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Let's explore some advanced options

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for CloudFront that can come up in the exam.

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So let's talk about pricing and price classes.

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So we know that CloudFront edge locations

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are all around the world,

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but because they're all around the world,

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the cost of data out per edge location will vary,

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and so, here is a table.

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So as you can see,

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based on the continent or geographic region

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that the edge location is in,

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then you will have a different pricing.

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So if you look at this table, you're going to see numbers,

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but if you look at Mexico, United States, and Canada,

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the first 10 terabytes

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is going to cost $0.085 per gigabytes,

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but if you have the same edge location as India,

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it's going to be about twice the cost at $0.17 per gigabyte

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of data transferred, and so on.

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And the more data transferred out of CloudFront,

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the lower the cost, so if you transfer

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over five petabytes of data out of CloudFront,

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you're only going to pay $0.02 out of the United States.

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So, the idea is that from the left hand side

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to the right hand side, you have a higher cost.

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Which brings us to the price classes.

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So you have a choice you can make,

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and you can reduce the number

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of edge locations around the world that is going to be used

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for your CloudFront distribution

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in order to do cost reduction.

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And there are three price classes available,

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there is the Price Class All,

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which is giving you all regions,

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and obviously, the best performance,

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but it's going to cost you a little bit more money

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because as you can see for example

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an edge location in India will cost more

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than an edge location in the United States.

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You can do the Price Class 200,

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which gives you most regions,

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but excludes the most expensive regions,

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and Price Class 100 to only get the least expensive regions,

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and this is summarized in this table.

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Now, the table is not really fun to look at,

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so I made a little diagram.

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Here is the world,

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and we have a lot of edge locations around the world.

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Now, the Price Class 100 is going to give us the America,

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the North America, and Europe,

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then Price Class 200 is going to add some of these regions,

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and Price Class All

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is going to have the entire world available

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for the edge locations.

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So that's it for this lecture, I hope you liked it,

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and I will see you in the next lecture.