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Compute

AWS services for computing and running applications.

AWS compute services for running applications and processing data, including virtual servers, serverless, and container services. Key services are Amazon EC2, AWS Lambda, Amazon Elastic Container Service (ECS), and Amazon Elastic Kubernetes Service (EKS).
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Compute in AWS refers to the cloud resources that process workloads and applications. At its core, Amazon EC2 (Elastic Compute Cloud) provides resizable virtual servers called instances that can be launched with various configurations of CPU, memory, storage, and networking capacity. These instances run on physical servers in AWS data centers but are virtualized for flexibility and scalability. AWS offers several compute options beyond EC2: - AWS Lambda enables serverless computing where you upload code and AWS handles all provisioning and scaling automatically. You pay only for execution time. - Amazon Lightsail provides simplified virtual private servers for small applications and websites with predictable pricing. - AWS Batch helps run batch computing workloads at scale. - Amazon ECS (Elastic Container Service) and EKS (Elastic Kubernetes Service) manage containerized applications. - AWS Fargate is a serverless compute engine for containers. Compute services typically use Auto Scaling to automatically adjust capacity based on demand, saving costs during low traffic periods while ensuring availability during spikes. Elastic Load Balancing distributes incoming traffic across multiple instances for better fault tolerance. AWS compute follows a shared responsibility model where AWS manages the infrastructure, while customers manage their operating systems, applications, and data. Compute resources can be deployed across multiple Availability Zones for high availability. Pricing models for compute include On-Demand (pay-as-you-go), Reserved Instances (lower hourly rate with upfront commitment), Spot Instances (bid for unused capacity at steep discounts), and Savings Plans (commitment to consistent usage). Compute is a fundamental building block in AWS architecture that works alongside storage, networking, and database services to create complete cloud solutions.

Compute in AWS refers to the cloud resources that process workloads and applications. At its core, Amazon EC2 (Elastic Compute Cloud) provides resizable virtual servers called instances that can be l…

Concepts covered: Amazon EC2, AWS Local Zones, Amazon EC2 instance types, AWS Batch, AWS Outposts, AWS Wavelength, Amazon Lightsail, AWS Elastic Beanstalk

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CCP - Compute Example Questions

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Question 1

Which Amazon EC2 instance type is optimized for memory-intensive applications and offers the lowest cost per GiB of RAM?

Correct Answer: R5 instances

R5 instances are the best choice for memory-intensive applications on Amazon EC2. They are optimized for workloads that require high memory per vCPU and offer the lowest cost per GiB of RAM among EC2 instance types. C5 instances are optimized for compute-intensive workloads and do not prioritize memory. M5 instances provide a balance of resources but are not specifically optimized for memory-intensive applications. I3 instances are designed for I/O intensive workloads with high-speed NVMe SSD storage, but not necessarily for memory-intensive applications.

Question 2

What is the primary benefit of using Amazon EC2 Spot Instances?

Correct Answer: Significant cost savings for workloads that can tolerate interruptions

The primary benefit of using Amazon EC2 Spot Instances is significant cost savings for workloads that can tolerate interruptions. Spot Instances allow you to bid on unused EC2 capacity at a discounted price, which can result in savings of up to 90% compared to On-Demand instances. However, Spot Instances can be interrupted by AWS with a two-minute notification when the Spot price exceeds your maximum bid price or when the capacity is no longer available. Therefore, they are suitable for fault-tolerant, flexible applications that can handle interruptions, such as batch processing, data analysis, or testing. The other options are incorrect because Spot Instances do not guarantee uninterrupted capacity, do not automatically scale based on metrics, and do not provide dedicated physical servers for exclusive use.

Question 3

Which of the following is a feature of Amazon EC2 that allows you to distribute incoming traffic across multiple instances in different Availability Zones?

Correct Answer: Elastic Load Balancing

Elastic Load Balancing is the feature of Amazon EC2 that allows you to distribute incoming traffic across multiple instances in different Availability Zones. It automatically distributes incoming application traffic across multiple EC2 instances and can also distribute traffic across instances in multiple Availability Zones for high availability and fault tolerance. Auto Scaling groups can be used to automatically add or remove EC2 instances based on demand, but they do not distribute traffic on their own. Elastic IP addresses provide static IP addresses that can be dynamically remapped to different EC2 instances, but they do not distribute traffic. Virtual Private Cloud subnets allow you to create isolated networks within AWS, but they do not distribute traffic across instances.

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