Chapter 3; Network Topologies and Technologies

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Across
  1. 5. 100 Mbps Ethernet using baseband signaling that runs Category 5+ UTP cabling using two of four wire pairs. It is the most commonly used Ethernet variety.
  2. 10. The weakening of a signal as it travels across network media
  3. 12. ____ ratio; A ratio that measures the amount of valid signal compared with the amount of noise in a network transmission.
  4. 14. Carrier Sense Multiple Access with Collison____; An access control method used by Wi-Fi networks in which an acknowledgement is required for every packet sent to avoid most possibilities of collision.
  5. 15. (MU) MIMO; a technology that uses a process called ‘beamforming’ to send data to multiple clients simultaneously
  6. 18. ____ topology; The path that data travels between computers on a network. The most common logical topologies are switched, bus, and ring.
  7. 19. extended ____ topology;
  8. 20. __ __ mode; A wireless mode of operation typically used in small or temporary installations. There’s no central device, so the data travels through one device to another to reach the destination.
Down
  1. 1. A type of signaling where each bit of data is represented by a pulse of electricity or light that takes over the medium’s entire bandwidth. Common to LAN technologies.
  2. 2. 100 Mbps Ethernet using baseband signaling over two strands of fiber-optic cabling.
  3. 3. 10 Gigabit ethernet using baseband signaling that runs over four pairs of Category 6a UTP cabling
  4. 4. point-to-____ topology; a topology in which a central device communicates with two for more other devices, with all communication going through the central device. It’s often used in WANs.
  5. 6. The result of electricity bouncing off the end of a cable and back in the other direction. It causes corruption of data as the bouncing signal collides with signals behind it
  6. 7. Cyclic ____ Check; The error-checking code in an Ethernet frame’s trailer that is calculated pre and post-departure; if the calculation on the destination device doesnt match the calculation in the frame, it indicates the data was altered.
  7. 8. A type of signaling that moves data through mediums in waves rather than discrete pulses of electricity. Particular frequencies represent a ‘channel’ of data which allows them to stack and carry multiple streams of data on a single wire.
  8. 9. the amount of information in a network transmission that isn’t part of the application data. This could include headers, acknowledgements, and retransmissions.
  9. 11. ____ mode; An operational mode for Wi-fi networks in which wireless stations connect through a wireless access point before they can begin communicating with other devices.
  10. 13. The actual application-to-application speed data transfer speed
  11. 16. The result of two or more devices on the same medium transmitting simultaneously when CSMA/CD is the media access method in use.
  12. 17. ____ topology; A network topology in which each device is connected to every other device, providing multiple pathways in the event of a device or cable failure.