Scenario like the NASA question:

• Upload 3 GB from the internet using S3TA
• Result: S3TA did not accelerate

Correct billing logic:

1) No S3TA charge if it’s not likely faster.
2) Data transfer **from the internet into AWS** is not charged. 
→ So the exam answer: **no transfer charges** for that upload.

Hard words:

• *ingress* /ˈɪnɡres/: chiều vào (internet → AWS)
• *egress* /ˈiːɡres/: chiều ra (AWS → internet)