Introduction to Key AWS Services

AWS Core Services

1. Amazon Elastic Compute Cloud (EC2):
   Amazon EC2 provides scalable virtual servers (known as instances) in the cloud. These instances allow you to run applications in a secure and resizable computing environment, similar to a physical server but without the overhead of managing hardware. EC2 offers the flexibility to scale up or down based on demand, making it ideal for a wide range of workloads.

   Key Features:

   • Instance Types: A wide selection of instance types tailored for various workloads, including general-purpose, compute-optimized, memory-optimized, and GPU-enabled options.
   • Auto Scaling: Automatically adjusts the number of instances based on your application's needs, ensuring optimal performance while controlling costs.
   • Security: EC2 instances can be secured using security groups and network access control lists (ACLs), controlling inbound and outbound traffic.
2. Amazon Simple Storage Service (S3):
   Amazon S3 is a highly durable and scalable object storage solution designed for data storage and retrieval across the Internet. It is ideal for storing large files like media, backups, and application data. Amazon S3 is known for its 11 nines of durability, meaning for every ten million objects stored, you can expect to incur an average loss of a single object once every 10,000 years. This ensures that your data is highly secure and redundant across multiple locations.

   Key Features:

   • Data Durability and Availability: Data is automatically replicated across multiple locations, ensuring high availability.
   • Versioning and Lifecycle Policies: S3 supports version control and policies to manage storage costs by transitioning old or infrequently used data to cheaper storage classes.
   • Security: Supports encryption and access control through policies, ensuring that your data is secure.
3. Amazon DynamoDB:
   Amazon DynamoDB is a fully managed NoSQL database known for its performance, scalability, and low latency. It efficiently handles the storage and retrieval of large volumes of structured data, making it ideal for modern applications requiring real-time data access.

   Key Features:

   • Performance: Delivers consistent, low-latency responses even under heavy workloads, making it suitable for dynamic web and mobile applications.
   • Seamless Scaling: Dynamically adjusts capacity to meet varying traffic demands without manual intervention.
   • High Availability: Automatically replicates data across multiple AWS regions, ensuring data resilience and continuous availability.
4. AWS Elastic Beanstalk:
   AWS Elastic Beanstalk simplifies the deployment and management of applications in the AWS cloud. It automatically handles the infrastructure, including scaling, load balancing, and monitoring, so you can focus on writing code without worrying about servers or other underlying infrastructure.

   Key Features:

   • Automatic Provisioning: Elastic Beanstalk automatically sets up and configures the required resources (e.g., EC2 instances, load balancers) to run your application.
   • Scaling: Automatically adjusts the number of resources allocated to your application to meet traffic demands.
   • Monitoring: Elastic Beanstalk integrates with AWS CloudWatch to provide real-time monitoring and performance metrics for your application.