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Exam AWS Certified Solutions Architect - Associate SAA-C03 All Questions

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Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 124 discussion

A company has a highly dynamic batch processing job that uses many Amazon EC2 instances to complete it. The job is stateless in nature, can be started and stopped at any given time with no negative impact, and typically takes upwards of 60 minutes total to complete. The company has asked a solutions architect to design a scalable and cost-effective solution that meets the requirements of the job.
What should the solutions architect recommend?

  • A. Implement EC2 Spot Instances.
  • B. Purchase EC2 Reserved Instances.
  • C. Implement EC2 On-Demand Instances.
  • D. Implement the processing on AWS Lambda.
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Suggested Answer: A 🗳️

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Kapello10
Highly Voted 2 years, 4 months ago
Selected Answer: A
Cant be implemented on Lambda because the timeout for Lambda is 15mins and the Job takes 60minutes to complete Answer >> A
upvoted 25 times
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Evangelia
Highly Voted 2 years, 5 months ago
spot instances
upvoted 6 times
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Neil_12345678
Most Recent 1 month, 1 week ago
Selected Answer: D
Ec2 by themselves are not "scalable" unless they are under an autoscaling group.The question also says that the job can be started and stopped with no negative impact.So even if the execution time of 15mins runs out, it can be started again to complete the 60 mins job. Hence my answer is D
upvoted 1 times
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jaradat02
8 months, 1 week ago
Selected Answer: A
A is the correct answer, we can't use lambda because it's limit is 15 mins.
upvoted 2 times
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thewalker
1 year, 2 months ago
Selected Answer: A
There is a chance of interrupting the jobs, but as they can be started and stopped at any given time, the MOST COST effective is going for Spot.
upvoted 4 times
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Ruffyit
1 year, 5 months ago
Spot Instances provide significant cost savings for flexible start and stop batch jobs. Purchasing Reserved Instances (B) is better for stable workloads, not dynamic ones. On-Demand Instances (C) are costly and lack potential cost savings like Spot Instances. AWS Lambda (D) is not suitable for long-running batch jobs.
upvoted 3 times
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tom_cruise
1 year, 5 months ago
Selected Answer: A
key: can be started and stopped at any given time with no negative impact
upvoted 4 times
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AbhilashDyadav
1 year, 5 months ago
Selected Answer: A
Spot can do that
upvoted 1 times
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Guru4Cloud
1 year, 7 months ago
Selected Answer: A
The key reasons are: Spot can provide significant cost savings (up to 90%) compared to On-Demand. Since the job is stateless and can be stopped/restarted anytime, the intermittent availability of Spot is not an issue. Spot supports the same instance types as On-Demand, so optimal instance types can be chosen. For a 60+ minute batch job, the chance of Spot interruption is low. But if it happens, the job can just be restarted. Reserved Instances don't offer any advantage for a highly dynamic job like this. Lambda is not a good fit given the long runtime requirement.
upvoted 4 times
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cookieMr
1 year, 9 months ago
Selected Answer: A
Spot Instances provide significant cost savings for flexible start and stop batch jobs. Purchasing Reserved Instances (B) is better for stable workloads, not dynamic ones. On-Demand Instances (C) are costly and lack potential cost savings like Spot Instances. AWS Lambda (D) is not suitable for long-running batch jobs.
upvoted 1 times
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beginnercloud
1 year, 9 months ago
Selected Answer: A
A is correct
upvoted 1 times
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alexiscloud
2 years ago
Answer A: typically takes upwards of 60 minutes total to complete.
upvoted 1 times
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Buruguduystunstugudunstuy
2 years, 3 months ago
Selected Answer: A
The correct answer is Option A. To design a scalable and cost-effective solution for the batch processing job, the solutions architect should recommend implementing EC2 Spot Instances. EC2 Spot Instances allow users to bid on spare Amazon EC2 computing capacity and can be a cost-effective solution for stateless, interruptible workloads that can be started and stopped at any time. Since the batch processing job is stateless, can be started and stopped at any time, and typically takes upwards of 60 minutes to complete, EC2 Spot Instances would be a good fit for this workload.
upvoted 2 times
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k1kavi1
2 years, 3 months ago
Selected Answer: A
Spot Instances should be good enough and cost effective because the job can be started and stopped at any given time with no negative impact.
upvoted 1 times
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career360guru
2 years, 3 months ago
Selected Answer: A
Option A
upvoted 1 times
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Wpcorgan
2 years, 4 months ago
A is correct
upvoted 1 times
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SimonPark
2 years, 5 months ago
Selected Answer: A
A is the answer
upvoted 1 times
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