which, in turn, is surrounded by a braided metal shield.

Question 7

Core

Answer 7

A fiber optic cable has four components: the glass fiber itself (the core)

Question 8

Crosstalk

Answer 8

Unwanted transfer of signals between communication devices.

Question 9

DB-25

Answer 9

A 25-pin female - rather than male - DB type connector

Question 10

DB-9

Answer 10

The most common serial pot, 9-pin male D-subminiature

Question 11

Electronic interference EMI

Answer 11

A phenomenon where one electromagnetic field interferes with another resulting in the distortion of both fields

Question 12

F-connector

Answer 12

A connector for coax

Question 13

Fault tolerance

Answer 13

Is the property that enables a system to continue operating properly in the event of the failure of some of its components

Question 14

Fiber optic cable

Answer 14

Transmits light rather then electricity making it attractive for both high EMI areas and long distance transmissions

Question 15

Fully meshed topology

Answer 15

Every computer connects directly to every other computer

Question 16

Hybrid topology

Answer 16

Any form of networking technology that combines a physical topology with a signaling topology

Question 17

Institute of Wlecrtical and Electonics Engineers (IEEE)

Answer 17

Defines industry-wide standards that promote the use and implementation of technology.

Question 18

IEEE 1284

Answer 18

Commuter sets the standards for parallel communication.

Question 19

Insulating jacket

Answer 19

One of the 4 components of a fiber optic cable.

Question 20

Logical topology

Answer 20

How the signals travel electronically. Also called the signaling topology.

Question 21

Mesh topology

Answer 21

Every computer connects to every other computer via two or more routes.

Question 22

Model distortion

Answer 22

A unique problem to multimode fiber optics

Question 23

Multimode fiber

Answer 23

A fiber optic cable that uses LEDs

Question 24

Network technology

Answer 24

A practical application of a topology and other critical technologies that provides a method to get data from one computer to another on a network

Question 25

Network topology

Answer 25

That’s way that cables and other pieces of hardware connect to one another

Question 26

Ohm Rating

Answer 26

A relative measure of resistance (or more precisely, characteristic impedance) on the cable.

Question 27

Partially Meshed topology

Answer 27

Network where at least two machines have redundant connections.

Question 28

Physical topology

Answer 28

How we separate the cables physically

Question 29

Plenum

Answer 29

Electrical cable that is laid in the plenum spaces of buildings.

Question 30

Point-to-multipoint topology

Answer 30

Where a single system acts as a common source through which members of the point-to-multipoint network converse.

Question 31

Point-to-point topology

Answer 31

Networks two computers directly together with no need for a central device of any kind.

Question 32

Polyvinyl chloride (PVC)

Answer 32

Provides no significant fire protection, creating a lot of smoke and noxious fumes.

Question 33

Radio Grade rating (RG)

Answer 33

Coax cable rating to provide a quick reference for the different types of coax

Question 34

Ring topology

Answer 34

Connects all computers on the network with a ring of cable

Question 35

Riser

Answer 35

A third type of fire rating that designates the proper cabling to use for vertical runs between floors of a building

Question 36

RJ-11

Answer 36

A type of connectors used for telephones that supports up to two pairs.

Question 37

RJ-45

Answer 37

A type of connector supports up to four-pair of wires.

Question 38

RA-232

Answer 38

RS-232 or recommended standard upon which all serial communication takes place on your PC, dates from 1969 and has t substantially changes in around 40 years.

Question 39

Shielded twisted pair STP

Answer 39

Consists of twisted pairs of wires surrounded by shielding to protect them from EMI

Question 40

Signaling topology

Answer 40

How we separate the cables from physical cables and how the signals travel electronically. Also called logical topology.

Question 41

Single mode fiber (SMF)

Answer 41

A fiber optic cable that uses lasers

Question 42

Star topology

Answer 42

Uses a central connection box for all the computers on the network and provide a huge benefit by offering fault tolerance.

Question 43

Star-bus topology

Answer 43

One of two hybrid topologies? That eventually lost market share.

Question 44

Unshielded twisted pair (UTP)

Answer 44

The most common type of network cabling.