Answer all questions fully with no plagiarism and credible references.

1 Discuss TCP/IP and network standards in around 400 words. 

2 Give a non-network example of hierarchical addressing and discuss how it reduces the amount of work needed in physical delivery. Do not use the postal service, or the telephone network. Answer in detail.

3 A router that has the routing table receives an incoming IPv4 packet. The source IPv4 address in the arriving packet is 10.55.72.234. The destination IPv4 address is 10.4.6.7. The TTL value is 1. The Protocol Field value is 6. What will the router do with this packet? (Hint: Carefully consider all the fields in the IP and TCP headers. Think like a router.) Give a detailed answer.

Must be done in APA format.