AWS Certified Cloud Practitioner
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A company wants to reduce the cost of its Amazon EC2 instances. The applications that run on the instances cannot tolerate interruptions. The instances must remain in operation for at least 1 year.
Which purchasing options should the company use to meet these requirements? (Select TWO.)
Real Exam
Community
RRitesh
A
Reserved Instances
B
Spot Instances
C
AWS Marketplace subscriptions
D
Savings Plans
E
Dedicated Hosts
Explanation:
Explanation
Reserved Instances and Savings Plans are the correct choices because:
Reserved Instances
-
Provide significant cost savings (up to 72% compared to On-Demand pricing)
-
Offer 1-year or 3-year commitment terms, meeting the "at least 1 year" requirement
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Guarantee capacity availability
-
No interruptions - instances run continuously
Savings Plans
-
Provide flexible pricing model with similar savings to Reserved Instances
-
Offer 1-year or 3-year commitment terms
-
No interruptions to running instances
-
Can be applied across instance families and regions
Why other options are incorrect:
Spot Instances: These can be interrupted with 2-minute warning when AWS needs capacity back, so they don't meet the "cannot tolerate interruptions" requirement.
AWS Marketplace subscriptions: These are for software licensing costs, not EC2 instance pricing optimization.
Dedicated Hosts: While they provide physical server isolation, they don't inherently provide cost savings compared to Reserved Instances or Savings Plans for long-term workloads.
Both Reserved Instances and Savings Plans provide the cost optimization needed while ensuring uninterrupted operation for the required 1-year minimum duration.
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