What happens when a switch receives a frame and the calculated CRC value is different than the value that is in the FCS field?

What happens when a switch receives a frame and the calculated CRC value is different than the value that is in the FCS field?

• The switch notifies the source of the bad frame.
• The switch places the new CRC value in the FCS field and forwards the frame.
• The switch drops the frame.
• The switch floods the frame to all ports except the port through which the frame arrived to notify the hosts of the error.

Explanation: The purpose of the CRC value in the FCS field is to determine if the frame has errors. If the frame does have errors, then the frame is dropped by the switch.

Exam with this question: Introduction to Networks (Version 7.0) – ITNv7 Practice Final Exam