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Which EC2 pricing model allows you to pay only for the compute time you use without any long-term commitment?

easy📝 Conceptual Q11 of 15
AWS - EC2 Fundamentals
Which EC2 pricing model allows you to pay only for the compute time you use without any long-term commitment?
ADedicated hosts
BReserved instances
CSpot instances
DOn-demand instances
Step-by-Step Solution
Solution:
  1. Step 1: Understand On-demand pricing

    On-demand instances let you pay per hour or second without any upfront commitment.
  2. Step 2: Compare with other models

    Reserved requires commitment; Spot can be interrupted; Dedicated hosts are physical servers.
  3. Final Answer:

    On-demand instances -> Option D
  4. Quick Check:

    Pay-as-you-go = On-demand [OK]
Quick Trick: No commitment means On-demand pricing [OK]
Common Mistakes:
MISTAKES
  • Confusing Reserved with On-demand
  • Thinking Spot is always available
  • Mixing Dedicated hosts with pricing models

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