AWS Certified Solutions Architect Associate 2021- Complete

Amazon S3 is a foundational, highly integrated object storage service used by nearly all applications for backup and disaster recovery. It provides flexible storage classes and encryption and access control.

Explore buckets as containers for objects in cloud object storage, noting that bucket names are globally unique across all accounts and can hold multiple objects.

We explain how AWS regions affect where buckets and objects are stored, enabling low latency near end users and disaster recovery through copying data across regions.

Explore AWS storage classes, including standard and infrequent access, to balance high availability and performance with lower costs for long-lived data and long-term backups that require no real-time access.

Discover how object lifecycle management in AWS S3 automatically moves data between storage classes and eventually deletes it, using 30-day transitions and 90-day transitions and prefixes to save costs.

Explore Glacier storage as a low-cost, long-term data archiving and online backup solution for infrequent access data, with retrieval times of two to five hours.

Enable static hosting on a bucket by configuring properties, setting the index document, creating and uploading the required text files, and making the bucket public.

Explore ec2 instances on aws, learning how running versus stopped states affect billing and how virtual hardware and software loaded on the instance shape performance.

Discover the diverse AWS instance types and families, including memory, storage, network resources, and CPU performance, and learn how balanced resources guide medium workload applications.

Explore the lifecycle of instances and how tagging with key-value metadata helps track each instance, then use AWS monitoring to monitor and meter usage.

Learn how elastic block store provides persistent block-level storage for EC2 instances, with automatic replication within an availability zone and support for multiple volumes per instance.

Learn to launch and connect to a Linux Amazon EC2 instance, selecting an Amazon Machine Image, configuring storage and security groups, and reviewing networking options across availability zones.

Launch an Amazon Linux instance by selecting the AMI, configuring instance details, attaching storage and security groups, adding tags, and reviewing settings before launch.

Create and configure an ec2 instance, generate a key pair, and save the private key. Connect using the instance's public ip or dns and the private key via ssh.

Explore AWS VPC basics, define virtual private cloud, create and manage subnets and IP address ranges, understand logical isolation across regions, and compare VPC with classic networking.

Learn how private connections enable a virtual private cloud, allow non-internet access, and create multiple endpoints for a service by selecting the virtual private cloud, the service, and a policy.

Explore VPC peering, a networking connection that lets two VPCs communicate as a single network through a request-and-accept protocol. It covers non-overlapping CIDR blocks, cross-account setups, and cross-region considerations.

Explore network access control lists (NACLs) as a subnet-level security layer in AWS, enforcing ordered inbound and outbound rules and a default deny, contrasted with instance-level security groups.

Create a subnet under your VPC, assign an IPv4 CIDR block such as 192.168.1.0, and designate it as a public subnet. Learn to add and delete subnets via subnet actions.

Explore ELB (elastic load balancing) as a managed, highly available service that automatically scales to traffic, supports SSL and certificate management for internet-facing and internal applications.

Explore Amazon cloudwatch to monitor resources and applications, set alarms, and automate notifications and actions based on metrics and utilization.

Explore how authorization defines what actions a principal can or cannot perform, using policies that specify effects, resources, and services to secure IAM infrastructure.