DATA LINK LAYER WIRED NETWORKS
WIRED LANS ETHERNET PROTOCOL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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collision detecting
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frame error checking
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faster frame forwarding
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frame forwarding using IPv4 Layer 3 and 4 information
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Detailed explanation-1: -In the store-and-forward switching method, error checking is performed against the frame, and any frame with errors is discarded. With the cut-through switching method, no error checking is performed against the frame, which makes forwarding the frame through the switch faster than store-and-forward switches.
Detailed explanation-2: -The primary advantage of cut-through Ethernet switches, compared to store-and-forward Ethernet switches, is lower latency. Cut-through Ethernet switches can support an end-to-end network delay latency of about 10 microseconds.
Detailed explanation-3: -During the storage process, the switch analyzes the frame for information about its destination. In this process, the switch also performs an error check using the Cyclic Redundancy Check (CRC) trailer portion of the Ethernet frame.