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 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?






2. Port based network access control (PNAC)






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






4. 54 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






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






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






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






8. 128-bit encryption level






9. 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






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






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






12. 568B = Orange - 568A = Green - BOGB = Blue






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






14. 568B = White/orange - 568A = White/green - BOGB = White/blue






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






16. 568B = White/green - 568A = White/orange - BOGB = White/orange






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






18. The older standard BOGB cable.






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






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






21. 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.






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






23. 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.






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






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






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






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






28. Medium dependent interface.






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






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






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






32. 11 Mbps (Data Transfer Rate) and 2.4 GHz Frequency






33. 568B = Brown - 568A = Brown - BOGB = Brown






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






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






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






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






38. 568B = White/blue - 568A = White/blue - BOGB = White/green






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






40. What is used to identify a wireless network?






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






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






43. 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.






44. 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.






45. 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.






46. 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.






47. The standard BOGB cable.






48. 568B = Blue - 568A = Blue - BOGB = Orange






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






50. 100 Mbps and Gigabit networks and is usually rated at 350 MHz - but actual speed varies depending on several different networking factors.