SAA-C03 · Question #514
A finance company hosts a data lake in Amazon S3. The company receives financial data records over SFTP each night from several third parties. The company runs its own SFTP server on an Amazon EC2…
The correct answer is B. Migrate the SFTP server to AWS Transfer for SFTP. Update the DNS record sftp.example.com in. The optimal way to improve reliability and scalability of SFTP on AWS is to use AWS Transfer Family (for SFTP). It provides a fully managed SFTP server integrated with Amazon S3. No EC2 instances or infrastructure management is required. AWS Transfer Family supports custom DNS…
Question
A finance company hosts a data lake in Amazon S3. The company receives financial data records over SFTP each night from several third parties. The company runs its own SFTP server on an Amazon EC2 instance in a public subnet of a VPC. After the files are uploaded, they are moved to the data lake by a cron job that runs on the same instance. The SFTP server is reachable on DNS sftp.example.com through the use of Amazon Route 53. What should a solutions architect do to improve the reliability and scalability of the SFTP solution?
Options
- AMove the EC2 instance into an Auto Scaling group. Place the EC2 instance behind an Application
- BMigrate the SFTP server to AWS Transfer for SFTP. Update the DNS record sftp.example.com in
- CMigrate the SFTP server to a file gateway in AWS Storage Gateway. Update the DNS record
- DPlace the EC2 instance behind a Network Load Balancer (NLB). Update the DNS record
How the community answered
(24 responses)- A4% (1)
- B83% (20)
- C8% (2)
- D4% (1)
Explanation
The optimal way to improve reliability and scalability of SFTP on AWS is to use AWS Transfer Family (for SFTP). It provides a fully managed SFTP server integrated with Amazon S3. No EC2 instances or infrastructure management is required. AWS Transfer Family supports custom DNS domains (e.g., sftp.example.com) and allows integration with existing authentication mechanisms like LDAP, AD, or custom identity providers. Files are uploaded directly to S3, eliminating the need for cron jobs to move data from EC2 to S3. Built-in high availability and scalability removes the burden of managing infrastructure. A and D still require manual scaling, server maintenance, and cron jobs. C (Storage Gateway) is used for hybrid file access, not for replacing an SFTP server.
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