How does Ethernet work? Compared with the copper wire, what are the advantages of optical fiber?
Describe the most popular LAN technology. Describe the Ethernet frame. What are the two key technologies that make communication on the Internet possible? What is the virtual network?
What tasks mentioned in this chapter can be accomplished by IP?
What is encapsulation?
How can ICMP packets be transmitted across heterogeneous networks?
Describe the differences among the IP routing protocols: RIP, OSPF, and BGP.
What is the concern when we use PPTP for a VPN?
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