LAN Switching and Wireless

261. IEEE has defined the specifications for a wireless LAN, called _________, which covers the physical and data link layers.

1. IEEE 802.3
2. IEEE 802.5
3. IEEE 802.11
4. IEEE 802.2

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262. If an Ethernet destination address is 07:01:02:03:04:05, then this is a _________ address.

1. unicast
2. multicast
3. broadcast
4. any of the above

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263. If an Ethernet destination address is 08:07:06:05:44:33, then this is a _________ address.

1. unicast
2. multicast
3. broadcast
4. any of the above

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264. If the available channel is a _________ channel, we cannot send a digital signal directly to the channel.

1. low-pass
2. bandpass
3. low rate
4. high rate

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265. If the bandwidth of a signal is 5 KHz and the lowest frequency is 52 KHz, what is the highest frequency?

1. 5 KHz
2. 10 KHz
3. 47 KHz
4. 57 KHz

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266. If the baud rate for a 64-QAM signal is 2000, what is the bit rate?

1. 300
2. 400
3. 1000
4. 12000

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267. If the baud rate is 400 for a QPSK signal, the bit rate is _________ bps.

1. 100
2. 400
3. 800
4. 1600

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268. If the bit rate for a 16-QAM signal is 4000 bps, what is the baud rate?

1. 300
2. 400
3. 1000
4. 1200

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269. If the bit rate for an ASK signal is 1200 bps, the baud rate is _________.

1. 300
2. 400
3. 600
4. 1200

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270. If the bit rate for an FSK signal is 1200 bps, the baud rate is _________.

1. 300
2. 400
3. 600
4. 1200

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