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1. Specifies the length of the header in 32-bit words.
2. Indicates the position of the fragment in the original packet.
3. The actual data being transported by a packet, excluding header and trailer information.
4. A unique value used to identify the packet, primarily for reassembly purposes.
5. Specifies the IP address of the sender of the packet.
6. A set of rules that governs the format of data sent over a network.
7. Provides an indication of the abstract parameters of the quality of service desired.
8. The process of breaking down a large packet into smaller ones to fit the maximum transmission unit of a network.
9. The process of selecting paths in a network along which to send network traffic.
10. Specifies the IP address of the intended recipient of the packet.
11. A section of data that precedes the actual payload and contains control information.
12. A value used to verify the integrity of data during transmission.
13. Indicates the version of the Internet Protocol being used.
14. Specifies the maximum time the packet is allowed to remain in the network.
15. Used for error-checking the header to ensure data integrity.
16. A formatted unit of data carried by a packet-switched network.
17. Indicates the entire packet size, including both header and data, in bytes.