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QuestionQ121

Managing implementation

A financial-services company is retiring one of its on-premises data centers. As part of this effort, it must perform a one-time migration of 500 ТВ of historical transaction archives to a Cloud Storage bucket for long-term retention.

The data center’s 1 Gbps internet egress is shared with critical business operations. You must complete the secure data transfer within a 60-day window to meet the decommissioning deadline. What should you do?

  • A Provision a Partner Interconnect connection with a 10 Gbps capacity to accelerate the data transfer, and then use Storage Transfer Service.
  • B Write a script that uses the gcloud storage cp --parallel command to upload the data in chunks over the public internet during off-peak hours.
  • C Use Storage Transfer Service to create an agent-based transfer job that moves the data from the on-premises file servers directly to the Cloud Storage bucket.
  • D Order a Transfer Appliance, copy the data to the appliance using your high-speed local network, and ship it back to Google to upload the data into your Cloud Storage bucket.
Explanation

Transfer Appliance is designed for large on-premises transfers when available network bandwidth is limited or cannot safely meet the required deadline. Copying the archives to the appliance over the high-speed local network and shipping it to Google avoids saturating the shared 1 Gbps internet connection; Google then uploads the data to the Cloud Storage bucket. A 500 ТВ online transfer at 1 Gbps would consume nearly the entire 60-day period even at uninterrupted theoretical throughput.

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