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






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






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






4. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






5. 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.






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






7. 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.






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






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






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






11. 568B = Orange - 568A = Green - BOGB = Blue






12. Medium dependent interface crossover






13. 100 Mbps






14. 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.






15. 568B = White/orange - 568A = White/green - BOGB = White/blue






16. What is the most common cable used today?






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






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






19. The standard BOGB cable.






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






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






23. Medium dependent interface.






24. Telecommunications Industry Association/Electronics Industries Alliance






25. 128-bit encryption level






26. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






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






29. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






31. 568B = Green - 568A = Orange - BOGB = Green






32. 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.






33. Port based network access control (PNAC)






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






35. 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






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






37. 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.






38. 128- -192- - and 256-bit






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






40. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






42. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






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






44. 568B = Brown - 568A = Brown - BOGB = Brown






45. 568B = White/brown - 568A = White/brown - BOGB = White/brown






46. 568B = Blue - 568A = Blue - BOGB = Orange






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






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






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






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