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. What is the most common cable used today?






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






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






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






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






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






7. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






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






11. 568B = White/orange - 568A = White/green - BOGB = White/blue






12. Regular twisted-pair cabling






13. Medium dependent interface.






14. Medium dependent interface crossover






15. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






16. 568B = Blue - 568A = Blue - BOGB = Orange






17. 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.






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






19. 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.






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






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






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






23. 568B = Brown - 568A = Brown - BOGB = Brown






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






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






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






27. 128-bit encryption level






28. Telecommunications Industry Association/Electronics Industries Alliance






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






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






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






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






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






34. 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.






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






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






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






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






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






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






41. The standard BOGB cable.






42. 64-bit encryption level






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






44. 568B = White/blue - 568A = White/blue - BOGB = White/green






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






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






47. 256-bit encryption level






48. 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






49. 568B = White/brown - 568A = White/brown - BOGB = White/brown






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







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