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Consider the transportation analogy in Section 6.1.1. If the passenger is analogous to a datagram, what is analogous to the link layer frame? What are
- Consider the transportation analogy in Section 6.1.1. If the passenger is analogous to a datagram, what is analogous to the link layer frame?
- What are some of the possible services that a link-layer protocol can offer to the network layer? Which of these link-layer services have corresponding services in IP? In TCP?
- Describe polling and token-passing protocols using the analogy of cocktail party interactions.
- What is ARP and what does it do?
- Why is an ARP query sent within a broadcast frame? Why is an ARP response sent within a frame with a specific destination MAC address?
- Consider Figure 6.15. How many sub-networks are there, in the addressing sense of Section 4.3?
- Compare CSMA/CD to CSMA/CA for wireless networks.
- Name at least 3 differences between a physical address and an IP address?
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