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






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






3. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






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






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






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






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






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






9. Regular twisted-pair cabling






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






11. Telecommunications Industry Association/Electronics Industries Alliance






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






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






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






15. 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






16. 128- -192- - and 256-bit






17. What is used to identify a wireless network?






18. 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.






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






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






21. 568B = Green - 568A = Orange - BOGB = Green






22. 568B = Brown - 568A = Brown - BOGB = Brown






23. 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.






24. 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.






25. Medium dependent interface crossover






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






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






28. 100 Mbps






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






30. 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.






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






32. Blue - orange - green and brown.






33. 568B = Orange - 568A = Green - BOGB = Blue






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






35. 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.






36. 256-bit encryption level






37. 568B = Blue - 568A = Blue - BOGB = Orange






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






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






40. 568B = White/green - 568A = White/orange - BOGB = White/orange






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






42. 568B = White/orange - 568A = White/green - BOGB = White/blue






43. The older standard BOGB cable.






44. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






46. 64-bit encryption level






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






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






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






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