Advanced Networking Administrator Test Prep

Answer: A - The Identification field fragments datagrams to allow different MTUs in the Internet.

Key Takeaway: The HLEN field uses 4 bits to specify the number of 32-bit words in the header. Type of Service uses 32 bits and shows how datagrams should be handled. The Total length field uses 32 bits to specify the total length of the header and data. The Identification field uses 4 bits and provides fragmentation of datagrams to allow different MTUs in the internet.