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DOP-C02 · Question #137

A company is using an organization in AWS Organizations to manage multiple AWS accounts. The company's development team wants to use AWS Lambda functions to meet resiliency requirements and is…

The correct answer is A. Update the EFS file system policy to provide Account B with access to mount and write to the EFS file D. Update the Lambda execution roles with permission to access the VPC and the EFS file system. E. Create a VPC peering connection to connect Account A to Account B. You can connect to Amazon EFS file systems from EC2 instances in other AWS regions using an inter-region VPC peering connection, and from on-premises servers using an AWS VPN

Submitted by ahmad_uae· Mar 6, 2026Resilient Cloud Solutions

Question

A company is using an organization in AWS Organizations to manage multiple AWS accounts. The company's development team wants to use AWS Lambda functions to meet resiliency requirements and is rewriting all applications to work with Lambda functions that are deployed in a VPC. The development team is using Amazon Elastic File System (Amazon EFS) as shared storage in Account A in the organization. The company wants to continue to use Amazon EFS with Lambda. Company policy requires all serverless projects to be deployed in Account B. A DevOps engineer needs to reconfigure an existing EFS file system to allow Lambda functions to access the data through an existing EFS access point. Which combination of steps should the DevOps engineer take to meet these requirements? (Choose three.)

Options

  • AUpdate the EFS file system policy to provide Account B with access to mount and write to the EFS file
  • BCreate SCPs to set permission guardrails with fine-grained control for Amazon EFS.
  • CCreate a new EFS file system in Account B. Use AWS Database Migration Service (AWS DMS) to
  • DUpdate the Lambda execution roles with permission to access the VPC and the EFS file system.
  • ECreate a VPC peering connection to connect Account A to Account B.
  • FConfigure the Lambda functions in Account B to assume an existing IAM role in Account A.

How the community answered

(25 responses)
  • A
    48% (12)
  • B
    28% (7)
  • C
    16% (4)
  • F
    8% (2)

Explanation

You can connect to Amazon EFS file systems from EC2 instances in other AWS regions using an inter-region VPC peering connection, and from on-premises servers using an AWS VPN

Topics

#AWS Lambda#Amazon EFS#VPC Peering#Cross-Account Access

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