In: Computer Science
Match the appropriate field names for an Ethernet frame
Field 1 | Field 2 | Field 3 | Field 4 | Field 5 | Field 6 |
Group of answer choices
Field 1
[ Choose ] Source Port Preamble Ethernet Type File Check Sequence Destination Address Source Address Data Length Destination Port Data and Padding
Field 2
[ Choose ] Source Port Preamble Ethernet Type File Check Sequence Destination Address Source Address Data Length Destination Port Data and Padding
Field 3
[ Choose ] Source Port Preamble Ethernet Type File Check Sequence Destination Address Source Address Data Length Destination Port Data and Padding
Field 4
[ Choose ] Source Port Preamble Ethernet Type File Check Sequence Destination Address Source Address Data Length Destination Port Data and Padding
Field 5
[ Choose ] Source Port Preamble Ethernet Type File Check Sequence Destination Address Source Address Data Length Destination Port Data and Padding
Field 6
[ Choose ] Source Port Preamble Ethernet Type File Check Sequence Destination Address Source Address Data Length Destination Port Data and Padding
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ANSWERS -
The IEEE standard of Ethernet is 802.3. It is a device which allows to connect devices in WAN or LAN with each other using a protocol.
The ethernet basic frame format is -
Preamble | Start Frame Delimiter | Destination Address | Source Address | Length/Type | Data | Frame check sequence |
So,
Field 1 - Preamble = 7 bytes field which is used for synchronization. It informs the receiving device that frame is starting.
Field 2 - not defined in the given choices
Field 3 - Destination Address = 6 byte field contains Mac address of destination
Field 4 - Source Address = 6 byte field contains Mac address of source
Field 5 - Ethernet Type = Type of protocol 2 byte field
Field 6 - Data and Padding = contains Payload data 46-1500 bytes field
Field 7 - Field check sequence = 4 byte CRC field used for error checking
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