Aws Cloud Practitioner Stephane Maarek

network drive you can attach to your instances while they run -only one instance at a time -bound to a specific availability zone

Elastic Block Store

Make a backup of your EBS volume at a point in time

Amazon Machine Image

customization of an EC2 instance - built for a specific region

AWS provided

you make and maintain them yourself

an AMI someone else made (and potentially sells)

automated pipeline for the creation, maintainenance, validation, sharing, and deployment of Linux or Windows images for use on AWS and on-premises

managed NFS (network file system) that can be mounted on 100s of EC2

storage class that is cost-optimized for files not accessed every day

makes it easy and cost effective to launch and run popular file systems that are fully managed by AWS

used for business applications

used for high-performance computing

ability to accommodate a larger load by making the hardware stronger (scale up), or by adding nodes (scale out)

1. vertical 2. horizontal

increasing number of instances / systems for your application (distributed systems, such as web applications or modern applications) - Amazon EC2

increasing the size of the instance (common for non-distributed systems, such as a database) - limit of hardware

means running your application/system in at least 2 availability zones (goal is to survive data center loss)

once a system is scalable, there will be some "auto-scaling" so that the system can scale based on the load

servers that forward internet traffic to multiple servers (EC2 instances) downstream

- application - network - classic

(HTTP / HTTPS only) - Layer 7

(ultra-high performance, allows for TCP) - Layer 4

- user based - resource based - encryption

IAM policies - which API calls should be. allowed for a specific user from IAM console

- bucket policies - bucket wide rules from the S3 console - allows cross account - object access control list (ACL) - finer grain - bucket access control list (ACL) - less common

encrypt objects in Amazon S3 using encryption keys

- 99.99 availability - used for frequent access - low latency & high throughput - sustain 2 concurrent facility failures (big data analytics, mobile & gaming applications, content distribution)

- Suitable for data that is less frequently accessed, but requires rapid access when needed - 99.9% Availability - Lower cost compared to Amazon S3 Standard, but retrieval fee - Sustain 2 concurrent facility failures (a data store for disaster recovery, backups)

- 99.9% Availability - low latency and high throughput - Cost-optimized by automatically moving objects between two access tiers based on changing access patterns: Frequent access & Infrequent access • (Resilient against events that impact an entire Availability Zone)

- Same as IA but data is stored in a static AZ - 99.5% availability - low latency and high throughput lower cost compared to S3-IA (storing secondary backup copies of on-premise data)

- low-cost object storage meant for archiving/backup - details retained for the longer terms (years) -cheap (expedited is 1 to 5 min) (standard is 3 to 5 hours) (bulk is 5 to 12 hours)

- low-cost object storage meant for archiving/backup - details retained for the longer terms (years) -cheapest (standard is 12 hours) (bulk is 48 hours)

- you can transition objects between storage classes - can be automated using a lifecycle configuration

- Adopt a WORM (Write Once Read Many) model - Block an object version deletion for a specified amount of time

- Adopt a WORM (Write Once Read Many) model - Lock the policy for future edits (can no longer be changed) - helpful for compliance and data retention

- import data onto S3 through a physical device - edge computing

- snowcone - snowball edge - snowmobile

- snowcone - snowball edge

a software you install on your computer/laptop to manage your snow family device

Hybrid storage service that allows on-premises to seamlessly use the AWS Cloud (disaster recovery, backup & restore, tiered storage)

global unique name, tied to a region

IAM policy, S3 Bucket Policy (public access), S3 Encryption

host a static website on Amazon S3

multiple versions for files, prevent accidental deletes

log requests made within your S3 bucket

same-region or cross-region, must enable versioning

-standard -IA -1Z-IA -Intelligent -Glacier -Glacier Deep Archive

transition objects between classes

WORM (write once read many)

- relational database service - a managed DB service for DB use SQL as a query language - allows you to create databases in the cloud that are managed by AWS (Postgres, MySQL, MariaDB, etc.)

- PostgreSQL & MySQL are both supported - Aurora is "AWS cloud optimized" and claims 5x performance improvement - Not in the free tier

- scale the read workload of your DB - can create up to 5 Read replicas - data is only written to the main DB

- failover in case of AZ outage (high availability) - data is only read/written to the main database - can only have 1 other AZ as failover

- disaster recovery in case of region issue - local performance for global reads - replication costs

- in-memory databases with high performance, low latency - helps reduce load off databases for read. intensive workloads

-NoSQL database - not a relational database - "serverless" - single-digit millisecond latency - low latency retrieval (key value database)

- in-memory cache for Dynamo DB - 10x performance improvement - only used for and is integrated with DynamoDB

- it's not used for OLTP - it's OLAP (online analytical processing (analytics and data warehousing) - columnar storage of data (instead of row based)

- Elastic MapReduce - helps creating Hadoop cluster (big data) to analyze and process vast amount of data - clusters can be made of hundreds of EC2 instances (data processing, machine learning, web indexing, big data)

- query data on Amazon S3 (serverless & SQL)

Serverless machine learning-powered business intelligence service to create interactive dashboards (business analytics, building visualizations, perform ad-hoc, analysis)

NoSQL Document database that is MongoDB compatible - JSON

- graph database

- financial transactions ledger (immutable journal, cryptographically verifiable)

managed Hyperledger Fabric & Ethereum blockchains

- Quickly and securely migrate databases to AWS, resilient, self healing - The source database remains available during the migration - Homogeneous migrations: ex Oracle to Oracle - Heterogeneous migrations: ex Microsoft SQL Server to Aurora

- Managed ETL (extract transform load) and data catalog service - Fully serverless service

a new paradigm in which developers don't have to manage servers anymore (don't manage, provision, or see)

a container technology that allows you to run applications

allow you to run Docker containers on EC2 instances (must provision instances in advance)

allows you to run Docker containers without provisioning the infrastructure (serverless offering - no EC2 instances)

private docker images repository

allows you to run batch jobs on AWS across a set of managed EC2 instances (runs on top of the ECS service)

predictable & low pricing for simple application & DB stacks

serverless, function as a service, seamless scaling, reactive (use case: create thumbnails for images uploaded onto S3 or run a serverless cron job)

- run time x by the RAM provisioned - number of invocations

exposed Lambda functions as HTTP API