Examkin

Question

Difficulty: MediumHigh-Performing and Scalable Storage Solutions

A company runs a containerized microservices application on Amazon ECS using AWS Fargate across 22 Availability Zones. The application requires shared, POSIX-compliant file storage that can handle highly unpredictable read/write spikes, support sub-millisecond (less than 1 ms1\text{ ms}) latencies for metadata operations, and dynamically scale throughput without manual intervention or administrative overhead.

Which two Amazon EFS configurations should a solutions architect select to meet these requirements? (Choose two.)

  1. Amazon EFS configured with General Purpose performance modeAnswer
  2. Amazon EFS configured with Elastic throughput modeAnswer
  3. C
    Amazon EFS configured with Max I/O performance mode
  4. D
    Amazon EFS configured with Provisioned throughput mode
  5. E
    Amazon EFS Archive storage class set as the primary target for active workloads

Answer

The application requires Amazon EFS configured with General Purpose performance mode and Elastic throughput mode.
The correct configuration is Amazon EFS configured with General Purpose performance mode and Elastic throughput mode. General Purpose performance mode is optimized for latency-sensitive applications and provides sub-millisecond latencies for metadata operations. Elastic throughput mode automatically scales throughput capacity in response to workload activity, allowing the system to handle unpredictable spikes without manual provisioning or administrative overhead.

Step-by-Step Solution

1
Analyze the access and protocol requirements.
The application runs on AWS Fargate across 22 Availability Zones and requires a shared, POSIX-compliant file system, which identifies Amazon EFS as the appropriate service.
Amazon EFS is natively integrated with AWS Fargate and supports multi-AZ POSIX-compliant shared file access.
2
Select the appropriate EFS performance mode based on latency constraints.
Choose General Purpose performance mode instead of Max I/O performance mode.
General Purpose performance mode provides sub-millisecond latencies for metadata and file operations, matching the requirements.
3
Select the appropriate EFS throughput mode based on traffic patterns and management overhead.
Choose Elastic throughput mode instead of Provisioned throughput mode.
Elastic throughput mode scales throughput capacity dynamically to handle unpredictable bursts without manual provisioning or administrative overhead.

Key Concept

Selecting the optimal performance and throughput configurations for Amazon EFS to meet latency and dynamic scaling requirements.
Estimated Time:2m 0s
Rate this question

Topics

High-Performing and Scalable Storage Solutions

More questions from this topic