Topic 1 Question 20
An online gaming company needs to choose a purchasing option to run its Amazon EC2 instances for 1 year. The web traffic is consistent, and any increases in traffic are predictable. The EC2 instances must be online and available without any disruption. Which EC2 instance purchasing option will meet these requirements MOST cost-effectively?
On-Demand Instances
Reserved Instances
Spot Instances
Spot Fleet
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- 正解だと思う選択肢: B
The Correct answer is B.
Amazon EC2 Reserved Instances (RI) provide a significant discount (up to 72%) compared to On-Demand pricing and provide a capacity reservation when used in a specific Availability Zone. Terms (avg. discount off On-Demand) - 1yr (40%), 3yr (60%) https://aws.amazon.com/ec2/pricing/reserved-instances/
👍 4Anyio2023/10/15 - 正解だと思う選択肢: B
A. On-Demand Instances: Pay-as-you-go without upfront commitment; less cost-effective for consistent workloads.
B. Reserved Instances: Reserved Instances (RIs) provide a significant discount (compared to On-Demand Instances) in exchange for a commitment of one or three years. They are suitable for consistent, predictable workloads. RIs offer cost-effectiveness while ensuring the EC2 instances are online and available without disruptions.
C. Spot Instances: Bid for unused capacity; cost savings but may not provide consistent availability.
D. Spot Fleet: Collection of Spot Instances; offers flexibility but inherits characteristics of Spot Instances.
👍 3TheFivePips2024/01/24 B. Reserved Instances: Reserved Instances (RIs) provide a significant discount (compared to On-Demand Instances) in exchange for a commitment of one or three years. They are suitable for consistent, predictable workloads. RIs offer cost-effectiveness while ensuring the EC2 instances are online and available without disruptions.
👍 3anup777772024/03/20
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