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Difficulty: MediumAWS Compute Services

An AWS architect is designing solutions for various business workloads. Match each business workload requirement to the most appropriate AWS compute service.

  • Amazon EC2A legacy database application requiring full administrative (root) access to the guest operating system and custom kernel configuration.
  • AWS LambdaA short-running background microservice that automatically processes uploaded user avatars in response to Amazon S3 write events.
  • AWS FargateA containerized API backend where the development team wants to deploy Docker containers without managing the underlying virtual machines.
  • Amazon LightsailA simple WordPress blog for a small retail store that requires a virtual private server (VPS) with a predictable, low monthly price.

Answer

Amazon EC2 matches the legacy database application requiring administrative root access; AWS Lambda matches the short-running event-driven microservice; AWS Fargate matches the containerized API backend; and Amazon Lightsail matches the simple WordPress blog requiring predictable pricing.
Each service is correctly matched to its primary use case: Amazon EC2 for root OS access, AWS Lambda for event-driven serverless code execution, AWS Fargate for serverless container workloads, and Amazon Lightsail for simple VPS hosting with flat-rate pricing.

Step-by-Step Solution

1
Identify the workload requiring administrative OS access.
Amazon EC2 provides full control, including root/administrator access and custom kernel options.
To match the legacy application requirement.
2
Identify the workload that is short-running and event-triggered.
AWS Lambda runs code in response to S3 events and is serverless.
To match the event-driven avatar processing requirement.
3
Identify the containerized workload requiring zero host management.
AWS Fargate runs containers serverlessly, removing the operational overhead of EC2 instance management.
To match the serverless containerized API requirement.
4
Identify the workload looking for a simple VPS with flat monthly rates.
Amazon Lightsail provides an all-in-one VPS solution with simple management and predictable pricing.
To match the simple WordPress blog requirement.

Key Concept

Selecting AWS compute services based on business requirements, focusing on control, serverless scaling, container management, and pricing predictability.
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Topics

AWS Compute Services

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