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






2. 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.






3. 568B = Brown - 568A = Brown - BOGB = Brown






4. The older standard BOGB cable.






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






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






7. 568B = White/orange - 568A = White/green - BOGB = White/blue






8. What is the most common cable used today?






9. 100 Mbps






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






11. 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.






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






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






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






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






16. Telecommunications Industry Association/Electronics Industries Alliance






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






18. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






20. 568B = White/green - 568A = White/orange - BOGB = White/orange






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






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. 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.






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






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






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






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






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






30. 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.






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






32. 568B = Green - 568A = Orange - BOGB = Green






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






34. 128- -192- - and 256-bit






35. 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?






36. 128-bit encryption level






37. 568B = Blue - 568A = Blue - BOGB = Orange






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






39. Regular twisted-pair cabling






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






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






42. 64-bit encryption level






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






44. Medium dependent interface.






45. Medium dependent interface crossover






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






47. 256-bit encryption level






48. 10 Mbps






49. Blue - orange - green and brown.






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