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. Medium dependent interface.






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






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






4. 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.






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






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






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






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






9. 568B = White/brown - 568A = White/brown - BOGB = White/brown






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






11. 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.






12. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






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






15. Regular twisted-pair cabling






16. Used to connect like devices to each other - for example - a computer to another computer - or a switch to another switch.






17. Medium dependent interface crossover






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






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






20. 100 Mbps






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






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






23. 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?






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






25. 568B = White/orange - 568A = White/green - BOGB = White/blue






26. 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.






27. 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






28. Blue - orange - green and brown.






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






30. 568B = Green - 568A = Orange - BOGB = Green






31. 568B = Brown - 568A = Brown - BOGB = Brown






32. The older standard BOGB cable.






33. 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.






34. 128-bit encryption level






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






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






37. 10 Mbps






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






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






40. What is the most common cable used today?






41. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






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






45. 128- -192- - and 256-bit






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






47. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






48. 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.






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






50. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.