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






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






3. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






5. 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.






6. Blue - orange - green and brown.






7. 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.






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






9. If you are making a crossover cable and one end is 568A - what should the other end be?






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






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






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






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






15. 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.






16. Port based network access control (PNAC)






17. 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.






18. The standard BOGB cable.






19. 568B = White/brown - 568A = White/brown - BOGB = White/brown






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






21. 568B = White/orange - 568A = White/green - BOGB = White/blue






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






23. 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.






24. The older standard BOGB cable.






25. 100 Mbps






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






27. What is used to identify a wireless network?






28. 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.






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






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






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






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. Medium dependent interface crossover






34. 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






35. 10 Mbps






36. 568B = Orange - 568A = Green - BOGB = Blue






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






38. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






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






40. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






43. Regular twisted-pair cabling






44. 64-bit encryption level






45. What is the most common cable used today?






46. Medium dependent interface.






47. 128-bit encryption level






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






49. 568B = Green - 568A = Orange - BOGB = Green






50. 568B = White/blue - 568A = White/blue - BOGB = White/green