1. What is the major function of the network access layer? 2. What tasks are performed by the transport layer? 3. What is a protocol? 4. What is a protocol architecture? 5. What is TCP/IP? 6. What is the purpose of the Sockets interface? 7. a. The French and Chinese prime ministers need to come to an agreement by telephone, but neither speaks the other’s language. Further, neither has on hand a

translator that can translate to the language of the other. However, both prime

ministers have English translators on their staffs. Draw a diagram similar to

Figure 17.8 to depict the situation, and describe the interaction at each layer.

b. Now suppose that the Chinese prime minister’s translator can translate only into

Japanese and that the French prime minister has a German translator available.A

translator between German and Japanese is available in Germany. Draw a new

diagram that reflects this arrangement and describe the hypothetical phone

conversation.