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Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 94 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C02
Question #: 94
Topic #: 1
[All AWS Certified Solutions Architect - Associate SAA-C02 Questions]

An application requires a development environment (DEV) and production environment (PROD) for several years. The DEV instances will run for 10 hours each day during normal business hours, while the PROD instances will run 24 hours each day. A solutions architect needs to determine a compute instance purchase strategy to minimize costs.
Which solution is the MOST cost-effective?

  • A. DEV with Spot Instances and PROD with On-Demand Instances
  • B. DEV with On-Demand Instances and PROD with Spot Instances
  • C. DEV with Scheduled Reserved Instances and PROD with Reserved Instances
  • D. DEV with On-Demand Instances and PROD with Scheduled Reserved Instances
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by AjNapa at Aug. 9, 2020, 8:26 p.m.
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AjNapa
Highly Voted 2 years, 7 months ago
My vote is C. DEV with Scheduled Reserved Instances and PROD with Reserved Instance. But for Prod it says just 'Reserved' instances instead of Standard Reserved.
upvoted 94 times
rob_724
2 years, 7 months ago
probably assumed it is standard reserved
upvoted 1 times
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Lak09
2 years, 7 months ago
DEV with Scheduled Reserved Instances : We dont know which 10 hours out of 24, it could be intermittent and sporadic
upvoted 1 times
bleble00001
2 years, 7 months ago
"for 10 hours each day during normal business hours" ~> NORMAL BUSINESS HOURS is the key. So we know exactly when the DEV environments should be available...
upvoted 3 times
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aguy9
2 years, 6 months ago
I agree, answer is C
upvoted 4 times
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pr
2 years, 6 months ago
'C' must be true but as of today (05/03/21) - AWS do not have any capacity for purchasing Scheduled Reserved Instances or any plans to make it available in the future. To reserve capacity, use On-Demand Capacity Reservations instead. Ref: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-scheduled-instances.html
upvoted 11 times
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Paitan
Highly Voted 2 years, 7 months ago
It should be C. Standard Reserved for Prod and Scheduled Reserved for Dev is what we run in my company.
upvoted 10 times
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BATSIE
Most Recent 2 weeks, 3 days ago
Selected Answer: C
but jus know reserved scheduled instances are now defunct you now use on demand for it
upvoted 1 times
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yogi_1610
2 months, 2 weeks ago
Selected Answer: C
answer is C. since the requirement is for 7 years and reserved instances is the best option.
upvoted 1 times
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BATSIE
9 months ago
Selected Answer: C
Correct answer must have been on demand for dev and reserved instances for prod, because schedules reserved instances are no longer available
upvoted 1 times
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sezer
1 year, 2 months ago
whole answers anymore wrong scheled reserved instances dont exist anymore
upvoted 2 times
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seryum
1 year, 2 months ago
Selected Answer: D
Absolutely I agree, answer is D
upvoted 1 times
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MingH51
1 year, 4 months ago
Selected Answer: C
C, Schedule reserved instances should be surfficient
upvoted 1 times
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ludovikush
1 year, 6 months ago
Selected Answer: D
I would go for D since as of today the Scheduled Reserved Instanced are not available and On-Demand is a feasible alternative
upvoted 2 times
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Janoloco9
1 year, 8 months ago
Selected Answer: C
My vote is C. Choose Reserved Instances
upvoted 1 times
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Moathov
1 year, 9 months ago
Selected Answer: C
Answer is C
upvoted 1 times
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ns1231
1 year, 9 months ago
There are two confuse things. 1. Scheduled Reserved Instances are not available these days( policy problems) 2. The qestion mentioned cost-effectiveness, but on-demand is expensive ever
upvoted 1 times
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Aniketh
1 year, 10 months ago
Selected Answer: D
You cannot purchase Scheduled Reserved Instances at this time. AWS does not have any capacity available for Scheduled Reserved Instances or any plans to make it available in the future. To reserve capacity, use On-Demand Capacity Reservations instead. For discounted rates, use Savings Plans. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-scheduled-instances.html
upvoted 1 times
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naveenagurjara
1 year, 10 months ago
Selected Answer: C
A is way too costly.
upvoted 1 times
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Karthikeyan_nick
2 years ago
So the answer should be on-demand for dev and reserved for prod.
upvoted 2 times
Karthikeyan_nick
2 years ago
You cannot purchase Scheduled Reserved Instances at this time. AWS does not have any capacity available for Scheduled Reserved Instances or any plans to make it available in the future https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-scheduled-instances.html
upvoted 1 times
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Bennie
2 years, 1 month ago
D. If I were to answer this question today, I will choose D and this is my reason: You cannot purchase Scheduled Reserved Instances at this time. AWS does not have any capacity available for Scheduled Reserved Instances or any plans to make it available in the future. To reserve capacity, use On-Demand Capacity Reservations instead. For discounted rates, use Savings Plans.
upvoted 1 times
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iambunchester
2 years, 1 month ago
Selected Answer: C
Totes C
upvoted 1 times
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