Wireless Flashcards

1
Q

Unlicensed Frequencies

A

900 Mhz - 902 - 928
2.4 Ghz - 2.400 - 2.483
5 Ghz - 5.150 - 5.350

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2
Q

The lower the frequency the ______ range you get, but the _____ bandwidth

A

Further range

less bandwidth

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3
Q

802.11b - Frequency?

A

2.4Ghz Range

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4
Q

802.11A - Frequency?

A

5.8Ghz Range

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5
Q

802.11b - Max Data Rate?

A

11Mbps

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6
Q

802.11a - Max Data Rate

A

54Mbps

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7
Q

802.11b - # of channels

A

3

1, 6 and 11 clear

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8
Q

802.11b - # of channels

A

12 to 23

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9
Q

802.11g - Max Data Rate

A

54Mbps

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10
Q

802.11g - Frequency?

A

2.4Ghz

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11
Q

802.11g - # of channels

A

3 clear

1, 6, and 11 clear

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12
Q

802.11n - Max Data Rate

A

150mbps

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13
Q

802.11n - Frequency?

A

Both 2.4 and 5

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14
Q

A section of a wireless range?

ex: 2.4 has 3

A

channels

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15
Q

Goal - Setup access points with non _______ frequencies. If you do overlap - ____ to ___%

A

overlapping

10 to 15 %

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16
Q

Regulates the readio frequencies used for wireless transmissions

A

ITU-R : International Telecommunications Union - RadioCommunication Sectior

17
Q

Maintains the 802.11 Wireless Transmission Standards

A

IEEE: Insintue of electical and electronic engineers

18
Q

Ensures Certified interoperability between 802.11 wireless vendors

A

Wi-Fi Alliance

19
Q

Simple WLAN with a single AP

A

Basic Service Set - BSS

20
Q

WLAN with multiple AP’s

A

Extended Service Set - ESS

21
Q

Identifies a WLAN - 32 character ASCII

A

Service Set Identifier - SSID

22
Q

Initial Wireless Security

  • Static PSK
  • only 64 bit keys
A

Wired Equivalent Privacy - WEP

23
Q

Cisco Interim OSlution between WEP and 802.11i has the following features

A
  • Dynamic Key Exchange
  • User authentication using 802.1x
  • new encryption for each packet