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. Port based network access control (PNAC)






2. 568B = Orange - 568A = Green - BOGB = Blue






3. 128-bit encryption level






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






5. This means that wireless devices can have more antennas - up to four maximum.






6. Regular twisted-pair cabling






7. In order to ensure compatibility - the WAP and other wireless devices must all use the same __________.






8. 64-bit encryption level






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






10. When utilizing infrastructure mode - the base unit (normally a WAP) will be configured with a _____________. This then becomes the name of the wireless network - and it is broadcast over the airwaves.






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






12. A cable with an optical fiber that is meant to carry a single ray of light-one ray of light - one mode. This type of cable is normally used for longer distance runs - generally 10 km and up to 80 km.






13. The standard BOGB cable.






14. Medium dependent interface.






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






16. 568B = White/brown - 568A = White/brown - BOGB = White/brown






17. Occurs when all of the clients communicate directly with each other. There is no base or wireless access point.






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






19. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






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






21. Medium dependent interface crossover






22. Which of the following is not a characteristic of 802.11n?






23. 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.






24. For organizations - using - authentication for wireless networks is recommended.






25. 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.






26. What is used to identify a wireless network?






27. 568B = White/green - 568A = White/orange - BOGB = White/orange






28. 10 Mbps






29. 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






30. What is the minimum category of twisted-pair cable you need to support 100 Mbps?






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






32. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






34. 256-bit encryption level






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






36. What do you call it when electrical signals jump to another set of wires?






37. 568B = White/blue - 568A = White/blue - BOGB = White/green






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






39. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






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






41. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






42. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






43. 568B = White/orange - 568A = White/green - BOGB = White/blue






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






45. Tests all of the pins of a connection one by one.






46. Telecommunications Industry Association/Electronics Industries Alliance






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






48. The older standard BOGB cable.






49. Have an aluminum shield inside the plastic jacket that surrounds the pairs of wires.






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







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