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. 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.






2. 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.






3. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






5. 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.






6. Regular twisted-pair cabling






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






8. 568B = Blue - 568A = Blue - BOGB = Orange






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






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






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






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






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






14. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






15. Telecommunications Industry Association/Electronics Industries Alliance






16. 100 Mbps






17. Port based network access control (PNAC)






18. 568B = White/orange - 568A = White/green - BOGB = White/blue






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






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






21. 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






22. Blue - orange - green and brown.






23. 256-bit encryption level






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






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






26. 64-bit encryption level






27. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






30. 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?






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






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






33. 10 Mbps






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






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






36. 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.






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






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






39. 568B = Brown - 568A = Brown - BOGB = Brown






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






41. 568B = White/brown - 568A = White/brown - BOGB = White/brown






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






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






44. 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.






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






46. 128-bit encryption level






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






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






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






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