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AWS (Amazon Web Services) is a cloud computing platform that provides services like computing, storage, databases, networking, and analytics over the internet on a pay-as-you-go pricing model.
Some major AWS services are:
Key Pairs are secure login credentials used to connect to EC2 instances.
They consist of:
S3 (Simple Storage Service) is an object storage service used to store and retrieve any amount of data from anywhere. It follows a pay-as-you-go model.
Two types:
EBS (Elastic Block Store) provides persistent storage for EC2 instances. Data remains available even after stopping an instance.
Auto Scaling automatically increases or decreases the number of EC2 instances based on resource usage.
Components:
Reserved Instances are EC2 instances reserved for 1 or 3 years at a lower cost.
AMI (Amazon Machine Image) is a template used to launch EC2 instances.
It contains:
EIP (Elastic IP Address) is a static public IP address used for EC2 instances. It remains the same even after restarting an instance.
CloudWatch is an AWS monitoring service used to monitor AWS resources, applications, and performance metrics.
Common metrics:
Minimum : 0 Bytes
Maximum: 5 TB
The default storage class is:
Standard (Frequently Accessed)
Glacier is a low-cost storage service used for long-term backup and archival of data.
You can secure an S3 bucket using:
S3 supports:
S3 pricing depends on:
Requirements:
IAM Roles provide temporary permissions to AWS services or users without using permanent credentials. They are commonly used by EC2, Lambda, and other AWS services.
IAM Roles provide temporary permissions to AWS services or users without using permanent credentials. They are commonly used by EC2, Lambda, and other AWS services.
IAM Policies define permissions for AWS resources.
Types:
CloudFront is AWS's Content Delivery Network (CDN). It delivers content to users with low latency and high speed by caching data at edge locations.
Edge Locations are AWS data centers that cache content closer to users, reducing latency and improving performance.
The maximum size of a single archive in Glacier is 40 TB.
VPC (Virtual Private Cloud) is a logically isolated virtual network in AWS where you can launch AWS resources securely.
It allows you to configure:
