LAN Switching and Wireless

391. In Ethernet addressing, if all the bits are 1s, the address is _________.

1. unicast
2. multicast
3. broadcast
4. none of the above

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392. In Ethernet addressing, if the least significant bit of the first byte is 0, the address is _________.

1. unicast
2. multicast
3. broadcast
4. none of the above

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393. In Ethernet addressing, if the least significant bit of the first byte is 1, the address is _________.

1. unicast
2. multicast
3. broadcast
4. none of the above

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394. In fiber optics, the signal is _________ waves.

1. light
2. radio
3. infrared
4. very low-frequency

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395. In Frame Relay, an address can be _________ bytes.

1. only 2
2. 2 to 3
3. 2 to 4
4. none of the above

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396. In Frame Relay, the EA field defines the number of bytes; it is _________ in the last byte of the address.

1. 0
2. 1
3. 2
4. 3

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397. In Frame Relay, when a _________ is selected, the corresponding table entry is recorded for all switches by the administrator

1. PVC
2. SVC
3. either (a) or (b)
4. neither (a) nor (b)

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398. In Frame Relay, when. _________ is selected, it requires establishing and terminating phases

1. a PVC
2. an SVC
3. either (a) or (b)
4. neither (a) nor (b)

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399. In Go-Back-N ARQ, if 5 is the number of bits for the sequence number, then the maximum size of the receive window must be _________

1. 15
2. 16
3. 31
4. 1

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400. In Go-Back-N ARQ, if 5 is the number of bits for the sequence number, then the maximum size of the send window must be _________

1. 15
2. 16
3. 31
4. 1

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