Test your basic knowledge |

Wired And Wireless Networks

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What type of cable should be used as part of a fire code for a building?






2. The sending of two or more frames of data in a single transmission.






3. When you pick up your wireless phone - your computer drops network connectivity. What could be the cause of the problem?






4. You could also use electromagnetic shielding on devices that might be emanating an electromagnetic field. This could be done on a small scale by shielding the single device - or on a larger scale by shielding an entire room - perhaps a server room. T






5. Medium dependent interface.






6. The signal degrades to such a point that it cannot be interpreted by the destination host.






7. What is the maximum speed supported by 802.11b?






8. 128- -192- - and 256-bit






9. 568B = Orange - 568A = Green - BOGB = Blue






10. This is a disturbance that can affect electrical circuits - devices - and cables due to electromagnetic conduction and possibly radiation.






11. Used to connect like devices to each other - for example - a computer to another computer - or a switch to another switch.






12. Transmits light (photons) instead of electricity - and this light is transmitted over glass or plastic.






13. Occurs when there is measured interference between two pairs in a single cable - measured on the cable end nearest the transmitter.






14. If you want to connect a computer directly to another computer without using a switch - you use a _____________.






15. A cable with a larger fiber core - capable of carrying multiple rays of light. This type of cable is used for shorter distance runs - up to 600 meters.






16. Multi-mode fiber (The Medium) - Half duplex: 400 meters; full duplex: 2 km - Single-mode fiber (The Medium) - Full duplex: 10km






17. What is the most common cable used today?






18. Used to extend the coverage of a wireless network.






19. What is the most secure encryption used in wireless networks?






20. To test a cable - what tool would you use?






21. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






22. 568B = White/blue - 568A = White/blue - BOGB = White/green






23. Has eight wires; they are copper conductors that transmit electric signals. These eight wires are grouped into four pairs: blue - orange - green - and brown.






24. Anything that disrupts or modifies a signal that is traveling along a wire.






25. Medium dependent interface crossover






26. When the signal that is transmitted on one copper wire or pair of wires creates an undesired effect on another wire or pair of wires.






27. The older standard BOGB cable.






28. Provides strong authentication to devices that need to connect to the WLAN; it can also be used for regular wired LANs.






29. Telecommunications Industry Association/Electronics Industries Alliance






30. Similar to a wireless repeater - but the bridge can connect different 802.11 standards together; this is know as bridge mode.






31. 100 Mbps






32. This is the electromagnetic (EM) field that is generated by a network cable or network device - which can be manipulated to eavesdrop on conversations or to steal data.






33. Port based network access control (PNAC)






34. You are setting up a network within a warehouse using Category 6 UTP. however - parts of the network are down because of the heavy machinery used. What cable type should you use?






35. Allow for connectivity between a desktop computer or laptop and the wireless access pint.






36. This is interference that can come from AM/FM transmissions and cell phone towers.






37. What is the maximum speed supported by 802.11g?






38. The most common type of patch cable - and it is the type that you would use to connect a computer to a central connecting device like a switch. The wires on each end of the cable are oriented in the same way.






39. 568B = White/green - 568A = White/orange - BOGB = White/orange






40. Occurs when there is similar interference - measured at the cable end farthest from the transmitter.






41. 568B = Brown - 568A = Brown - BOGB = Brown






42. These cables have Teflon coating that makes them more impervious to fire.






43. Occurs when wireless clients connect to and are authenticated by a wireless access point - which can be expanded by creating a wireless distribution system-a group of WAPs interconnected wirelessly.






44. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






45. You need to connect a twisted-pair cable to the back of a patch panel. What tool should you use?






46. A network composed of at least one WAP and at least one computer or handheld device that can connect to the WAP.






47. 128-bit encryption level






48. Instead of using crossover cables to connect computers to central connecting devices such as switches - these central connecting devices are equipped with _______ ports - which take care of the cross.






49. 568B = White/orange - 568A = White/green - BOGB = White/blue






50. Regular twisted-pair cabling