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






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






3. Occurs when wireless clients connect to and are authenticated by a wireless access point - which can be expanded by creating a wireless distribution system-a group of WAPs interconnected wirelessly.






4. Medium dependent interface.






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






6. 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?






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






8. The standard BOGB cable.






9. 100 Mbps






10. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






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






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






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






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






17. 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.






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






19. What is used to identify a wireless network?






20. 568B = Brown - 568A = Brown - BOGB = Brown






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






22. 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.






23. 568B = Orange - 568A = Green - BOGB = Blue






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. Used to extend the coverage of a wireless network.






26. 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






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






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






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






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






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






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






33. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






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






35. 10 Mbps






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






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






38. Blue - orange - green and brown.






39. 568B = White/orange - 568A = White/green - BOGB = White/blue






40. Port based network access control (PNAC)






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






42. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






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






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






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. Medium dependent interface crossover






47. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






49. 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.






50. 568B = White/brown - 568A = White/brown - BOGB = White/brown