Introduction to AWS Elastic File System (EFS)

What is the main advantage of EFS for dynamic data applications?

• It allows for immediate updates and access to shared data.

• It provides enhanced security for static data.

• It reduces the cost of data storage significantly.

• It improves the speed of data retrieval for archived data.

What is AWS Elastic File System (EFS)?

• A file-level, fully managed storage service provided by AWS that can be accessed by multiple EC2 instances concurrently.

• A block-level storage service designed for high-performance applications.

• A database service that provides scalable storage for structured data.

• A content delivery network service that accelerates the delivery of web content.

What is the maximum file size supported by EFS?

• 10 TB

• 20 TB

• 47.9 TB

• 100 TB

What is the main characteristic of Amazon EFS?

• Highly scalable both in storage capacity and throughput performance.

• Limited to a fixed storage capacity.

• Requires manual scaling for performance improvements.

• Optimized for low-latency access only.

What is the main benefit of EFS for applications requiring shared file access?

• It ensures consistency across multiple EC2 instances accessing the same data.

• It provides unlimited storage capacity for all applications.

• It allows for faster data retrieval than local storage.

• It automatically backs up data to S3 for disaster recovery.

What is the scalability feature of EFS?

• EFS can automatically increase or decrease its storage capacity based on incoming data.

• EFS requires manual intervention to adjust storage capacity.

• EFS can only increase its storage capacity, not decrease it.

• EFS has a fixed storage capacity that cannot be changed.

What is the main characteristic of EFS's data redundancy?

• Data is stored in a single location for easy access.

• Data is stored in multiple availability zones for high durability.

• Data is compressed to save space.

• Data is encrypted for security purposes.

What are the limitations of AWS EFS?

• Supports only NFS protocol, maximum throughput of 1000 MB/s, and limited file and directory counts.

• Supports multiple protocols including SMB and NFS, with a maximum throughput of 500 MB/s.

• Unlimited file and directory counts with a maximum throughput of 2000 MB/s.

• Supports only NFS protocol, maximum throughput of 200 MB/s, and unlimited file counts.

What is the main characteristic of EFS's data transfer capabilities?

• It allows data transfer from on-premise to the cloud using AWS Data Sync.

• It supports real-time data streaming to multiple locations.

• It provides unlimited data storage without any transfer limits.

• It enables data transfer only within the same region.

What is the recommended method for connecting to EFS from EC2?

• EFS Mount Helper is the AWS-recommended and simpler solution.

• Using NFS version 4.1 directly without any helper.

• Creating a VPN connection to access EFS.

• Using AWS CLI commands exclusively for connection.