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






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






3. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






4. 568B = White/blue - 568A = White/blue - BOGB = White/green






5. Telecommunications Industry Association/Electronics Industries Alliance






6. 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.






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






8. 568B = White/green - 568A = White/orange - BOGB = White/orange






9. The standard BOGB cable.






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






11. The older standard BOGB cable.






12. What is used to identify a wireless network?






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






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






15. Medium dependent interface.






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






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






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






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






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






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






22. Port based network access control (PNAC)






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






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






25. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






27. 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






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






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






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






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






33. 100 Mbps






34. 256-bit encryption level






35. 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.






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






37. 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.






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






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






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






41. 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.






42. Blue - orange - green and brown.






43. Regular twisted-pair cabling






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






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






46. 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.






47. 568B = White/brown - 568A = White/brown - BOGB = White/brown






48. 128- -192- - and 256-bit






49. 64-bit encryption level






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






Can you answer 50 questions in 15 minutes?



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