CEDIA ESPA EST Practice Test

Answer - C - The switching method that performs error checking on a message is Store-and-forward.

Key Takeaway: Store-and-forward switching copies the complete frame into the switch memory buffers and computes a cyclic redundancy check for errors. If an error is found, the frame is discarded. If the frame is error free, the switch forwards the frame from the appropriate interface port. It has the lowest frame forwarding speed.