1Z0-997-25 Question 138
Single answerA medical research organization needs to migrate approximately 100 TB of internal patient data to Oracle Cloud Infrastructure (OCI) within three weeks. Their on-premises data center has only a 100 Mbps internet connection, and leadership demands minimal manual effort. Which solution best addresses these requirements for securely moving the large dataset to OCI within the desired timeframe?
- A
Use the OCI Data Transfer service by shipping data on encrypted disks or an appliance
- B
Manually upload data directly to OCI Object Storage over the 100 Mbps link
- C
Set up an IPsec VPN and continuously replicate data to OCI
- D
Reconfigure on-premises infrastructure to compress and upload data using a third-party tool only
Show answer and explanation
Correct answer: A
Explanation
OCI Data Transfer service provides dedicated disk or appliance-based options designed for bulk data migration when the available network bandwidth is insufficient or when strict deadlines apply. This approach decreases reliance on on-premises upload speeds and automates many aspects of secure data transfer. For more information, see Oracle� official documentation on Data Transfer: https://docs.oracle.com/en-us/iaas/Content/DataTransfer/Concepts/overview.htm
- A. Correct.
Option 1: Correct. OCI Data Transfer allows you to ship large amounts of data on encrypted disks or appliances to an Oracle transfer site, significantly reducing migration time. It is designed precisely for large-scale migrations when network bandwidth is limited or time constraints are tight.
- B. Incorrect.
Option 2: Incorrect. Uploading 100 TB of data over a 100 Mbps connection would be highly time-consuming and likely exceed the three-week window. Even with parallel processes, this method is inefficient for such large data volumes.
- C. Incorrect.
Option 3: Incorrect. Although possible, a site-to-site VPN with continuous replication over a 100 Mbps line remains too slow for 100 TB in three weeks, especially for a data set that large. It also involves more complexity in managing continuous data synchronization.
- D. Incorrect.
Option 4: Incorrect. While compression tools can reduce data size, relying on manual third-party uploads with no specialized service for large data migration still risks time overruns, complicating the migration process.