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. Regular twisted-pair cabling






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






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






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






5. 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.






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






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






8. 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






9. 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.






10. 100 Mbps






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






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






13. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






15. 64-bit encryption level






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






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






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






19. Medium dependent interface crossover






20. 568B = White/brown - 568A = White/brown - BOGB = White/brown






21. 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?






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






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






24. Medium dependent interface.






25. Telecommunications Industry Association/Electronics Industries Alliance






26. The standard BOGB cable.






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






28. Blue - orange - green and brown.






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






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






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






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






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






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






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






36. 568B = White/orange - 568A = White/green - BOGB = White/blue






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






38. Port based network access control (PNAC)






39. 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.






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. What is the most common cable used today?






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. What is used to identify a wireless network?






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






45. 256-bit encryption level






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






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






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






49. 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.






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