Which of the following statements is TRUE?
(A) Both Ethernet frame and IP packet include checksum fields
(B) Ethernet frame includes a checksum field and IP packet includes a CRC field
(C) Ethernet frame includes a CRC field and IP packet includes a checksum field
(D) Both Ethernet frame and IP packet include CRC fields
Answer: (C)
Explanation:
ETHERNET FRAME FORMAT:
1. It also called IEEE 802.3 protocol.
2. Used at data link layer, bus topology, CSMA/CD access control, NO acknowledgement used.
3. For securing CRC is used, more precisely, CRC-32 bit.
IP DATAGRAM FORMAT:
IP datagram uses 16-bit checksum.
So, ETHERNET->CRC and IP->checksum.
This solution is contributed by Sandeep pandey.
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