Network+ Chapter 3 Power Words - Defined

Network+ Chapter 3 - Cabling and Topology

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1. Bandwidth: Transmission scheme in which the entire bandwidth, or data-carrying capacity, of a medium is used to carry a single digital pulse, or signal, between multiple users.
2. Bus Topology: A linear configuration where all network devices are placed on a single length of cable
3. Cladding: The transparent material, usually glass, that surrounds the core of an optical fiber, causing any dispersed light to be reflected back into the central core.
4. Coaxial Cable: A transmission line in which one conductor is a wire at the center of the cable.
5. Core: The central light-carrying part of an optical fiber; it has an index of refraction higher than that of the surrounding cladding.
6. Crosstalk: Noise or interference caused by electromagnetic coupling from one signal path to another.
7. Electromagnetic Interference (EMI): The interference in signal transmission or reception caused by the radiation of electrical and magnetic fields.
8. RJ 45: The standard connector used for Ethernet, T1, ISDN, or 4-pair UTP cables.
9. RJ 11: The standard connector used for 2-pair telephone wiring. It comes in both UTP or untwisted cable.
10. RS 232: It formally defines signals connecting between a DTE such as a computer terminal.
11. Physical Topology: The interconnected structure of a local area network.
12. Plenum: A pressurized housing containing a fluid (typically air) at positive pressure.
13. Ring Topology: A network configuration in which device connections create a circular data path.
14. BNC connector: A miniature quick connect/disconnect radio frequency connector used for coaxial cable.
15. EMI: A naturally occurring phenomena when the electromagnetic field of one device disrupts, impedes or degrades the electromagnetic field of another device by coming into proximity with it
16. BD 25: Refers to the capacity of a Blu-ray disc.
17. BD 9: Refers to the capacity of a Blu-ray disc.
18. Fault tolerance: The property that enables a system to continue operating properly in the event of the failure of some of its components.
19. Mesh topology: A local network topology in which the infrastructure nodes connect directly.
20. Segment: The act or practice of splitting a computer network into subnetworks.
21. UTP: A ubiquitous type of copper cabling used in telephone wiring and local area networks.
22. SMF: A file extension for an audio file in the MIDI format.
23. STP:  Creates a single path over a network, preventing any loops from occurring.
24. Signaling topology: The mapping of the actual connections between the nodes of a network, as evidenced by the path that the signals take when propagating between the nodes. 
25. Star Topology: Every node connects to a central network device, like a hub, switch, or computer.
26. Star-Bus topology: All nodes are individually connected to a central connection point, like a hub or a switch.
27. Star-Ring topology:  The nodes are connected to the central hub or router. 
28. MMF: A type of optical fiber with a relatively thick inner core that allows light rays to propagate along multiple modes, or physical paths, through the fiber.