Which AWS data transfer direction usually incurs the highest cost?

easy📝 Conceptual Q2 of 15

AWS - Cost Optimization

AData transfer between EC2 instances in the same region

BData transfer from AWS to the internet

CData transfer between EC2 instances in the same AZ

DData transfer from S3 to EC2 in the same region

Step-by-Step Solution

Solution:

Step 1: Identify typical cost patterns
Data transfer out to the internet usually costs more than transfers within AWS infrastructure.
Step 2: Compare with other options
Transfers within the same region or AZ are cheaper or free, and S3 to EC2 in the same region is free.
Final Answer:
Data transfer from AWS to the internet usually costs the most -> Option B
Quick Check:
Internet outbound transfer = Highest cost [OK]

Quick Trick: Internet outbound data transfer costs most [OK]

Common Mistakes:

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