My containerized application requires me to define and manage capacity(CPU, Memory, Instance type) explicitly for optimizing costs while using AWS infrastructure. Which of the following technologies will I use while defining my Elastic Container Services compute instances

Answer options:

A.EC2
B.Fargate
C.Lambda
D.Either of B or C since they are serverless technologies that are cost effective

Correct Answer: A
Elastic Container Services supports two launch types for deploying containers mainly the EC2 type & the Fargate type. Fargate provides infrastructure automation for provisioning compute instances as required. Since our scenario requires explicit control of CPU & Memory resources for launching the container instances, EC2 will be the most appropriate type.
Option A is CORRECT since the user will have complete control over the VM configuration & the OS.
Option B is incorrect since Fargate automates infrastructure provisioning where a user may have limited control
Option C is incorrect since Lambda is a serverless technology & is not used within a service containerization context
Option D is incorrect since serverless technologies although may be lucrative from a cost standpoint will not have complete user control over configuring the compute instances
Diagram:
Reference:
https://aws.amazon.com/ecs/?whats-new-cards.sort-by=item.additionalFields.postDateTime&whats-new-cards.sort-order=desc&ecs-blogs.sort-by=item.additionalFields.createdDate&ecs-blogs.sort-order=desc