AWS: Amazon Athena

Amazon Athena Overview Amazon Athena is an interactive query service (serverless) that allows analyzing data in Amazon S3 using SQL Athena used Data Catalogue that stores the S3 DDL Athena is based on Presto – an open-source, distributed SQL query engine optimized for low latency and ad-hoc data analysis with Read more…

AWS: VPC Endpoints

Overview VPC Endpoint enables a private connection between VPC and AWS supported services (including S3, Athena, DynamoDB, ECS) and AWS Marketplace services (AWS PrivateLink-powered SaaS) Unlike VPC Endpoint – NAT Gateway uses the Internet Gateway and thus the public internet, impacting solution performance and cost VPC Endpoint VPC Endpoint enables Read more…

AWS: EC2 Roles and Instance Profiles

Overview An IAM Role is an IAM entity that defines a set of permissions for making AWS service requests. IAM roles are not associated with a specific user or group. Instead, trusted entities assume roles, such as IAM users, applications, or AWS services such as EC2. (what can I do?) An instance profile represents EC2 instances (who am I?). Instance profiles provide temporary credentials that are rotated Read more…

AWS Certified Solutions Architect – Associate (SAA-C02) – Databases

AWS Supported Database Types Hosted Services Relational (OLTP) Multiple database engine providers e.g. Amazon Aurora, SQL Server, Oracle Non-Relational (NoSQL) Amazon DynamoDB Data Warehouse (OLAP) Amazon Redshift Customer Installed “Bring Your Own License” (BYOL) Self-install/ configuration on EC2s Hosted Services AWS Relational Database Services (RDS) Amazon Aurora MySQL Amazon Aurora PostgreSQL Oracle Read more…

AWS Certified Solutions Architect – Associate (SAA-C02) – Application & Deployment Services

Overview Application and deployment services allow you to implement logic and code in the cloud Some services provide code execution, and others offer data analytics Selecting the appropriate service is essential and requires an understanding of its capabilities Lambda Service AWS compute service that runs code without servers Runs code Read more…

AWS Certified Solutions Architect – Associate (SAA-C02) – Auto Scaling and Virtual Network Services

Auto Scaling Overview Monitors the workload of instances and can add or remove capacity as needed Scaling Up = adding capacity Scaling Down = reducing capacity Allows better cost management Many AWS resources are scalable Scalable AWS Resources EC2 auto-scaling groups Aurora DB cluster DynamoDB global secondary indexes DynamoDB tables Read more…

AWS Certified Solutions Architect – Associate (SAA-C02) – Virtual Private Cloud

Virtual Private Cloud (VPC) A virtual network dedicated to your AWS account The term “virtual” = “not really” It is logically isolated from other virtual networks in the AWS Cloud A personal data center in the could VPN connections can be made to the VPC You can launch your AWS resources, such as Amazon EC2 instances, into your VPC You Read more…

AWS Certified Solutions Architect – Associate (SAA-C02) – Cloud Storage Options

Selecting the Storage Service Service Description Simple Storage Service (S3) First service offered by Amazon; Object-level storage; Distributed across three (3) Availability Zones (AZs) by default. Glacier Archiving data storage; meant for infrequent access; The cheapest storage option in AWS. CloudFront Getting data closer to the user; caching data at Read more…