Key Principles (Pricing)

Question 1

Fundamentals drivers of AWS cost

Answer 1

Compute
Storage
Outbound data transfer

Question 2

Cost Optimisation

Answer 2

cloud allows you to trade fixed expenses (such as data centers and physical servers) for variable expenses, and only pay for IT as you consume it

Question 3

Flexibility

Answer 3

services are priced independently, transparently, and available on-demand, so you can choose and pay for exactly what you need

Question 4

On-Demand Instances

Answer 4

let you pay for compute or database capacity by the hour or second (minimum of 60 seconds) depending on which instances you run with no long-term commitments or upfront payments.

Question 5

Savings Plans

Answer 5

flexible pricing model that offer low prices on Amazon EC2, AWS Lambda and AWS Fargate usage, in exchange for a commitment to a consistent amount of usage (measured in $/hour) for a one- or three-year term.

Question 6

Spot Instances

Answer 6

Amazon EC2 pricing mechanism that let you request spare computing capacity with no upfront commitment and at discounted hourly rate (up to 90% off the on-demand price).

Question 7

Reservations

Answer 7

provide you with the ability to receive a greater discount, up to 75 percent, by paying for capacity ahead of time.