AWS Certified Solutions Architect Associate (SAA-C02) Exam Prep Course - EC2 Instance Purchase Options

The video tutorial explores various EC2 instance purchase options in AWS, including on-demand, reserved, and spot instances, as well as advanced options like savings plans and dedicated hosts. It highlights the cost implications of each option and introduces the concept of per-second billing, which offers more cost-efficient usage of cloud resources.

What is the typical purchasing method for EC2 instances in AWS?

• Dedicated hosts

• On-demand instances

• Spot instances

• Reserved instances

How can reserved instances help in cost savings?

• By scheduling instances for specific times

• By allowing bidding on unused capacity

• By offering a discount for long-term commitment

• By providing a dedicated physical server

What is a key feature of spot instances?

• They require a long-term contract

• They are dedicated to a single user

• They allow bidding on unused capacity

• They are always available at a fixed price

Which purchasing option is similar to reserved instances but offers more flexibility?

• Savings plans

• Dedicated hosts

• Spot instances

• Capacity reservations

What is the purpose of dedicated hosts in AWS?

• To save costs by sharing resources

• To schedule instances for specific times

• To provide a physical server dedicated to a single user

• To allow bidding on unused capacity

What billing change did AWS implement for on-demand instances?

• From per-day to per-hour billing

• From per-second to per-minute billing

• From per-hour to per-second billing

• From per-minute to per-hour billing

Why did AWS shift to per-second billing for on-demand instances?

• To encourage long-term usage

• To make billing fairer for short-term usage

• To simplify billing

• To increase revenue