1 Wireless networks

1.1 Wireless networks

1. A wireless network uses______waves to transmit signals

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2. Which short range wireless standard is used for WPAN?

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3. Bluetooth operates in the 2.4 GHz range of the radio frequency spectrum. _______ also use this part of the spectrum.

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4. Which of the following is not a characteristic of a ZigBee network?

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6. Which of the following IEEE standards defines IrDA?

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6. At what frequencies do Wi-Fi radios make transmissions?

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7. Which of these wireless technologies could support use at a range of 50 km?

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8. When did first generation (1G) cellular services become commercially available?

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9. In IEEE 802.11, a BSS without an AP is called an ________

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10. An alphanumeric key identifying the name of the WLAN is called a _______

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11. The IEEE 802.11 standard uses what method as the media access method?

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12. The IEEE 802.11 standard specifies data rates of what?

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13. The IEEE 802.11g is downward compatible to what?

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14. The IEEE 802.11a standard operates on what frequency?

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15. What modulation technique does the IEEE 802.11b standard use?

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16. If _________ is needed, a cryptosystem must be applied over the scheme.

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17. Message_____ means that the data must arrive at the receiver exactly as sent

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18. WPA2 uses what, instead of RC4, used by WEP and WPA?

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19. WEP stands for what?

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20. Which encryption method used on wireless networks is the most secure?

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