SolStd13 - CHAPTER 13 Local Area Networks: Ethernet...

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1 CHAPTER 13 Local Area Networks: Ethernet Solutions to Odd-Numbered Review Questions and Exercises Review Questions 1. The preamble is a 56-bit field that provides an alert and timing pulse. It is added to the frame at the physical layer and is not formally part of the frame. SFD is a one- byte field that serves as a flag. 3. A multicast address identifies a group of stations; a broadcast address identifies all stations on the network. A unicast address identifies one of the addresses in a group. 5. A layer-2 switch is an N-port bridge with additional sophistication that allows faster handling of packets. 7. The rates are as follows: 9. The common Fast Ethernet implementations are 100Base-TX , 100Base-FX , and 100Base-T4 . 11. The common Ten-Gigabit Ethernet implementations are 10GBase-S , 10GBase-L , and 10GBase-E . Exercises 13. The bytes are sent from left to right. However, the bits in each byte are sent from the least significant (rightmost) to the most significant (leftmost). We have shown
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SolStd13 - CHAPTER 13 Local Area Networks: Ethernet...

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