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Introduction to AWS Services

AWS with Chetan・2 minutes read

AWS provides a comprehensive range of services, including various storage, database, network, and management solutions, with a focus on high availability and performance optimization across its global infrastructure. The platform offers tools for data storage, processing, analytics, user engagement, and application deployment, along with security measures like application firewalls and vulnerability scanning services to ensure compliance and protection against cyber threats.

Insights

  • AWS has 20 regions globally, each with multiple availability zones for high service availability, and over 130 services categorized into various domains like computing power, analytics, storage, and more.
  • A three-tier architecture for applications includes components like web servers, application servers, and databases, with the ability to scale vertically or horizontally, utilizing services like load balancers and DNS for efficient traffic distribution and user-friendly access.

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Recent questions

  • How many regions does AWS have?

    20

  • What are AWS Edge locations?

    Caching devices in 100+ cities

  • How many services does AWS offer?

    Over 130

  • What is a three-tier architecture?

    Private network, web server, app server, database

  • What is the purpose of a Content Delivery Network (CDN)?

    Reduce data usage, improve user experience

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Summary

00:00

AWS: Global Regions, Services, and Architecture

  • AWS has 20 regions globally, with each region having two or more data centers known as availability zones for high service availability.
  • Edge locations in AWS are caching devices spread across 100+ cities worldwide, improving performance by reducing network latency.
  • AWS offers over 130 services, including EC2 and S3, with different services operating at various levels such as account, region, or availability zone.
  • AWS services are categorized into computing power, analytics, storage, database, network, management, application, and development services.
  • A three-tier architecture for a social media application includes a private network, web server, application server, and database like MySQL or Oracle.
  • Scaling in a three-tier architecture can be vertical or horizontal, with load balancers distributing traffic to multiple web and application servers.
  • DNS services are used to map domain names to load balancer IP addresses for user-friendly access.
  • NoSQL databases like MongoDB or Cassandra are introduced for scalable data storage, along with database cache engines like Redis or Memcached for performance optimization.
  • External storage solutions are needed for media files and content filtering, while clickstream analysis engines and Hadoop platforms are utilized for data processing and analytics.
  • Data warehouses and business intelligence tools are essential for storing and analyzing data to derive insights for making informed business decisions.

16:57

"Streamlined internet services enhance user experience"

  • Photos and videos can be directly served over the internet, similar to Google Drive, allowing users to stream videos and view pictures from storage.
  • Videos need to be converted into mobile-friendly formats for users accessing content via mobile devices, requiring a video converter.
  • Content Delivery Network (CDN) caches videos and pictures to reduce data usage and improve user experience by serving content from nearby caching devices.
  • Notification services like SMS, mobile push notifications, and emails are essential for user engagement, along with chat services that utilize queues like RabbitMQ or JMS.
  • Monitoring services and dashboards are necessary for continuous monitoring of VMs, databases, and storage to ensure the health of the application.
  • In an AWS environment, a Virtual Private Cloud (VPC) replaces the private network, with EC2 machines for VMs and EBS for disk storage.
  • Auto scaling for EC2 instances allows for automatic horizontal scaling based on load, while RDS and DynamoDB are used for relational and NoSQL databases.
  • Elastic Load Balancer (ELB) distributes incoming traffic to multiple EC2 machines, with Route53 for domain name mapping.
  • S3 is used for external storage, with services like Rekognition for content filtering and Lambda for serverless video conversion.
  • Kinesis captures clickstream data for analysis, while EMR handles operations like aggregation and sorting, and Redshift serves as a data warehousing service for analysis using BI tools like Amazon Quicksight.

32:56

Essential AWS Services for Application Security and Deployment

  • Application Firewall (WAF) is crucial for protecting applications from various attacks like cross-site scripting, SQL injection, and DDoS attacks, and is typically deployed on CloudFront, load balancers, or in front of API gateways.
  • AWS Inspector is a service that scans machines for vulnerabilities, providing reports on identified issues, making it essential for maintaining compliance standards like PCI DSS or HIPAA.
  • CloudFormation allows for coding infrastructure as a code, creating resources from scratch within approximately 30 minutes based on JSON or YAML templates, streamlining manual deployment processes significantly.
  • CodeCommit, CodeBuild, and CodeDeploy are essential AWS services for developers and DevOps teams, facilitating code repository management, building source code, running unit tests, producing artifacts, and deploying applications on EC2 machines, forming a comprehensive CI/CD pipeline.
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