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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