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. Blue - orange - green and brown.






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






3. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






4. 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.






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






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






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






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






9. You are setting up a network within a warehouse using Category 6 UTP. however - parts of the network are down because of the heavy machinery used. What cable type should you use?






10. 128-bit encryption level






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






12. Medium dependent interface crossover






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






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






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






16. 256-bit encryption level






17. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






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






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






22. Port based network access control (PNAC)






23. 568B = White/brown - 568A = White/brown - BOGB = White/brown






24. Regular twisted-pair cabling






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






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






27. Telecommunications Industry Association/Electronics Industries Alliance






28. 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.






29. 568B = Blue - 568A = Blue - BOGB = Orange






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






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






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






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






34. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






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






36. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






37. 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.






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






39. 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






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






41. 568B = Green - 568A = Orange - BOGB = Green






42. What is the most common cable used today?






43. 568B = Orange - 568A = Green - BOGB = Blue






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






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






46. What is used to identify a wireless network?






47. 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.






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






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






50. 64-bit encryption level