This post explains what happens when you type www.google.com into a web browser. It constitutes Lesson 7 of the module How data flow through the Internet. After completing this lesson you will be able to apply everything you learned in this module to answer the very common Network Engineering interview question, what happens when you type […]
When you type www.google.com into a browser Read More »
This post discusses several important network protocols and their functions. It constitutes Lesson 6 of the module How data flow through the Internet. This lesson offers a brief explanation of common network protocols and their functions. The network protocols discussed here are covered at a depth commensurate with the overall goal of this module of
Network protocols and their functions Read More »
Who is Ottawa-based Hagai Amiel? And why did Hagai Amiel (and his wife Hen Amiel Tomer) contact me on LinkedIn and Facebook with bizarre and moronic messages? I had never met or heard of Hagai Amiel (or his wife Hen Amiel Tomer) before being “contacted” by them on social media. And why did Hagai Amiel change his LinkedIn profile name to Guy Amiel
Who is Ottawa-based Hagai Amiel? Read More »
This post discusses how routers facilitate communication between networks. It constitutes Lesson 5 of the module How data flow through the Internet. This lesson looks at everything routers do to facilitate communication between networks. Key concepts discussed in this post include the difference between a router and a host, the routing table, the ARP table,
How routers facilitate communication Read More »
This post discusses how switches facilitate communication within a network. It constitutes Lesson 4 of the module How data flow through the Internet. This lesson looks at everything switches do to facilitate communication within a network. Key concepts discussed in this post include the MAC address table, the four functions of switches (learning, flooding, forwarding,
How switches facilitate communication Read More »
This post discusses host to host communication in networking. It constitutes Lesson 3 of the module How data flow through the Internet. This lesson looks at everything hosts do to send and receive data on the wire. Key concepts discussed in this post include the Address Resolution Protocol (ARP), how hosts in the same network
Host to host communication in networking Read More »
