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






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






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






4. 128- -192- - and 256-bit






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






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






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






8. Port based network access control (PNAC)






9. Blue - orange - green and brown.






10. 568B = Orange - 568A = Green - BOGB = Blue






11. The most common type of patch cable - and it is the type that you would use to connect a computer to a central connecting device like a switch. The wires on each end of the cable are oriented in the same way.






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






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






14. 568B = White/blue - 568A = White/blue - BOGB = White/green






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






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






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






18. Medium dependent interface crossover






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






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






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






22. 64-bit encryption level






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






24. Regular twisted-pair cabling






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






26. 128-bit encryption level






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






28. 568B = White/orange - 568A = White/green - BOGB = White/blue






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






30. 568B = White/brown - 568A = White/brown - BOGB = White/brown






31. 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?






32. 568B = White/green - 568A = White/orange - BOGB = White/orange






33. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






34. 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.






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






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






37. 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.






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






39. 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.






40. 10 Mbps






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






42. 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






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






44. 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.






45. 256-bit encryption level






46. 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.






47. The standard BOGB cable.






48. What is used to identify a wireless network?






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






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