Storage transfer service in GCP - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ service_behavior

intermediate

Understanding Storage Transfer Service Scheduling

You configure a Storage Transfer Service job to run daily at 2 AM UTC. The source is an AWS S3 bucket, and the destination is a Google Cloud Storage bucket. What happens if the job fails at 2 AM due to network issues?

A The job automatically retries later the same day until it succeeds.

B The job immediately retries continuously until it succeeds or is manually stopped.

C The job retries only once after 1 hour and then stops if it fails again.

D The job does not retry and waits until the next scheduled run the following day.

💡 Hint

Think about how scheduled jobs typically behave when they fail at their scheduled time.

Storage Transfer Service jobs scheduled for a specific time run once at that time. If the job fails, it does not retry automatically on the same day. It waits until the next scheduled run.

❓ Configuration

intermediate

Configuring Transfer Options for Data Integrity

You want to ensure that files transferred from an AWS S3 bucket to a Google Cloud Storage bucket using Storage Transfer Service are not corrupted during transfer. Which transfer option should you enable?

A Enable 'Verify checksum' to check data integrity after transfer.

B Enable 'Delete source files after transfer' to avoid duplicates.

C Enable 'Overwrite objects at destination' to replace existing files.

D Enable 'Transfer only new files' to skip existing files.

💡 Hint

Data integrity means making sure the file is exactly the same after transfer.

Enabling 'Verify checksum' makes Storage Transfer Service compare checksums of source and destination files to ensure data integrity.

❓ Architecture

advanced

Designing a Cross-Cloud Backup Solution

You need to design a backup solution that transfers data daily from an on-premises NAS to Google Cloud Storage using Storage Transfer Service. The NAS supports SMB protocol only. Which architecture component is required to enable this transfer?

A Set up a Storage Transfer Service agent on-premises to enable access to the SMB share.

B Use a Google Cloud Storage Transfer Appliance to physically move data to the cloud.

C Configure Storage Transfer Service to directly access the SMB share as a source.

D Mount the SMB share on a VM in Google Cloud and use Storage Transfer Service from that VM.

💡 Hint

Storage Transfer Service supports certain sources natively. Think about how to get SMB data into a supported source.

Storage Transfer Service does not support SMB shares directly. You must install the Storage Transfer Service agent on a host machine that has read access to the SMB share.

❓ security

advanced

Securing Access for Storage Transfer Service

You want to restrict Storage Transfer Service so it can only access a specific Google Cloud Storage bucket and no other resources in your project. Which IAM role and permission setup is the most secure and appropriate?

A Grant the Storage Admin role on the project to the Storage Transfer Service service account.

B Grant the Storage Transfer Service Agent role on the entire project to the service account.

C Grant the Storage Object Admin role only on the specific bucket to the Storage Transfer Service service account.

D Grant the Owner role on the specific bucket to the Storage Transfer Service service account.

💡 Hint

Least privilege principle means giving only the permissions needed.

Granting Storage Object Admin on the specific bucket limits access to only that bucket, following least privilege best practice.

✅ Best Practice

expert

Optimizing Large Data Transfers with Storage Transfer Service

You have a 50 TB dataset in an AWS S3 bucket that you need to transfer to Google Cloud Storage as quickly and cost-effectively as possible using Storage Transfer Service. Which approach follows best practices?

A Run a single Storage Transfer Service job with default settings to transfer all data at once.

B Split the dataset into smaller prefixes and create multiple parallel Storage Transfer Service jobs for each prefix.

C Use Storage Transfer Service with the 'Delete source files after transfer' option enabled to save storage costs.

D Transfer the data during peak hours to maximize network bandwidth availability.

💡 Hint

Think about how parallelism and workload division affect transfer speed and reliability.

Splitting large datasets into smaller parts and running parallel transfer jobs improves throughput and reduces transfer time, following best practices.