Network Cabling & Hardware

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Across
  1. 4. You are making Ethernet drop cables using Cat5e cables and RJ45 connectors. You need to remove the plastic coating over the cable to expose the individual wires. Which tool should you use?
  2. 6. A situation in which an electrical signal takes a path other than the intended path. In the case of twisted pair wiring, a short means that a signal sent on one wire arrives on a different wire.
  3. 10. A transceiver that is similar to a GBIC but is smaller in size. Sometimes called a mini-GBIC.
  4. 12. This is a technology that allows a single cable to provide both data and electrical power to devices such as wireless access points, IP cameras, and VoIP phones. Sometimes refered to as "POE"
  5. 16. A switch capable of reading Layer 3 (network) addresses and routing packets between subnets.
  6. 18. You want to measure the voltage, amps, and ohms of various devices. Which tool should you use?
  7. 19. A unique identifier burned into the ROM of every Ethernet NIC.
  8. 20. When connecting two devices using twisted-pair cabling, the pinout determines which wire goes to which pin of the connector.
  9. 21. These permit circuits to be arranged and rearranged by plugging and unplugging respective patch cords on a mounted hardware assembly.
  10. 22. A 10-Gigabit small form-factor pluggable transceiver that is similar to an SFP in size but is used for 10-Gigabit networking.
  11. 26. The main device that broadcasts a wireless network.
  12. 27. A multi-port bridge that performs filtering based on MAC addresses and provides additional features not found in a bridge.
  13. 30. At which OSI model layer does a media converter operate?
  14. 31. A device that connects one group of wires to another through a system of metal pegs.
  15. 34. A frame or rack that is used to interconnect and manage telecommunication wiring in a building. It functions like an old-time telephone switchboard, where operators used connecting wires to route telephone calls. MDF can also refer to the room that houses the traditional MDF along with networking patch panels.
  16. 36. A device that connects two or more network segments or subnets.
  17. 37. A condition that results from a cut in the wire preventing the original signal from reaching the end of the wire. An open circuit is different from a short in that the signal stops with an open circuit. Electricity cannot flow because the path is disconnected.
  18. 38. What creates a visual representation of physical components along with a clearly defined set of principles and procedures?
  19. 39. A two-lead semiconductor light source that emits visible light when an electric current passes through it.
  20. 40. These are used to switch between different network media.
Down
  1. 1. A transceiver that converts electrical signals to optical signals and vice versa in fiber optic and Ethernet systems. (GBIC)
  2. 2. This joins several light wavelengths (colors) onto a single strand of fiber by using different wavelengths of laser light.
  3. 3. A hardware device that connects a computer to the network medium. It is responsible for converting binary data into a format that can be sent on the network medium. (NIC)
  4. 5. The loss of signal strength from one end of a cable to the other. This is also known as dB loss.
  5. 7. A protocol that hosts use to discover the MAC address of a device from its IP address.
  6. 8. Which hardware device links multiple networks and directs traffic between networks?
  7. 9. A protocol that hosts use to find the IP address of a host with a known MAC address.
  8. 11. You need to replace a fiber optic cable that's connecting two switches together. You inspect the existing cable and determine that it uses LC connectors. You also notice that the cable's ferrule has a slight slant to it. Which polish grade should you use to replace the existing cable?
  9. 13. A part of a building that provides a pathway for the airflow needed by heating and air conditioning systems, such as above a dropped ceiling or below a raised floor.
  10. 14. An external signal that interferes with normal network communications. Common sources of EMI include nearby generators, motors (such as elevator motors), radio transmitters, welders, transformers, and fluorescent lighting. When working with the radio frequency spectrum, this is known as radio frequency interference (RFI).
  11. 15. An unwanted transfer of signals between communication channels.
  12. 17. This is the line that marks the boundary between the telecommunications (telco) equipment and your private network or telephone system.
  13. 23. A network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
  14. 24. At which OSI layer does a router operate to forward network messages?
  15. 25. An area that connects multiple floors where cables can be run. This area cannot be a plenum space.
  16. 28. A quad (4-channel) small form-factor compact hot-pluggable transceiver that is also used for data communication applications.
  17. 29. A device that connects two (or more) media segments on the same subnet. It filters traffic between both segments based on the MAC address in the frame.
  18. 32. The central connecting point of a physical star. It uses a logical bus topology.
  19. 33. Which network component connects a device to transmission media and allows the device to send and receive messages?
  20. 35. A host wants to send a message to another host that has an IP address of 192.168.80.157, but it does not know the destination device's hardware address. Which protocol can be used to discover the MAC address?