Serverless Computing Basics

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Questions and Answers

What is a primary difference between using Amazon EC2 and serverless computing?

The need to manage security in Amazon EC2

The ability to run code in multiple languages

The necessity to upload code in Amazon EC2

The requirement to provision instances in Amazon EC2 (correct)

What is a benefit of using serverless computing?

The flexibility to scale applications automatically (correct)

The need to manage servers

Limited support for multiple programming languages

Increased upfront costs

What is a key feature of AWS Lambda?

Payment only for consumed compute time (correct)

Charges for idle instances

Required manual scaling

Fixed monthly subscription fees

What is an advantage of using AWS Lambda for backend services?

Zero administration for the backend service Signup and view all the answers

In serverless computing, what is adjusted to scale applications?

Units of consumption, such as throughput and memory Signup and view all the answers

What is an example of a task that can be automated using a Lambda function?

Automatically resizing uploaded images to the AWS Cloud Signup and view all the answers

What is the primary advantage of using AWS Lambda?

Only paying for compute time used Signup and view all the answers

What is the primary purpose of containerization?

To ensure consistent application environments Signup and view all the answers

What is the primary difference between Amazon ECS and Amazon EKS?

Amazon ECS is for Docker containers, while Amazon EKS is for Kubernetes Signup and view all the answers

What is the primary advantage of using AWS Fargate?

Eliminating the need to provision and manage servers Signup and view all the answers

What is the primary benefit of using container orchestration services?

Simplifying the deployment and management of containerized applications Signup and view all the answers

What is the primary purpose of AWS Lambda function triggers?

To trigger the execution of code in response to events Signup and view all the answers

What is the primary advantage of using Docker containers?

Ensuring consistent application environments Signup and view all the answers

What is the primary purpose of Kubernetes?

To deploy and manage containerized applications at scale Signup and view all the answers

What is the primary benefit of using Amazon ECS?

Enabling the deployment of Docker containers Signup and view all the answers

What is the primary advantage of using a containerized approach?

Reducing time spent debugging applications Signup and view all the answers

Study Notes

Serverless Computing

Serverless computing allows you to run code without provisioning or managing servers
Focus is on innovating new products and features, rather than maintaining servers
Benefits include scalability, where capacity can be adjusted by modifying units of consumption (e.g. throughput, memory)

AWS Lambda

A service that lets you run code without provisioning or managing servers
Pay only for the compute time consumed
Charges apply only when code is running
Can run code for virtually any type of application or backend service with zero administration

How AWS Lambda Works

Upload code to Lambda
Set code to trigger from an event source (e.g. AWS services, mobile apps, HTTP endpoints)
Lambda runs code only when triggered
Pay only for the compute time used

Containers

Provide a standard way to package application code and dependencies into a single object
Used for processes and workflows requiring security, reliability, and scalability
Help ensure consistent application environments across different deployments

Container Orchestration

Container orchestration services help deploy, manage, and scale containerized applications
Amazon Elastic Container Service (Amazon ECS) and Amazon Elastic Kubernetes Service (Amazon EKS) are two services that provide container orchestration

Amazon Elastic Container Service (Amazon ECS)

A highly scalable, high-performance container management system
Enables running and scaling containerized applications on AWS
Supports Docker containers

Amazon Elastic Kubernetes Service (Amazon EKS)

A fully managed service for running Kubernetes on AWS
Enables deploying and managing containerized applications at scale
Maintained by a large community of volunteers, with AWS actively contributing

AWS Fargate

A serverless compute engine for containers
Works with both Amazon ECS and Amazon EKS
Manages server infrastructure for you, allowing focus on innovating and developing applications
Pay only for the resources required to run containers

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Description

Learn the basics of serverless computing and how it differs from traditional computing with virtual servers. Understand the benefits of focusing solely on code.