Microsoft Azure Solutions Architect Expert AZ-305 Practice Question
You are planning a migration of 80 TB of video files that reside on an on-premises NAS to Azure. The available internet link averages 50 Mbps, so management wants the bulk of the data moved by shipping hardware. After the initial upload, about 200 GB of new and modified files will be generated each month and must be replicated automatically to an Azure Blob Storage account with minimal operational effort. Which solution should you recommend?
Order an Azure Data Box for the initial seed transfer, then deploy Azure Data Box Gateway to handle ongoing incremental replication to Azure Blob Storage.
Use AzCopy with checkpoint-restart capability to upload all data over the WAN and schedule monthly jobs for incremental copies.
Configure Azure File Sync with a cloud endpoint in Azure Blob Storage and perform the initial synchronization over the internet.
Migrate the data by using Azure Database Migration Service with an offline export followed by continuous sync tasks.
Azure Data Box provides about 100 TB of raw (≈80 TB usable) capacity and is designed for one-time, offline transfers in the 40-500 TB range. You can order the appliance, copy the 80 TB locally at high speed, and then ship it back to Microsoft for ingestion into your Azure Storage account. After seeding, deploying Azure Data Box Gateway as an on-premises virtual appliance enables continuous synchronization over the existing WAN link. The gateway uploads only changed data blocks, easily handling the expected 200 GB per month with minimal administration.
AzCopy over a 50 Mbps connection would take well over a month to upload 80 TB and would still require manual scheduling for recurring jobs. Azure File Sync targets Azure Files, not Blob Storage. Azure Database Migration Service is intended for structured databases, not unstructured file content.
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Microsoft Azure Solutions Architect Expert AZ-305
Design infrastructure solutions
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