Compute Services

Question 1

EC2

Answer 1

A foundational service that lets you rent and manage virtual servers in the cloud.

Question 2

Ways to Access EC2

Answer 2

AWS Management Console, SSH, Instance Connect, and AWS Systems Manager

Question 3

EC2 Pricing Options

Answer 3

On Demand, Spot Instance, Reserved Instance, Dedicated hosts, and Savings plan

Question 4

EC2 On Demand

Answer 4

Fixed price, billed according to usage. Good for apps that are still in development, have unpredictable loads, or won’t run for longer than a year.

Question 5

EC2 Spot Instance

Answer 5

The cheapest pricing option! Grabbing unused capacity in the cloud. Usage depends on available space. Use when you don’t care about start or stop times, or workload can be interrupted.

Question 6

EC2 Reserved Instance

Answer 6

Commit to a specific instance type for 1 to 3 years. Use when your app has steady state usage, or for migrating software licenses.

Question 7

EC2 Dedicated Host

Answer 7

Reserve a dedicated, physical server in the cloud. Useful for migrating software licenses, or when you need to meet requirements for tenancy.

Question 8

EC2 Savings Plan

Answer 8

Commit to a level of usage, rather than a specific instance type, for 1 or 3 years. Use when you want to commit, but still want to be able to change compute services, instance types, OS or Regions. Can be shared across various services,

Question 9

Main features of EC2

Answer 9

Elastic load balancing and auto scaling

Question 10

Lambda

Answer 10

A server-less compute service that lets you run code without having to manage servers. Can be used for real-time file processing, sending email/SNS messages, and handling back end logic.

Question 11

Main Features of Lambda

Answer 11

Supports popular programming languages, write code in the provided console or upload code, execute code in response to events, functions cannot run longer than 15 mins.

Question 12

Lambda Pricing

Answer 12

Charged on duration and number of requests (function calls). Testing counts toward the number of requests. Free tier allows for 1 Million free requests every month.

Question 13

AWS Fargate

Answer 13

A serverless compute engine for containers, useful for working with Docker

Question 14

Lightsail

Answer 14

Deploy pre-configured apps, like Wordpress websites. Good for quickly launching all the resources needed for small projects.

Question 15

AWS Outposts

Answer 15

Run AWS cloud services on your internal data server for a hybrid architecture. AWS actually comes out to install for you.

Question 16

AWS Batch

Answer 16

Process large workloads in smaller chunks (batches).