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CLF-C02 practice question: Global infrastructure (2 of 2)

Cloud Technology and Services A free question from our original CLF-C02 practice exam. Try it, then open the answer to see why each option is right or wrong.

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A video-editing company's artists work in a city about 1,500 km from the nearest AWS Region.

They need EC2 workstation instances that respond with low latency, and the company wants AWS to run the physical infrastructure, not its own hardware.

Which option should it choose?

Choose one answer.

  1. A. A second Availability Zone in the nearest AWS Region, for resilience
  2. B. AWS Global Accelerator in front of instances in the nearest AWS Region
  3. C. Amazon CloudFront edge locations to host the workstation instances
  4. D. AWS Local Zones in the city, which run EC2 and EBS close to large population centers
Show the answer and explanation

Answer: D

  • A. Wrong: Availability Zones inside the same Region are still far from the artists. A second zone improves resilience, but it does not reduce latency for the workstations.
  • B. Wrong: Global Accelerator routes traffic over the AWS network to your endpoints, which speeds up the path. The workstation instances still run in the distant Region, so the latency goal is missed. Learn more: AWS Global Accelerator components (opens in a new tab)
  • C. Wrong: CloudFront edge locations cache content for delivery. They do not run EC2 instances, so they cannot host the workstations.
  • D. Right: Correct. Local Zones place compute and storage close to large population centers, and each one stays linked to a parent Region. AWS operates the infrastructure, and the artists get the low-latency instances they need. Learn more: What is AWS Local Zones? (opens in a new tab)

Explanation

Local Zones place compute, storage and database resources close to large population centers, while staying linked to a parent Region. A second Availability Zone or Global Accelerator leaves the workstations in the distant Region, and CloudFront edge locations cache content rather than running EC2 instances.

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