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






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






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






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






5. 10 Mbps






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






7. 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?






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






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






10. 568B = Green - 568A = Orange - BOGB = Green






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






12. 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.






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






14. 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






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






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






17. 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.






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






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






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






21. The standard BOGB cable.






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






23. Blue - orange - green and brown.






24. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.






25. What is used to identify a wireless network?






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






27. 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.






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






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






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






31. 54 Mbps (Data Transfer Rate) and 5 GHz Frequency






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






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






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






35. Telecommunications Industry Association/Electronics Industries Alliance






36. 600 Mbps (Data Transfer Rate) and 5 GHz and/or 2.4 GHz Frequency






37. 64-bit encryption level






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






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






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






41. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






42. What is the most common cable used today?






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






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






45. 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.






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






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






48. 128-bit encryption level






49. 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.






50. 568B = Orange - 568A = Green - BOGB = Blue