Describe the structure of an Ethernet frame.

What will be an ideal response?

An Ethernet frame is composed of three parts. The first part is called the header. It contains the source and destination MAC addresses along with a 2-byte type field. The type field is a code that tells what network protocol is being used in the data portion of the frame. The second part of the frame is the data portion, which is referred to as the payload. This is the actual data that an application is sending across the network. The part also includes the header from the network protocol. The last part of a frame is the FCS, which contains an error-checking code called a CRC. It is the result of applying a mathematical formula to the data portion of the frame. It is used to verify that the frame was not damaged in transmission.