Exam AWS-SysOps topic 1 question 666 discussion

Straight from AWS Sample Exam Questions: An ecommerce company wants to lower costs on its nightly jobs that aggregate the current day's sales and store the results in Amazon S3. The jobs run on multiple on-demand instances, and the jobs take just under 2 hours to complete. The jobs can run at any time during the night. If the job fails for any reason, it needs to be started from the beginning. Which solution is the MOST cost-effective based on these requirements? A) Purchase Reserved Instances. B) Submit a request for a Spot block. C) Submit a request for all Spot Instances. D) Use a mixture of On-Demand and Spot Instances. B – The solution will take advantage of Spot pricing, but by using a Spot block instead of Spot Instances, the company can be assured the job will not be interrupted.

should be B. defined-duration workload, you can now launch Spot instances that will run continuously for a finite duration (1 to 6 hours). Pricing is based on the requested duration and the available capacity, and is typically 30% to 45% less than On-Demand, with an additional 5% off during non-peak hours for the region. https://aws.amazon.com/blogs/aws/new-ec2-spot-blocks-for-defined-duration-workloads/

A Spot block is a type of Spot Instance that allows you to specify a predefined duration (1 to 6 hours) for running your instances. Spot Instances are spare EC2 instances offered at significantly discounted prices compared to On-Demand instances. By using Spot Instances, the company can take advantage of the lower cost and potentially reduce their expenses for nightly job execution.

Cost + Job cant be restarted for two hours= Spot block

B is the answer As the jobs are under 2 hours and can be run anytime. spot block would be the best option

B. Submit a request for a Spot block to be used for job execution.

I'll go with B

B 100% ..... AWS wrote: https://d1.awsstatic.com/training-and-certification/docs-sysops-associate/AWS-Certified-SysOps-Administrator-Associate-Sample-Questions-v1.5_FINAL.pdf

B. Submit a request for a Spot block to be used for job execution.

B. Submit a request for a Spot block to be used for job execution.

if you by a spot block and the and some of the jobs fail occationally what will happen. it will cost more in the end. RI for a year will be cheaper.

should be B.

Correct answer is B.. https://d1.awsstatic.com/training-and-certification/docs-sysops-associate/AWS-Certified-SysOps-Administrator-Associate-Sample-Questions-v1.5_FINAL.pdf

D should be correct

B Spot block allows you to 'reserve a spot instance' for up to 6 hours https://aws.amazon.com/blogs/aws/new-ec2-spot-blocks-for-defined-duration-workloads/

Spot Block => Refers the Block Duration of the time . Hence Ans B wins. Ans D is One time. so not.

B seems to be correct