Q.1. Why does IPv6 use separate extension headers instead of fields in a single, fixed header?
Q.2. What endpoint values must be specified by an application that engages in 1-to-1 communication? In 1-to-many? In many-to-1?
Q.3. Calculate the size of the largest possible UDP message. (Hint: the entire UDP message must fit in an IP datagram.)
The largest size of a UDP message is 1450 octets. Although it can support a size of 1500 octets, room must be left for the IP and UDP headers.
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