1. What is framing in link layer? 2. If all the links in the Internet were to provide reliable delivery service, would the TCP reliable delivery service be redundant? Why or why not? 3. Name three...

1. What is framing in link layer?

2. If all the links in the Internet were to provide reliable delivery service, would the TCP reliable delivery service be redundant? Why or why not?

3. Name three error-detection strategies employed by link layer.