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






2. 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.






3. Medium dependent interface.






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






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






6. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






8. 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.






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






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






11. 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.






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






13. The standard BOGB cable.






14. 568B = Blue - 568A = Blue - BOGB = Orange






15. What is the most common cable used today?






16. 128- -192- - and 256-bit






17. 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.






18. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






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






20. 100 Mbps






21. 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






22. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






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






26. 128-bit encryption level






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






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






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






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






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






32. What is used to identify a wireless network?






33. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






34. 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.






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






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






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






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






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






40. 256-bit encryption level






41. Telecommunications Industry Association/Electronics Industries Alliance






42. 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.






43. 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.






44. Regular twisted-pair cabling






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






46. The older standard BOGB cable.






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






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






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






50. 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?