[&] Which field in the IP packet header is used to indicate the relative priority value of packets? (Select the best answer)
- Discriminator
- Protocol
- Time to Live
- Type of Service -- Correct

[&] What happens to a packet that is received by a router with a TTL value of one(1)? (Select the best answer)
- The TTL field has no impact on packet forwarding.
- The TTL is left unchanged and the packet is forwarded to the next router.
- The TTL is increased to two(2) and the packet is forwarded to the next router.
- The TTL is decremented to zero(0) and the packet is discarded. -- Correct

[&] When a device receives an IP packet, how does it know if that packet is a fragment of a larger packet? (Select the best answer)
- By inspecting the Identification, Flags and Fragment Offset fields -- Correct
- By inspecting the Flags, Fragment Offset and Sequence fields
- By inspecting the Fragment Offset, Identification and Sequence fields
- By inspecting the Identification, Flags and Type of Service fields

[&] Which field in the IP packet header is used to indicate what type of data immediately follows the IP header? (Select the best answer)
- Next-Header
- Type
- Port
- Protocol -- Correct

[&] If an IP packet is received, and the Protocol field within the packet header contains a decimal value of 17, this means that the packet is carrying  \_\_\_\_\_\_? (Select the best answer)
- a TCP segment
- ICMP information
- IGMP information
- a UDP datagram -- Correct