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. 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.






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






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






4. Medium dependent interface.






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






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






7. The standard BOGB cable.






8. 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.






9. 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






10. 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.






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






12. Telecommunications Industry Association/Electronics Industries Alliance






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






14. Regular twisted-pair cabling






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






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






17. 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.






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






19. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






20. Blue - orange - green and brown.






21. 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.






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






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






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






25. What is the most common cable used today?






26. 568B = Green - 568A = Orange - BOGB = Green






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






28. 568B = White/green - 568A = White/orange - BOGB = White/orange






29. 568B = Blue - 568A = Blue - BOGB = Orange






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






31. 100 Mbps






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






33. 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.






34. 128- -192- - and 256-bit






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






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






37. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






38. 568B = Orange - 568A = Green - BOGB = Blue






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






40. 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?






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






42. 568B = White/brown - 568A = White/brown - BOGB = White/brown






43. 64-bit encryption level






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






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






46. 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.






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






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






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






50. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency