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






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






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






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






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






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






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






8. 256-bit encryption level






9. 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.






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






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






12. 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.






13. 568B = Orange - 568A = Green - BOGB = Blue






14. 568B = Brown - 568A = Brown - BOGB = Brown






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






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






17. 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.






18. 568B = Blue - 568A = Blue - BOGB = Orange






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






20. 64-bit encryption level






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






22. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






23. 568B = White/blue - 568A = White/blue - BOGB = White/green






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






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






26. 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.






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






28. 100 Mbps






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






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






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






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






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






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






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






36. 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.






37. Port based network access control (PNAC)






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






39. The standard BOGB cable.






40. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






41. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






44. The older standard BOGB cable.






45. 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.






46. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






47. 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.






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






49. Blue - orange - green and brown.






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