13 Matching Annotations
  1. Feb 2026
    1. Different Types of Pricing Plans

      On-Demand: -book instances -up to 72% discounting -Billed per second -better for uninterruped workload

      Reserved Instance: - reserve an instance attribute (type, region. tenanct, os) up 72% discount - reserved for 1 or 3 years - no yp front payment partial up front payment, full upfront payment - converitble, ri - able to sell or exchange in marketplace

      Saving Plan: - up to 73% discount

      Spot Instance - up to 90% discount - able to bid on an instance and use it - aws able to take it back at any point - for interuppable task such as analyzing data, image processing,

      Dedicated Hosts, - able to use bring your own liencse for compliance - reserve physical server, able to chose where to host instance - control over os, - must reserve for 1 or 3 years - no upfront payment, partial payment or full payment - billed per instance use in secs

      Dedicated Instance - reserve instances, not able to chose where to host instance - no control over core, os, and so on

    2. EC2- scalable virtuals instances of machines that a can be used for variety of applications hoseted in the cloud. On-Demand - pay for instance by the hour or even seconds, Resevred Instance: - get discount rate if up to 1 year - 3years,<br /> Spot Instances - bid for unused EC2 at lower price, but connected can be lost at any point. .Configurations: Type, Size, Storage, ELB,Networking and auto scaling - Types General Purpose, Memory - OPtimized, Computer OPtimuized, Storage optimized,

    1. 6 pillars of Well Architect Framework

      1. Operation Excellence
        • perform operation as code (iaas)
        • learn from operational failiure
        • anticipate failure
      2. Reliability
        • automatically recover from failure
        • scale horzontally
        • stop guessing capacity
        • manage change with automation
      3. Security.
        • principle of least privilage, IAM
        • protect data in transit and at rest
        • security at all layers
      4. Performance Efficiency
        • go global in minutes
        • experiment frequently,
        • user serverless architecture
      5. Sustainability.
        • adopt efficient tech
        • used managed services
      6. Cost Optimization
        • pay for what you suse
        • use cloudwatch to mesure efficiecy
        • use tags to meaure roi
        • use managed service to reduce cost
    1. Saving Plans:

      Basic Support Plan:

      • use customer services, documentation, whitepaper.
      • utilized Trusted Advisor 7 core check.

      Developer Support Plan:

      • unlimited support case/
      • cloud support associate
      • acesss to 24/7 1 AWS contact

      Business Support Plan: 24/7

      • Trusted Advisor ALL Check
      • cloud support enginners
      • for production level workload
      • unlimited support case/
      • acesss to unlimited AWS contact
      • able to call with fix production failure: < 24hours

      Enterprise on-Ramp- 24/7 Support Plan:

      • for production level
      • unlimited support case/
      • acesss to 24/7 / unlimited AWS contact
      • able to call with fix production failure: < 24hours

      Enterprise 24/7 Support Plan:

      • for production level
      • unlimited support case/
      • acesss to 24/7 AWS contact
      • able to call with fix production failure: < 24hours

    2. Orgazination

      • global service to manage multiple - account
      • mange billing for group of users in a single payment method
      • help get volume discount
          • pooling for Reserved EC2 for saving
          • share RI and Saving Plans discount
          • management accoiunt can turn it off
      • api help automate the process
      • ability to set policies that restircts access to all the user in the account

      Strageties

      • create different accounts for departments to to better resources isolations
      • helps with regulations
      • use tags for resources

      SCP - service control policies

      • able to whitelist or blacklist IAM actions
      • help manage each account in Org
      • able to restrict services for accounts
      • must explicitly allow actions

      Pricing Model :

      • pay as you go, pay less as you use more, save when you reserve, pay less as AWS grows.
  2. Jan 2026
    1. CloudFormation:

      • Infastrucuture as Code,
        • control vm, os, and appplication
        • defines and manages AWS infastructure
        • provides templates
        • works with ECS, s3 , efs, rds,
        • manages entire stack of resoources
        • full control over

      Elastic BeanStalk

        • Platform as service
        • simplified application deployment and scaling
        • limited control over
        • use cases: complex archi

      CodeDeploy

        • deploy code

      CodeCommit

        • comparable to github
        • store code and provides verision controls
        • allows collaboration

      CodeBuild

        • able to build apps in the cloud
        • complies and run the application

      CodePipeLine

        • commit -> deplot -> build in one step

      artifact, start, cloud9 and sssm

    1. Database

        1. Relational Database
      • helpful for storing massive amounts of data -able to store diiffernt types of data
      • managed services, provided backup,high availibility, high storage,
      • across muiltiple az
      • able to recover fast --AWS reposibility - making sure its operational, security of storgae, infasturcture mangaement and safaty -Coustomer Resposibil;ity= mangament of data, encryption and access contraol and monitor performance Types" 1) RDS
      • non flexible scheme
      • SQL, POSTGRESS SQL,
      • relational dataset 2) NoSQL
      • flexible scheme
      • 3)Data Warehousing 4)In memory caching Aurora:
      • faster thatn RDS -SQL

      RedShift- Data Warehouse ElasticCache : inmemory cacheing service

    1. Scalibilty

      • Vertical ability to increase or decrease the capacity of system to adapt to demand.
      • Horizontal able to increase the number of instances to distriute the load acrross resources

      High Availability

      • ensure that the system is stay operation the longest times, and able to return failure in a quickest.

      EC2

      Load Balacing

      • distribute traffic across mutiple targets to ensure that no single resources is overwheled
    2. Elacstic Load Balancing and Auto Scaling Group

      Scalibility

      verticle vs Horizontal - able to increase or decrease performance load according to demand - increasing performance in a instance vs increasing number of instances

      high avalibles

      • ensure system is operational the longest times, reduce impact of failure
      • able handle load across AZ
    1. ECS Instance Storage: - way to mount volume storage to ec2 instance - provides persistance storagae even after termination - different types - temporary, and file system 30 GB for free tier (general pupose) Elastic Block Storage, - volume storage. dddd - discount for different types Elastic File System - network file sysem - can mount 100s of ec2 instance - has a high thought(read/ write) capabiliteis - - can be used for muiltiple OS - windows vs linux - others

    1. IAM Guidelines & Best Practices 1) MFA 2) IMA Roles instead of USER 3) Follow the principle of least provilage 4) rotate user credentials 5) use managed policies

      Shared Responsibility | AWS | Security of infastructure , Avalibity of IAM services, Offer Policies for common scenarios.

      | Customer | manage and secure accss keys and user accounts, implement strong passwods, utlized mFA, IAM permision must be implemented correctly and follow the principle of least privilage.

    2. Security Tools: Credential Report: Details about all IAM users in aws account such as passwords and access keys. Useful for auditing and review user credentails. Access Advisor: Policy Simulator:

    3. IAM - Identity and Acess managment What is it ? It is a service used controling AWS account and providing credientials and permissions to users that have access to its resources. Consist of User, Roles, Group. User- account with access to aws resources have username, password and access keys Role - positioon with certain permissions Groip= group of users

      Polices- set of permission that either allow or deny to access specific aws services (applies to user, role, group).

      Policy Inheritance: Polices can be set for user, groups and roles, they can overlap with each other. (Inline policy) - for each users (managed )- resualble policies created and maintained by aws or customer. (group inherited )- applies to all users in that group.

      policies structure JSON files, key elements included(Version stattement, action, reources , and effect.)