mod02

Question 1

ec2

Answer 1

secure sizeable compute capacity
boot server instances in minutes
pay only for what you use
supports: win, mac and linux

Question 2

AMI

Answer 2

Amazon Machine Image: OS + App
Launch AMI
Connect to the deployed instance
Use the instance
Approx: 2 minutes to deploy

Question 3

ec2 types instances

Answer 3

general purpose
compute optimized
memory optimized

Question 4

EC2 and AMI

Answer 4

Think of EC2 as the virtual hardware, and AMI as the software component. The AMI is “installed” in EC2, in the same way that a guest operating system would be installed in a virtual machine, on-premises.

Question 5

general purpose ec2

Answer 5

balances compute, memory and network resources
suitable for broad range of workloads

Question 6

compute optimiced ec2

Answer 6

high performance processors
ideal for compute intensive applications and batch processing

Question 7

ec2 memory optimized

Answer 7

delivers fast performance for memory-intensive workloads
well suited for high performance databases

Question 8

accelarated comp ec2

Answer 8

uses hardware accelerators to expedite data processing
idela for application streaming and graphics workloads

Question 9

storage optimized

Answer 9

suitable for distributed systems and datawarehouses
low latency in I/O operations

Question 10

ec2 pricing options

Answer 10

ondemand: no upfront cost or minimum contracts (one of the more expensive)
spot: ideal for workloads with flexible start and end times and offers savings over on demand prices (2 minutes warning)(saves 90%)
reserved: billing discount over ondemand pricing (50-70%) but requires a 1-3 years commitment
compute saving plan: up to 72% over on demand costs for a consistent amount of usage requires 1-3 years commitment
dedicated instance: ec2 instance that runs in a VPC on hardware for a singular customer and offers higher cost compared to the standard ec2 instance
dedicated host: psysical server with EC2 instance capacity for a single customer; the most expensive one

Question 11

ec2 autoscaling

Answer 11

scale capacity as computing reqs change
use dynamics scaling and predictive scaling

Question 12

autoscaling group

Answer 12

allows to EC2 to switch automatically between a minimum, desired and a maximum amount of instances based on demand

Question 13

elastic load balancing

Answer 13

it distributes traffic across multiple resources and it provides a single point of contact for tour autoscaling group

Question 14

SNS

Answer 14

messages are published to the topics
suscribers to the topic receive the message

Question 15

SQS

Answer 15

Send store and receive messages between software components
Queue messages without required

Question 16

aws lambda

Answer 16

run code without provisioning or managing servers
pay only for compute time while code is running
use other AWS services to automatically trigger code

Question 17

lambdasteps

Answer 17

upload code to lambda
set code to trigger from an event source
code runs only when triggered
pay only for the used computing

Question 18

containers

Answer 18

group or stack of apps and libraries to make them portable to be deployed over many containers without rely on the underlying OS

Question 19

ECS

Answer 19

runs and scale containerized applications
use simple API call to control docker enabled apps

Question 20

EKS

Answer 20

run and scale kubernetes
readily update apps with new features