Which term describes a field in the IPv4 packet header used to identify the next level protocol?
- protocol
- destination IPv4 address
- source IPv4 address
- TTL
| Explanation & Hint:
The term that describes a field in the IPv4 packet header used to identify the next-level protocol is “protocol.” In the IPv4 header, the “Protocol” field is an 8-bit field that specifies the protocol used in the data portion of the packet, indicating which higher-level protocol is being carried within the IP packet. Common values for this field include 6 for TCP (Transmission Control Protocol) and 17 for UDP (User Datagram Protocol), among others. |