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. Blue - orange - green and brown.






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






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






4. 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.






5. 568B = Brown - 568A = Brown - BOGB = Brown






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






7. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






9. 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.






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






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






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






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






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






15. 256-bit encryption level






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






17. What is used to identify a wireless network?






18. 568B = Orange - 568A = Green - BOGB = Blue






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






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






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






22. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






24. 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.






25. Port based network access control (PNAC)






26. 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.






27. 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.






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






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






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






31. Regular twisted-pair cabling






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






33. 568B = Blue - 568A = Blue - BOGB = Orange






34. 568B = White/green - 568A = White/orange - BOGB = White/orange






35. What is the most common cable used today?






36. 128-bit encryption level






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






38. The standard BOGB cable.






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






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






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






42. 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.






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






44. 568B = White/brown - 568A = White/brown - BOGB = White/brown






45. 568B = Green - 568A = Orange - BOGB = Green






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






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






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






49. 100 Mbps






50. 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.