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. The standard BOGB cable.






2. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






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






5. What is used to identify a wireless network?






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






7. 568B = Green - 568A = Orange - BOGB = Green






8. 568B = Orange - 568A = Green - BOGB = Blue






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






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






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






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






13. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






14. What is the most common cable used today?






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






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






17. Medium dependent interface.






18. 100 Mbps






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






21. 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.






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






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






24. 568B = Blue - 568A = Blue - BOGB = Orange






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






26. 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.






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






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






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






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






31. 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






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






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






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






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






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






37. 10 Mbps






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






39. 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.






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






41. 128- -192- - and 256-bit






42. Medium dependent interface crossover






43. 256-bit encryption level






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






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. 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.






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






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






49. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






50. 128-bit encryption level