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AWS Exam Domains (Design Resilient Architectures (34%) (How to choose…

- - - - Faqs
        
        General
        
        What is Amazon S3?
        
        object store
        
        highly durable
        
        highly available
        
        scalable storage
        
        affordable price
        
        storing and retrieving
        
        What amount of data can be stored in Amazon S3?
        
        objects vary in size from a minimum of 0 bytes to a maximum of 5 terabytes
        
        largest object that can be uploaded in a single PUT can be up to 5 GB
        
        For objects larger than 100 MB, we recommend the Multipart Upload function
        
        What storage classes does Amazon S3 offer?
        
        S3 standard
        
        general storage of data with frequent access
        
        S3 Intelligent Tiering
        
        Data with Unknown or Changing Access Patterns
        
        S3 One Zone - Infrequent Access (S3 One-Zone-IA) && S3 Standard - Infrequent Access (S3 Standard-IA)
        
        long-term data with less frequent access
        
        Amazon S3 Glacier (S3 Glacier) && Amazon S3 Glacier Deep Archive
        
        long-term preservation and preservation of digital data
        
        How reliable is Amazon S3?
        
        S3 Standard
        
        99.99% uptime
        
        S3 - IA storage
        
        99.9% uptime
        
        S3 One Zone - IA
        
        99.5% uptime
        
        Regions
        
        Where is my data stored?
        
        When you create your Amazon S3 bucket
        
        you set an AWS region
        
        S3 Standard, S3 Standard - IA, and S3 Glacier storage
        
        items are automatically stored on multiple devices
        
        each with at least three Availability Zones in an AWS region
        
        S3 One Zone-IA storage
        
        stored redundantly within a single Availability Zone in the selected AWS region
- - - - Virtual computing environments
      - Preconfigured templates-Amazon Machine Images (AMIs)
      - instance types
        
        Various configurations of CPU
        
        memory
        
        storage
        
        networking capacity for your instances
        
        Storage volumes for temporary data that's deleted when you stop or terminate your instance, known as instance store volumes
      - Secure login information
        
        using key pairs
        
        AWS stores the public key
        
        store the private key
      - Persistent storage volumes for your data using Amazon Elastic Block Store (Amazon EBS), known as Amazon EBS volumes
      - Multiple physical locations for your resources, such as instances and Amazon EBS volumes, known as Regions and Availability Zones
      - A firewall that enables you to specify the protocols, ports, and source IP ranges that can reach your instances using security groups
      - Static IPv4 addresses for dynamic cloud computing, known as Elastic IP addresses
      - Metadata, known as tags, that you can create and assign to your Amazon EC2 resources
      - Virtual networks you can create that are logically isolated from the rest of the AWS cloud, and that you can optionally connect to your own network, known as virtual private clouds (VPCs)