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Question 693 - SAA-C03 discussion

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A solutions architect is creating an application that will handle batch processing of large amounts of data. The input data will be held in Amazon S3 and the ou data will be stored in a different S3 bucket. For processing, the application will transfer the data over the network between multiple Amazon EC2 instances.

What should the solutions architect do to reduce the overall data transfer costs?

A.
Place all the EC2 instances in an Auto Scaling group.
Answers
A.
Place all the EC2 instances in an Auto Scaling group.
B.
Place all the EC2 instances in the same AWS Region.
Answers
B.
Place all the EC2 instances in the same AWS Region.
C.
Place all the EC2 instances in the same Availability Zone.
Answers
C.
Place all the EC2 instances in the same Availability Zone.
D.
Place all the EC2 instances in private subnets in multiple Availability Zones.
Answers
D.
Place all the EC2 instances in private subnets in multiple Availability Zones.
Suggested answer: C

Explanation:

Requirement Analysis: The application involves batch processing of large data transfers between EC2 instances.

Data Transfer Costs: Data transfer within the same Availability Zone (AZ) is typically free, while cross-AZ transfers incur additional costs.

Implementation:

Launch all EC2 instances within the same Availability Zone.

Ensure the instances are part of the same subnet to facilitate seamless data transfer.

Conclusion: Placing all EC2 instances in the same AZ reduces data transfer costs significantly without affecting the application's functionality.

Reference

AWS Pricing: AWS Data Transfer Pricing

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asked 16/09/2024
Josef Anwar Panerio
37 questions
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