Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 76 discussion

DMS is for databases and here refers to “JSON files”. Public internet is not reliable. So best option is B.

***CORRECT*** The most reliable solution for transferring the data in a secure manner would be option B: AWS DataSync over AWS Direct Connect. AWS DataSync is a data transfer service that uses network optimization techniques to transfer data efficiently and securely between on-premises storage systems and Amazon S3 or other storage targets. When used over AWS Direct Connect, DataSync can provide a dedicated and secure network connection between your on-premises data center and AWS. This can help to ensure a more reliable and secure data transfer compared to using the public internet.

Ans B - keep it simple... private netwk + direct connection

near-real-time + large data + secure = DataSync over DirectConnect A: Less secure due to public internet C: Slow and not secure D: Slow even if more secure DC may not even work as we don't know if there is a DB on other side but even if it was there, it is less preferred way

Any DMS related-service will not be efficient because DMS can only process JSON files UPTO 2 MB in size https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.html so B is CORRECT

AWS DataSync is a data transfer service that uses network optimization techniques to transfer data efficiently and securely between on-premises storage systems and Amazon S3 or other storage targets. When used over AWS Direct Connect, DataSync can provide a dedicated and secure network connection between your on-premises data center and AWS. This can help to ensure a more reliable and secure data transfer compared to using the public internet.

Secure and Most reliable transfer = AWS DataSync over AWS Direct Connect

AWS DataSync is designed for large scale, high speed data transfer between on-prem and S3. Using AWS Direct Connect provides a dedicated, private connection for reliable, consistent data transfer. DataSync seamlessly handles data replication, encryption, recovery etc.

Not over public hence AC out / DMS is for databases and here refers to “JSON files”.

DataSync is a service specifically designed for data transfer and synchronization between on-premises storage systems and AWS storage services like S3. It provides reliable and efficient data transfer capabilities, ensuring the secure movement of large volumes of data. By leveraging Direct Connect, which establishes a dedicated network connection between the on-premises data center and AWS, the data transfer is conducted over a private and dedicated network link. This approach offers increased reliability, lower latency, and consistent network performance compared to transferring data over the public internet. Database Migration Service is primarily focused on database migration and replication, and it may not be the most appropriate tool for general-purpose data transfer like JSON files. Transferring data over the public internet may introduce potential security risks and performance variability due to factors like network congestion, latency, and potential interruptions.

Best option and correct is B

as Ariel suggested and rightly so.....DMS is for databases and here refers to “JSON files”. Public internet is not reliable. so B

Option B

Option B. DMS is not needed as there is no Database migration requirement.

Public internet options automatically out being best-effort. DMS is for database migration service and here they have to just transfer the data to S3. Hence B.

B is correct

B - A SAN presents storage devices to a host such that the storage appears to be locally attached. ( NFS is, or can be, a SAN - https://serverfault.com/questions/499185/is-san-storage-better-than-nfs ) - AWS Direct Connect does not encrypt your traffic that is in transit by default. But the connection is private (https://docs.aws.amazon.com/directconnect/latest/UserGuide/encryption-in-transit.html)