A company will run a predictable compute workload on Amazon EC2 instances for the next 3 years. The workload is critical for the company. The company wants to optimize costs to run the workload. Which

Question

Options

• ASpot Instances
• BDedicated Hosts
• CSavings Plans
• DOn-Demand Instances

• A
  6% (3)
• B
  2% (1)
• C
  78% (40)
• D
  14% (7)

Explanation

Explanation

Savings Plans are the optimal choice here because they offer significant discounts (up to 72%) compared to On-Demand pricing in exchange for a commitment to a consistent amount of compute usage over a 1 or 3-year term - perfectly matching the company's predictable, long-term, critical workload while optimizing costs.

Why the distractors are wrong:

• Spot Instances (A) are cheapest but can be interrupted at any time by AWS, making them unsuitable for critical workloads requiring reliability.
• Dedicated Hosts (B) provide physical server dedication, which is useful for licensing compliance, but they are significantly more expensive and don't optimize costs for standard compute workloads.
• On-Demand Instances (D) offer full flexibility with no commitment, but they are the most expensive option for consistent, long-running workloads.

Memory Tip: Think of it this way - "Predictable + Long-term = Savings Plans". Whenever an exam question combines known duration (1 or 3 years), consistent usage, and cost optimization, Savings Plans is almost always the answer. Reserve Spot Instances only for fault-tolerant, non-critical tasks.

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