Match the characteristic to the forwarding method. (Not all options are used.)

Question:
Match the characteristic to the forwarding method. (Not all options are used.)

Answer

Sort elements
cut-through (A) -> low latency (A)*
cut-through (B) -> may forward runt frames (B)*
cut-through (C) -> begins forwarding when the destination address is received (C)*
store-and-forward (D) -> always stores the entire frame (D)*
store-and-forward (E) -> checks the CRC before forwarding (E)*
store-and-forward (F) -> checks the frame length before forwarding (F)

Explanation: A store-and-forward switch always stores the entire frame before forwarding, and checks its CRC and frame length. A cut-through switch can forward frames before receiving the destination address field, thus presenting less latency than a store-and-forward switch. Because the frame can begin to be forwarded before it is completely received, the switch may transmit a corrupt or runt frame. All forwarding methods require a Layer 2 switch to forward broadcast frames.

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