3 Amazon EFS File Storage Online Quiz Questions

It reserves storage capacity for the file system.

It provides network access to the file system from a VPC.

It chooses the performance mode for clients.

It copies the file system into the client's local directory.

True

False

Choose EFS when one host needs a block device attached directly to it.

Choose EFS when an application accesses objects only through an API.

Choose EFS when multiple compute clients need shared files through familiar file-system paths.

Choose EFS only when each compute client needs a separate storage volume.

Supported container or serverless applications using shared persistent files

Giving every instance an isolated file system with no shared access

Users or development instances accessing common home-directory files

Multiple compute instances reading shared datasets and writing results

True

False

Provisioned throughput, because it is intended for unpredictable spikes

Elastic throughput, because demand is unpredictable and spiky

Bursting throughput, because EFS has no other throughput modes

General Purpose performance mode, because it determines throughput capacity

Choose One Zone because it stores data redundantly across multiple Availability Zones.

Choose Regional because it stores data in only one Availability Zone.

Choose One Zone if the workload accepts the additional availability risk for a different cost profile.

Choose either type because both store data in a single Availability Zone.

Ensure the instance can reach a mount target in the VPC.

Allow inbound NFS traffic only from any public source, regardless of the client security group.

Allow inbound TCP port 2049 on the mount target's security group from the client's security group.

Ensure the client is permitted to send the NFS traffic.

Choose Max I/O for the lowest per-operation latency; it is the default for One Zone.

Choose Max I/O for every workload because it is the current recommended mode.

Consider Max I/O for highly parallel work that tolerates higher per-operation latency, but not with One Zone or Elastic throughput.

Choose Max I/O whenever a workload needs Elastic throughput.

Attach a separate block volume to each EC2 instance and copy files between them.

Use one EFS file system that multiple EC2 instances mount.

Store the files in object storage and access them only through its API.

Create a local directory on each instance and synchronize it manually.

Choose a Regional file system.

Choose a One Zone file system.

Create a separate One Zone file system in each Availability Zone.

Use a mount target as the file system's redundant storage.

Allow inbound HTTP traffic on TCP port 80 from the client.

Allow inbound SSH traffic on TCP port 22 from the client.

Allow inbound NFS traffic on TCP port 2049 from the client's security group.

Allow inbound DNS traffic on UDP port 53 from the client's security group.

True

False