A company wants to migrate to the AWS Cloud. The company needs the ability to acquire resources when the resources are necessary. The company also needs the ability to release those resources when the

Question

Options

• AElasticity
• BAvailability
• CReliability
• DDurability

• A
  91% (61)
• B
  1% (1)
• C
  6% (4)
• D
  1% (1)

Explanation

Elasticity is correct because it refers to the cloud's ability to automatically scale resources up or down based on demand - acquiring resources when needed and releasing them when they are no longer required, which perfectly matches the scenario described.

• Availability (B) is incorrect because it refers to a system's ability to remain accessible and operational, not to scaling resources dynamically.
• Reliability (C) is incorrect because it refers to a system's ability to recover from failures and function correctly over time, not resource acquisition/release.
• Durability (D) is incorrect because it refers to the long-term preservation of data (e.g., data persisting without loss), which is unrelated to scaling resources.

Memory Tip: Think of elasticity like a rubber band - it stretches when you need more and contracts when you need less. If a question mentions scaling up/down or acquiring and releasing resources, elasticity is almost always the answer.

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