1. Explain the role of policy in a community.

1. Are rules meant for humans comparable to rules meant for machines?

1. What is the main principle at work in any cooperative enterprise such as a network? d. What consequences result from placing a computer in an environment that is controlled by external parties?

1. Using dig or nslookup, determine the answers to the following questions:

(1) What is the IP address of the host www.gnu.org?

(2) What are names of the nameservers for the domain gnu.org?

(3) Are ftp.iop.com and www.iop.com two different hosts?

(4) What is name of the mail exchanger for the domain iop.com?

6. What consequences result from placing a computer in an environment that

is controlled by external parties?

7. How does a computer know its IP address?

8. How does a computer know its Ethernet address?

9. What is a MAC address?