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






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






3. 256-bit encryption level






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






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






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






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






8. 100 Mbps






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






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






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






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






13. Medium dependent interface.






14. 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.






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






16. 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.






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






19. 568B = White/green - 568A = White/orange - BOGB = White/orange






20. 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?






21. 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.






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






23. 568B = White/brown - 568A = White/brown - BOGB = White/brown






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






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






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






27. 568B = Green - 568A = Orange - BOGB = Green






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






29. The older standard BOGB cable.






30. 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.






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






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






33. 128- -192- - and 256-bit






34. Blue - orange - green and brown.






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






36. What is the most common cable used today?






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






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






39. The standard BOGB cable.






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






41. Medium dependent interface crossover






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






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






44. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






45. 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.






46. 64-bit encryption level






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






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






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






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