Answer:
Preamble and SFD (start frame delimiter) fields help synchronize device communication but are not counted toward the frame's size.
Explanation:
Preamble is a seven byte (56 bits) field which is first field in Ethernet frame followed by SFD (start frame delimiter) which is 1 byte (8bits) long field it marks the end of preamble field and start of Ethernet frame and supports byte level synchronization.
