Wireless Networking

51 flashcards · Other · by Ian Christensen

1. Wireless Access Point (WAP)

2. What does WAP stand for?

3. Infrastructure Mode

4. Wireless Network Card

5. (NIC)

6. Where is the antenna in a laptop?

   In the monitor

7. Do phones have a network card?

   Yes

8. Service Set Identifier (SSID)

   The name of the network?

9. Ad Hoc Mode

   When you turn your computer into a WAP

10. Antennas

11. Omni-directional Antenna

    Antennas that stick straight up and don't move, spherical signal

12. Dipole Antenna

    Antennas that stick up and down, radial signal

13. Patch Antenna

    Paddle shape, half of a sphere signal

14. Highly Directional Yagi Antenna

15. Yagi Antenna

    Football shaped signal (Pernel Lens)

16. What does ISM Radio Bands stand for?

    Industrial, Scientific, and Medical Radio Bands

17. Channels

18. How many channels does the 2.4 GHz band include?

    Officially 14 (Japan), 13 in Europe, and 11 in the USA

19. How many channels does the 5 GHz band include?

20. MIMO (Multiple In / Multiple Out)

21. Wi-fi analyzer tool

    WiFiman

22. What 2.4 GHz channels don't overlap?

    1, 6, and 11

23. Firewall

24. WPA

25. Hide/disable SSID broadcast

    CompTIA says this is an important security feature

26. If someone is unable to connect to the Wi-Fi what should they do?

    Check that the wireless network card is not disabled

27. If someone is unable to connect to a Wi-Fi that they have previously connect to what should they do?

    Forget the network and reconnect

28. What's wrong if your wireless device is getting an APIPA address?

    On most wireless clients the NIC is configured as a DHCP client so something is wrong...password?

29. Wireless Mesh Network (WMN)

30. What does WMN stand for?

    Wireless Mesh Network

31. What is a WMN base station?

32. What is a WMN beacon?

33. Radio Frequency Identification (RFID)

34. What does RFID stand for?

    Radio Frequency Identification

35. What does a Radio Frequency Identification sticker look like?

36. Near Field Communication (NFC)

37. What does NFC stand for?

    Near Field Communication

38. Tap to print

    An NFC/RFID

39. Tap-to-Pay

40. Bluetooth

41. Personal Area Network (PAN)

42. What does PAN stand for?

    Personal Area Network

43. No connectivity

    Does the SSID exist? Maybe they changed the name or passcode. Or they turned off SSID broadcast, which means you'll need to know the exact name of the network.

44. Low RF signal

    Get closer to the SSID, readjust the antenna

45. Limited connectivity / Slow Transfer Speed

    Interference from stuff like baby monitors and microwaves or even just a wall

46. Intermittent Connectivity

    Too many people on the network, install new WAPs and use in QoS

47. Which is not a Wi-Fi capable device? WAP Switch Smartphone Tablet

    Switch

48. Which should you try first if your device can't connect to a remembered public wireless network? Increase the transmit power on the SOHO router Connect to the SOHO router with a cable Reset the SOHO router to factory defaults Delete the profile and try to connect again

    Delete the profile and try to connect again

49. Which is not true of wireless mesh networks? Mesh networks have a single base station Mesh networks are best for large enterprise networks Mesh networks have one or more beacon/satellite stations Mesh networks provide wide coverage in homes and small offices

    Mesh networks are best for large enterprise networks

50. Which is not a wireless radio technology found in computers, tablets or phones? Infrared Bluetooth RFID NFC

    Infrared

51. Which is most-likely to prevent a device from connecting to a previously-used Wi-Fi network? The antenna(s) are poorly oriented The SSID has changed Too many devices are accessing the WAP The WAP is disconnected from the Internet

    The SSID has changed