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. 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






2. 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.






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






4. 568B = Green - 568A = Orange - BOGB = Green






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






6. Port based network access control (PNAC)






7. 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.






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






9. 568B = Brown - 568A = Brown - BOGB = Brown






10. 10 Mbps






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






12. 256-bit encryption level






13. What is used to identify a wireless network?






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






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






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






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






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






20. 128-bit encryption level






21. 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.






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






23. 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.






24. 568B = White/blue - 568A = White/blue - BOGB = White/green






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






26. Blue - orange - green and brown.






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






28. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






29. 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?






30. 100 Mbps






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






32. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






35. 568B = White/brown - 568A = White/brown - BOGB = White/brown






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






37. 568B = Orange - 568A = Green - BOGB = Blue






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






39. 64-bit encryption level






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






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






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






43. 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.






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






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






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






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






48. 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.






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






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