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. Telecommunications Industry Association/Electronics Industries Alliance






2. 128- -192- - and 256-bit






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






4. Regular twisted-pair cabling






5. 568B = Blue - 568A = Blue - BOGB = Orange






6. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






8. 568B = Brown - 568A = Brown - BOGB = Brown






9. 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






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






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






12. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






13. 256-bit encryption level






14. 568B = Green - 568A = Orange - BOGB = Green






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






16. Medium dependent interface crossover






17. What type of cable should be used as part of a fire code for a building?






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






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






20. 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.






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






22. 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.






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






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






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






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






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






28. Gigabit networks. Has different versions that run at 250 MHz and 500 MHz.






29. What is used to identify a wireless network?






30. 568B = White/blue - 568A = White/blue - BOGB = White/green






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






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






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






34. 128-bit encryption level






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






36. Port based network access control (PNAC)






37. 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?






38. 568B = White/brown - 568A = White/brown - BOGB = White/brown






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






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






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






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






43. 10 Mbps






44. 568B = White/green - 568A = White/orange - BOGB = White/orange






45. 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.






46. Medium dependent interface.






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






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






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






50. 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.