AWS Certified Solutions Architect - Associate
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A company is building an application that consists of several microservices. The company has decided to use container technologies to deploy its software on AWS. The company needs a solution that minimizes the amount of ongoing effort for maintenance and scaling. The company cannot manage additional infrastructure.
Which combination of actions should a solutions architect take to meet these requirements? (Choose two.)
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A
Deploy an Amazon Elastic Container Service (Amazon ECS) cluster.
B
Deploy the Kubernetes control plane on Amazon EC2 instances that span multiple Availability Zones.
C
Deploy an Amazon Elastic Container Service (Amazon ECS) service with an Amazon EC2 launch type. Specify a desired task number level of greater than or equal to 2.
D
Deploy an Amazon Elastic Container Service (Amazon ECS) service with a Fargate launch type. Specify a desired task number level of greater than or equal to 2.
E
Deploy Kubernetes worker nodes on Amazon EC2 instances that span multiple Availability Zones. Create a deployment that specifies two or more replicas for each microservice.
Explanation:
Explanation
Key Requirements Analysis:
- Minimizes ongoing effort for maintenance and scaling - The company wants a managed solution
- Cannot manage additional infrastructure - They need a serverless or fully managed approach
- Container technologies on AWS - Need container orchestration
Option Analysis:
A. Deploy an Amazon Elastic Container Service (Amazon ECS) cluster. ✅
- Amazon ECS is a fully managed container orchestration service
- AWS manages the control plane, reducing operational overhead
- Supports both EC2 and Fargate launch types
B. Deploy the Kubernetes control plane on Amazon EC2 instances ❌
- Requires managing the Kubernetes control plane infrastructure
- Increases maintenance effort (contrary to requirements)
- Amazon EKS would be the managed alternative
C. Deploy ECS service with EC2 launch type ❌
- While ECS is managed, EC2 launch type requires managing the underlying EC2 instances
- Company would need to manage scaling, patching, and maintenance of EC2 instances
- Doesn't fully minimize infrastructure management
D. Deploy ECS service with Fargate launch type ✅
- AWS Fargate is serverless compute for containers
- No infrastructure to manage - AWS handles provisioning, scaling, and management
- Specifying desired task number ≥ 2 ensures high availability across multiple Availability Zones
- Perfectly matches "cannot manage additional infrastructure" requirement
E. Deploy Kubernetes worker nodes on EC2 instances ❌
- Requires managing EC2 instances for worker nodes
- Increases maintenance and scaling effort
- Doesn't minimize infrastructure management
Why A & D are the correct combination:
- A provides the managed container orchestration platform (ECS)
- D uses Fargate launch type which eliminates infrastructure management
- Together they provide a fully managed solution where AWS handles:
- Container orchestration (ECS)
- Underlying infrastructure (Fargate)
- Scaling and maintenance
- Desired task number ≥ 2 ensures high availability and resilience
Alternative Perspective:
- Amazon EKS with Fargate would also meet requirements but wasn't an option
- The combination of ECS + Fargate provides the most managed solution among the choices
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