Your organization runs MongoDB on-premises and has an Azure Cosmos DB account configured with the MongoDB API. You are planning the migration and currently include the Data Management Gateway tool in the plan. Evaluate that statement: which replacement makes it correct?

The correct replacement is mongorestore. This is a native MongoDB tool specifically designed for restoring data from a MongoDB BSON dump, which is the format typically used for backups or exports from an on-premises MongoDB instance. Since Azure Cosmos DB's MongoDB API is compatible with MongoDB tools, mongorestore is the most direct and efficient method for migrating data. Data Management Gateway is an older, deprecated tool primarily used for connecting on-premises data sources to Azure data services like Azure Data Factory, but not for direct MongoDB data migration. Azure Storage Explorer is used for managing data in Azure storage accounts (blobs, files, queues, tables), not for migrating MongoDB data directly. AzCopy is a command-line utility for copying data to and from Azure Blob, File, and Table storage, and is not suitable for MongoDB database migration.