Question: 1) How is a TCP/IP network different from a telephone network? 2) What is an FQDN ? Why are hostnames not used on the Internet,

1) How is a TCP/IP network different from a telephone network?

2) What is an FQDN? Why are hostnames not used on the Internet, but only FQDNs?

3) Name three important features of DNS. What advantages does DNS have over the hosts file?

4) When A sends data to B over a network connection using public key cryptography, how does A achieve the goals of (i) authentication, (ii) confidentiality.

5) Why is HTTP called a stateless protocol? What is meant by the Keep-Alive feature?

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