Exam AWS Certified Cloud Practitioner topic 1 question 236 discussion

key word: cannot be interrupted (not B), no long-term commitment(not D) or upfront payment(not C)

On-Demand Instances allow you to pay for compute capacity on an hourly or per-second basis with no upfront commitment or long-term contract. You can launch instances whenever you need them and stop or terminate them when they are no longer required. There is no long-term commitment, and you only pay for the hours or seconds that the instances are running.

option C - On - Demand Instances - keyword - cannot be interrupted , no long term commitment or upfront payment

A: On-demand instances https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-on-demand-instances.html "We recommend that you use On-Demand Instances for applications with short-term, irregular workloads that cannot be interrupted."

Why is it A

C is correct

A is the answer

AWS recommends using On-Demand Instances for applications with short-term, irregular workloads that cannot be interrupted. They are also suitable for use during testing and development of applications on EC2.

A is the correct answer

A is the answer.

On-demand instances are a purchasing option for Amazon EC2 instances that allows users to pay for the instances they use on an hourly basis, with no long-term commitment or upfront payment required. On-demand instances are a cost-effective option because they are well-suited for workloads that are unpredictable or that do not require a long-term commitment, and they give you the flexibility to increase or decrease your usage as needed.

no upfront and no long term so A is answer

reserved also can be no up-front payment

1. Cannot be interrupted. 2. No commitment/ upfront payment

on-demand has no interruption and no upfront payment

why not D? reserved instances are cheaper than on demand

A is correct. About Spot Instances Spot Instance interruption – Amazon EC2 terminates, stops, or hibernates your Spot Instance when Amazon EC2 needs the capacity back. Amazon EC2 provides a Spot Instance interruption notice, which gives the instance a two-minute warning before it is interrupted.