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






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






3. 10 Mbps






4. 568B = Green - 568A = Orange - BOGB = Green






5. 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






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






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






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






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






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






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






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






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






14. 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.






15. 128-bit encryption level






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






17. 568B = Brown - 568A = Brown - BOGB = Brown






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






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






20. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






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






22. 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.






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






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






25. 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.






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






27. Medium dependent interface crossover






28. 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.






29. 568B = White/brown - 568A = White/brown - BOGB = White/brown






30. The standard BOGB cable.






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






32. 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?






33. 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.






34. 568B = Blue - 568A = Blue - BOGB = Orange






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






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






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






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






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






40. 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.






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






42. 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.






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






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






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






46. 64-bit encryption level






47. 128- -192- - and 256-bit






48. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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