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






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






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






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






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






6. 256-bit encryption level






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






8. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






9. Telecommunications Industry Association/Electronics Industries Alliance






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






11. 568B = Green - 568A = Orange - BOGB = Green






12. 568B = White/brown - 568A = White/brown - BOGB = White/brown






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






14. 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.






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






16. The older standard BOGB cable.






17. 568B = White/blue - 568A = White/blue - BOGB = White/green






18. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






19. 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.






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






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






22. What is used to identify a wireless network?






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






24. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






25. Blue - orange - green and brown.






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






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






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






29. 568B = Brown - 568A = Brown - BOGB = Brown






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






31. Medium dependent interface crossover






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






33. 128- -192- - and 256-bit






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






35. 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.






36. 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.






37. Port based network access control (PNAC)






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






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






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






41. 128-bit encryption level






42. The standard BOGB cable.






43. What is the most common cable used today?






44. 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.






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






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






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






48. 64-bit encryption level






49. 568B = White/orange - 568A = White/green - BOGB = White/blue






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