Internet Performance for Dummies

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Chapter 1: What Internet Performance Is and Why It Matters 7 These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. traversed a network's switches, firewalls, routers and various other devices; and is now on her merry way to your website or Internet‐facing application. However, this "before" stage happens before the user has started traversing your net- work's switches, firewalls, routers, and various other devices to get to the data center server that will actually render your website or application. Broadly, this "in between" encompasses the following: ✓ Internet Service Provider (ISP) networks ✓ Domain Name System (DNS) services ✓ Content Delivery Networks (CDNs) ✓ Cloud Providers The characteristics that define Internet Performance include the following: ✓ Availability ✓ Reachability ✓ Speed ✓ Security ✓ Cost efficiencies ✓ Increased revenue History of the World (Wide Web), Part I Okay, although it's probably not as entertaining as Mel Brooks's History of the World, Part I, I've included a brief his- tory of the Internet. Understanding how the Internet has evolved from its origins in the 1960s to become the Internet of Things (IoT) underpinning today's global economy is key to understanding why Internet Performance matters. If you haven't seen Mel Brooks' History of the World, Part I, your homework assignment is to download or stream it on the World Wide Web — which you're about to learn all about — and analyze how Internet Performance impacts how much you enjoy the movie!

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