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. 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.






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






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






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






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






6. 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.






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






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






9. Telecommunications Industry Association/Electronics Industries Alliance






10. 128-bit encryption level






11. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






12. The standard BOGB cable.






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






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






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






16. 568B = White/orange - 568A = White/green - BOGB = White/blue






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






18. 128- -192- - and 256-bit






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






20. Medium dependent interface.






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






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






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






25. 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?






26. 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






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






28. 568B = Green - 568A = Orange - BOGB = Green






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






30. What is used to identify a wireless network?






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






32. 10 Mbps






33. 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.






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






35. 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.






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






37. The older standard BOGB cable.






38. What is the most common cable used today?






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






40. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






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






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






43. 100 Mbps






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






45. 64-bit encryption level






46. 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.






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






48. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






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






50. 568B = White/brown - 568A = White/brown - BOGB = White/brown