Question: How do cookies work? What do they do? Be able to describe why cookies are useful in the context of a web transaction, say an

How do cookies work? What do they do? Be able to describe why cookies are useful in the context of a web transaction, say an eCommerce website.

What is HTTP persistence? Why is it important? What are some use cases for maintain web persistence?

Why are port numbers important to creating network sockets?

Be able to identify source and destination IP & Port numbers of a client-server communication.

Understand fundamentally how the DNS protocol, queries, hierarchy, and root DNS work.

What is the difference between a client server architecture and a peer to peer architecture? Which one is better for what types of applications and why?

What are some of the issues with P2P networks, why is the client-server model more common in businesses?

What is a top level domain? How are top level domains and country code level domains structured within DNS?

Know the difference between traceroute, ping, nslookup, and netstat commands and how to interpret their outputs.

Why are CDNs useful for delivering widely-accessible content across geographically disparate locations?

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