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






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






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






4. 128-bit encryption level






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






6. 64-bit encryption level






7. 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.






8. The older standard BOGB cable.






9. 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?






10. 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.






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






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






13. The standard BOGB cable.






14. 568B = White/blue - 568A = White/blue - BOGB = White/green






15. Port based network access control (PNAC)






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






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






18. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






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






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






21. Blue - orange - green and brown.






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






23. 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






24. 568B = White/green - 568A = White/orange - BOGB = White/orange






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






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






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






28. 568B = Brown - 568A = Brown - BOGB = Brown






29. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






30. 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.






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






32. 100 Mbps






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






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






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






36. 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.






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






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






39. 256-bit encryption level






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






41. Telecommunications Industry Association/Electronics Industries Alliance






42. What is used to identify a wireless network?






43. 10 Mbps






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






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






46. 568B = Green - 568A = Orange - BOGB = Green






47. Regular twisted-pair cabling






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






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