What should the company do to guarantee the EC2 capacity?

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In: SAA-C03
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A company needs guaranteed Amazon EC2 capacity in three specific Availability Zones in a specific AWS Region for an upcoming event that will last 1 week.

What should the company do to guarantee the EC2 capacity?

Purchase Reserved Instances that specify the Region needed.

Create an On-Demand Capacity Reservation that specifies the Region needed.

Purchase Reserved Instances that specify the Region and three Availability Zones needed.

Create an On-Demand Capacity Reservation that specifies the Region and three Availability Zones needed.

Explanations:

Purchasing Reserved Instances guarantees a lower price but does not guarantee specific capacity in Availability Zones.

An On-Demand Capacity Reservation specifies a Region but does not guarantee capacity in specific Availability Zones for the required duration.

While Reserved Instances can be purchased for specific Availability Zones, they do not guarantee capacity for an upcoming event since they do not reserve capacity directly.

Creating an On-Demand Capacity Reservation specifying the Region and three Availability Zones guarantees EC2 capacity for the specified duration needed.

2025-10-09

1 Comment

  1. Theresa
    Author

    I map out that the answer is:
    Create an On-Demand Capacity Reservation that specifies the Region and three Availability Zones needed.

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