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






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






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






4. 568B = White/blue - 568A = White/blue - BOGB = White/green






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






6. 568B = Blue - 568A = Blue - BOGB = Orange






7. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






9. 568B = White/orange - 568A = White/green - BOGB = White/blue






10. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






11. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






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






13. 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.






14. The standard BOGB cable.






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






16. What is the most common cable used today?






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






18. 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






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






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






21. 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.






22. Blue - orange - green and brown.






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






24. 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.






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






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






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






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






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






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






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






32. Port based network access control (PNAC)






33. 568B = White/green - 568A = White/orange - BOGB = White/orange






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






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






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






37. The older standard BOGB cable.






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






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






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






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






42. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






44. Medium dependent interface crossover






45. 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.






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






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






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






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






50. Telecommunications Industry Association/Electronics Industries Alliance