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. 128- -192- - and 256-bit






2. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






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






6. Blue - orange - green and brown.






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






8. 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.






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






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






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






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






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






14. 10 Mbps






15. 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.






16. 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.






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






18. Port based network access control (PNAC)






19. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






20. 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.






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






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






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






24. 128-bit encryption level






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






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






27. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






29. Medium dependent interface.






30. 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.






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






32. 568B = Orange - 568A = Green - BOGB = Blue






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






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






35. 256-bit encryption level






36. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






37. Medium dependent interface crossover






38. The older standard BOGB cable.






39. 100 Mbps






40. 568B = White/green - 568A = White/orange - BOGB = White/orange






41. 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.






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






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






44. 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?






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






46. 568B = Brown - 568A = Brown - BOGB = Brown






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






48. 64-bit encryption level






49. 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.






50. What is the most common cable used today?