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






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






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






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






5. 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.






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






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






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






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






10. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






11. Blue - orange - green and brown.






12. Regular twisted-pair cabling






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






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






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






16. Medium dependent interface.






17. 568B = Blue - 568A = Blue - BOGB = Orange






18. 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.






19. 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.






20. 128-bit encryption level






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






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






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






24. 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.






25. 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.






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






27. 568B = White/brown - 568A = White/brown - BOGB = White/brown






28. 568B = White/orange - 568A = White/green - BOGB = White/blue






29. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






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






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






32. What is the most common cable used today?






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






34. 64-bit encryption level






35. 128- -192- - and 256-bit






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






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






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






39. 256-bit encryption level






40. 568B = Orange - 568A = Green - BOGB = Blue






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






42. 10 Mbps






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






44. 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






45. 568B = White/green - 568A = White/orange - BOGB = White/orange






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






47. What is used to identify a wireless network?






48. 568B = Green - 568A = Orange - BOGB = Green






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






50. 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.