AWS Certified Solutions Architect – Professional SAP-C01 – Question374 - AWS Certified Solutions Architect

You want to mount an Amazon EFS file system on an Amazon EC2 instance using DNS names. Which of the following generic form of a mount target's DNS name must you use to mount the file system?

A. availability-zone.file-system-id.efs.aws-region.amazonaws.com
B. efs-system-id.availability-zone.file-aws-region.amazonaws.com
C. $file-system-id.$availability-zone.$efs.aws-region.$amazonaws.com
D. #aws-region.#availability-zone.#file-system-id.#efs.#amazonaws.com

Correct Answer: A

Explanation:

Explanation: An Amazon EFS file system can be mounted on an Amazon EC2 instance using DNS names. This can be done with either a DNS name for the file system or a DNS name for the mount target. To construct the mount target’s DNS name, use the following generic form: availability-zone.file-system-id.efs.aws-region.amazonaws.com
Reference:
http://docs.aws.amazon.com/efs/latest/ug/mounting-fs.html#mounting-…