AWS Certified Solutions Architect – EFS Study Questions

General

What is mount target?

Can you mount an EFS file system in more than one VPC at a time?

Can you use EFS file system in multiple VPCs at a time?

Can EC2 instances in one VPC can access EFS file systems in another VPC? If yes, how do you do it?

Can EFS file system and VPC be in different regions? If yes, how do you do it?

To connect your Amazon EFS file system to your Amazon EC2 instance, you’ll need to create two security groups: one for your XXX and another for your YYY?

https://docs.aws.amazon.com/efs/latest/ug/accessing-fs-create-security-groups.html

Which inbound protocol type and port range do you use for XXX? (E.g.: HTTP and 80)

https://docs.aws.amazon.com/efs/latest/ug/accessing-fs-create-security-groups.html

Which inbound protocol type and port range you use to the YYY security group to allow inbound access from the security group of XXX?

https://docs.aws.amazon.com/efs/latest/ug/accessing-fs-create-security-groups.html

Which inbound protocol type is used EFS in security group?

https://docs.aws.amazon.com/efs/latest/ug/accessing-fs-create-security-groups.html#create-security-groups-console

AWS uses NFS protocol for EFS. Is NFS is an encrypted protocol?

Amazon EFS supports two forms of encryption for file systems, what are they?

Could anyone on the same physical network sniff the traffic?

https://aws.amazon.com/blogs/aws/new-vpc-traffic-mirroring/

Amazon EFS supports two forms of encryption for file systems. What are they?

https://docs.aws.amazon.com/efs/latest/ug/encryption.html

How do you enable encryption of data in transit?

https://docs.aws.amazon.com/efs/latest/ug/encryption.html#encryption-in-transit

How do you enable the encryption at rest?

https://docs.aws.amazon.com/efs/latest/ug/encryption.html#encryption-in-transit

Amazon EFS Performance

What is the throughput in AWS?

What are the difference between the performance and throughput modes?

https://docs.aws.amazon.com/efs/latest/ug/performance.html

What are the different performance modes?

https://docs.aws.amazon.com/efs/latest/ug/performance.html#performancemodes

Which performance mode is selected for you by default if you don’t choose a performance mode when you create your file system?

Which performance mode is suitable for use cases, like use cases, like web serving environments, content management systems, home directories, and general file serving?

Which performance mode is ideal for scaling to higher levels of aggregate throughput and operations per second? What is the trade-off of scaling?

Which performance mode is suitable for big data analysis, media processing, and genomics analysis?

What are the two throughput modes?

https://docs.aws.amazon.com/efs/latest/ug/performance.html#throughput-modes

Which throughput mode do you choose when throughput on Amazon EFS scales as a file system stored in the standard storage class grows?

Which throughput mode do you choose when you can instantly provision the throughput of your file system (in MiB/s) independent of the amount of data stored?

If your file system is in the Provisioned Throughput mode, can you increase the Provisioned Throughput of your file system as often as you want?

Which throughput do I need to choose?

https://cloud.netapp.com/blog/efs-provisioned-throughput-mode

Amazon mentions about development tools, web serving, and content management applications specifically for XXX mode.

Check “Using the Right Throughput Mode” section in https://docs.aws.amazon.com/efs/latest/ug/performance.html#throughput-modes

EFS Diagrams

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