What benefit does store-and-forward switching provide?
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Correct answer: It delivers largely error-free traffic by using CRC checks before forwarding.
Why this is the answer
Store-and-forward switching receives the entire frame and computes the Cyclic Redundancy Check (CRC) before forwarding. This ensures that only error-free frames are transmitted, delivering largely error-free traffic. "It reduces latency by eliminating error checking within the frame" describes cut-through switching, which prioritizes speed over error checking. "It buffers frames and forwards them regardless of frame errors" is incorrect; store-and-forward specifically checks for errors. "It forwards a frame after checking only the destination MAC address" also describes cut-through switching, specifically its fast-forward variant, which begins forwarding as soon as the destination MAC is read, without waiting for the entire frame or performing a CRC check.
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