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






2. 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.






3. Medium dependent interface.






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






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






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






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






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






9. Port based network access control (PNAC)






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






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






12. 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






13. 568B = Orange - 568A = Green - BOGB = Blue






14. 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.






15. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






16. 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.






17. The standard BOGB cable.






18. 128-bit encryption level






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






20. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






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






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






23. 568B = White/orange - 568A = White/green - BOGB = White/blue






24. 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.






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






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






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






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






29. 568B = Brown - 568A = Brown - BOGB = Brown






30. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






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






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






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






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






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






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






40. 568B = Green - 568A = Orange - BOGB = Green






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






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






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






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






46. 568B = White/brown - 568A = White/brown - BOGB = White/brown






47. 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.






48. Regular twisted-pair cabling






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






50. 568B = White/blue - 568A = White/blue - BOGB = White/green







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