PDE Ingesting and Processing the Data Practice Question

A data engineer needs to schedule a nightly transfer of data from an Amazon S3 bucket to Cloud Storage. Which two steps are required to achieve this? (Choose TWO.)

⚠ Common exam trap

Google often tests the misconception that you can use a simple command-line tool like `gsutil rsync` in a cron job for production-scale scheduled transfers, but the correct approach is to use the managed Storage Transfer Service which handles permissions, scheduling, and reliability natively.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Grant appropriate permissions to the transfer service account

The Storage Transfer Service uses a Google-managed service account to access the source S3 bucket. You must grant this service account the appropriate IAM permissions (e.g., `s3:GetObject` and `s3:ListBucket`) on the S3 bucket via an AWS IAM policy. Without these permissions, the transfer job cannot read the data from S3.

Quick reference

AWS S3 Storage Class Comparison

Storage Class	Min Duration	Retrieval	Use Case
S3 Standard	None	Immediate	Frequently accessed data
S3 Standard-IA	30 days	Immediate	Infrequent access, rapid retrieval
S3 One Zone-IA	30 days	Immediate	Non-critical infrequent data
S3 Intelligent-Tiering	None	Immediate–hours	Unknown or changing access patterns
S3 Glacier Instant	90 days	Milliseconds	Archive with instant retrieval
S3 Glacier Flexible	90 days	Minutes–hours	Archive, flexible retrieval
S3 Glacier Deep Archive	180 days	Hours	Long-term compliance archive

Go deeper

PDE Ingesting and Processing the Data Practice Question

Why each option matters

AWS S3 Storage Class Comparison

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