AWS Cloud Practitioner
Help!
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| What is a ALB | Application Load Balancer
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| What does ALB protect | HTTPS/HTTP layer 7
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| What is NLB | Network Load Balancer
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| What does NLB protect | UDP/TCS
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| What does CROPSS (The Pillars) stand for | Cost optimization, Reliability , Operational Excellence, Performance Efficiency, Security, Sustainability
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| What is auto scaling | Horizontally scaling by increasing instances, reboots unhealthy instances
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| Security Groups | Protects the instance, stateful, blocks in bound by default, traffic allowed in is allowed out, explicitly deny, rules can be modified anytime
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| NACL stands for | Network access control list
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| NACLs | Protects subnet, stateless, allows inbound and outbound default, rules can be modified after dissociation
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| What is Direct Connect | Connects network directly to the AWS Cloud (Storage/Transit Gateways)
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| SaaS | Software as a service, requires no instillation, simple easy
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| IaaS | Infrastructure as a Service, Configure everything except hardware , volume and storage
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| PaaS | Platform as a service, focuses on application level coding, DevOps related
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| Scalability | Increase/ decrease by usage with users
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| Elastic | Increase /decrease by compute resources on demand
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| ECR (Elastic container Registery) | Stores Docker Images to be deployed by ECS
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| Amazon Machine Image (AMI) | Is a template for EC2 instance
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| Elastic Beanstalk | Deploys apps without managing, it handles hardware, Like PAAS
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| Elastic Block Store (EBS) | Allows to add blocks to EC2 to share more permanent storage , for frequent updates , has SSD and HD drives
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| Elastic File Store (EFS) | Like File system , allow access parallel across AZ like Google docs mount on ec2
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| Simple Storage Service (S3) | Unlimited size, object bucket storage, fast read and writes , 100 max
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| S3 sizes | 0-5TB
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| 6 Types of S3 (ITs GF S O SIt GIRl) | Intelligence tiering, Glacier Flexible, standard, standard infrequent, glacier instant removal, outpost
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| Dynamo DB | NoSQL non relational Database, is Key-Value
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| Aurora | SQL relational Database, unlimited compute and storage
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| Amazon RDS | SQL Relational Database, on dedicated hardware in AWS, no pen test and automated backups
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| MemoryDB for Redis | In memory Database for fast read and writes
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| Amazon Redshift | Petabyte warehouse Relational DB
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| Storage Gateway | Hybrid storage , acts as a staging area for data to upload to AWS, reduce cost of transfer
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| Quantum Ledger Database QLDB | Fully Managed, No SQL database
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| Neptune DB | Fully managed, Graph , no SQL
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| AWS Keyspace | Fully managed, serverless for apace Kassandra
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| CIDR sizes | /16(largest) to /28 (smallest)
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| Notions for AZs | Sa-East-1a
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| A region contains | 1 or more Azs
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| DaaS | Desktop as a. Service (WorkSpaces)
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| How are AZs connected | Low latency networks
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| Root user | Is to create admin accounts only when necessary
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| Simple Queue service SQS | Stores messages until it’s read, processes until timeout,
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| Simple Notification Service SNS | Subscribers are lambda and email , publishers are Cloud Front
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| Web Applications Firewall WAF | Prevents common web attacks layer 7
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| AWS Sheild | Stops DDOS, in layer 3 4, and use with WAF
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| Amazon Inspector | Analyze EC2 instances
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| Amazon guard Duty | Uses AI to look at CloudTrail
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| Amazon Maice | Scans s3 for sensitive info
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| What is EC2 | Virtual Server instance that has ephemeral storage
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| Amazon Cloud Front | Content Delivery network that sends data to edge location for faster loading think Netflix can change content language based on location
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| AWS Global Accelerator | Directs web traffic to make loading faster,
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| Route 53 | Domain Name service can route to S3 or EC2 or other domains
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| Cloud formation | Templates can be made for pay SDKs version control
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| Cloud Trail | Monitor/Audit ,track API usage, track users threats and vulnerabilities stored in S3
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| Cloud Watch | Watches utilization, health , performance, notify when events occur
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| Virtualization allows you to | Reduce expenses and pool Resources
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| Cloud Adoption Framework (CAF) | Build from beginning, migrate to AWS or adopt
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| Principle of least privilege | Only have access to what you need
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| Aws artifact | Comply with security standard and compliance reports , you are still responsible for infrastructure, track status of agreements
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| Infrastructure as code Iaac | Allows users to specify config and deploy when needed Bean stalk, lambda, cloud formation
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| Amazon lightSail | Helps get started with simple projects, you specify infrastructure
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| Snow family | Snow cone(14TB) snowball (80-14TB) snowmobile(100Petabytes)
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| SageMaker | Helps build maintain deploy ML models
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| Amazon Lex | Voice assistant and chat box AI
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| Amazon Kendra | Intelligent search ML NLP
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| Data Lake | Store structured and unstructured data with analytics s3
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| Amazon Athena | Analyze s3 data lake
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| AWS glue | Uses diverse data sets and cleans them
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| Amazon Kinesis | Collects and processes realtime LARGE data in shards into Dynamo DB
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| Transit Gateway | Connects VPC 1:1
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| FSx is for | Niche Windows applications , luster for Linux, Ontap, open zfs
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| Classic load balancer | Is like ALB and NLB it’s is not supported
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| AWS certificate manager | Manages ssl and tls certificates
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| AWS Service Catalog | Catalog of AWS resources
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| AWS Step functions | No code state machine that manage workflows
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| Economy of scale means to | Save when you buy more
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| AWS Directory service allows | Connect aws resources to Microsoft Active Directory
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| VPC Peering | connects virtual private clouds
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| VPC flow logs collect | Information about IP traffic coming and going
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| Bastion Hosts | Connect private subnets to the Internet
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| Types of ELBs | ALB AND NLB
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| What ELB is better for high traffic | NLB
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| AWS Management Console contains | Regions and Services
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| Cloud watch uses what to initiate | Alarms
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| Fargate is to | Run containers without managing servers or clusters
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| Elastic Container Service(ECS) | Allows you to run docker enable applications , uses files stored on ecr
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| AWS Billing and Cost Management contains | Billing and payments, cost analysis, cost organization, budget and planning, savings and commitments
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| In Cost Analysis there is AWS Cost Explorer what does it do | Analyze cost using visuals filtering and grouping. And forecast costs 12 months ahead and behind CURRENT SERVICE
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| What is a cost allocation tag | A tag that can organize and view items in Cost Explorer
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| What are Budgets | Govern cost and usage across organization and receive alert when exceeding defined thresholds
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| What is AWS Organization | Consolidated Billing which is good for easy tracking, combined usage and no extra fee
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| AWS Pricing Calculator | Tool to create cost estimates for for complex services like EC2. They can be organized into Groups BEFORE BUILDING
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| What are Quotas | Limits placed on a service
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| What can Developer plan do | Trusted Advisors, Business hours support,$29
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| What can Business plan do | Trusted Advisors , 24/7 support, if you have prod, $100
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| What can Enterprise OnRamp do | Trusted Advisors , Technical Account Manager, 24/7 support, if you.have prod and business critical , $5,500
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| What can Enterprise do | Trusted Advisors , Technical Account Manager , 24/7 support, mission critical workload, $15,000
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| EFS vs EBS | Efs is more available and managed, ebs is faster and cheaper exists in one region
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| What does CIDR stand for | Classless inter domain routing
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| What is CIDR used for | Assigning IP Adresses in vpc
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| What is accounted for in S3 costs | Lifecycle transitions and data transfer from regions
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| What is the pricing model for EC2 Linux | Per second
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| What activities are covered by AWS Support | Third-party config and api troubleshooting
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| What can be configured through VPC console | Security groups and NACL
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| Amazon url | .aws.amazon.com
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| What’s involved in SAML workflow | Service providers and identity providers
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| What is AppStream | Flexible low latency service that lets you stream resource intensive apps and games from cloud
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| AWS Systems Manager- Application Management -Application Manager | helps DevOps engineers investigate and remediate issues
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| AWS Systems Manager- Application Management -AppConfig | helps you create, manage, and deploy application configurations and feature flags. Lambda, mobile applications, or edge devices.
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| AWS Systems Manager- Application Management -Parameter Store | provides secure, hierarchical storage for configuration data and secrets management
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| AWS Systems Manager- Change Management - Change Manager | framework for requesting, approving, implementing, and reporting on operational changes
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| AWS Systems Manager- Change Management - Automation | automate common maintenance and deployment tasks such as AMI and reset Passwords
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| AWS Systems Manager- Change Management - Change Calendar | set up date and time ranges when actions you specify can or can't be performed, like automation
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| AWS Systems Manager- Change Management - Maintenance window | set up recurring schedules for managed instances to run administrative tasks
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| AWS Systems Manager- Node Management - Compliance | scan your fleet of managed nodes for patch compliance and configuration inconsistencies. aggregate data from multiple AWS accounts and AWS Regions
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| AWS Systems Manager- Node Management | A managed node is any machine configured for use with Systems Manager in hybrid and multicloud environments.
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| AWS Systems Manager- Node Management - Fleet Manager | you can view the health and performance status of your entire fleet from one console
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| AWS Systems Manager- Node Management - Inventory | automates the process of collecting software inventory from your managed node
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| AWS Systems Manager- Node Management - Session Manager | manage your all edge devices and EC2 instances
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| AWS Systems Manager- Node Management - Run Command | remotely and securely manage the configuration of your managed nodes at scale
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| AWS Systems Manager- Node Management - State Manager | automate the process of keeping your managed nodes in a defined state
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| AWS Systems Manager- Node Management - Patch Manager | automate the process of patching your managed nodes
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| AWS Systems Manager- Node Management - Distributor | create and deploy packages to managed nodes
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| AWS Systems Manager- Node Management - Hybrid Activation | To set up non-EC2 machines in your hybrid and multicloud environment as managed nodes
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| AWS Systems Manager- Operation Management - Incident Manager | helps users mitigate and recover from incidents, notifying responders of impact, highlighting relevant troubleshooting data
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| AWS Systems Manager- Operation Management - Explorer | customizable operations dashboard that reports information about your AWS resources
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| AWS Systems Manager- Operation Management - OpsCenter | view, investigate, and resolve OpsItems related to AWS resources. designed to reduce time to resolution
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| AWS Systems Manager- Operation Management - CloudWatch Dashboards | monitor your resources in a single view
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| AWS Systems Manager- Quick SetUp | configure frequently used AWS services and features with recommended best practices
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| QuickSight | business intelligence (BI) service that you can use to deliver easy-to-understand insights
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| What can be optimized based on instances | CPU, memory, storage, and networking
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| What are Spot Instances | when AWS has extra space, 90% off from On-Demand, but may be interrupted
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| What are On-Demand Instances | Instances that are available On demand if user most expensive (by sec or hour)
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| What are Reserved Instances | fixed price for a set period of time (1 or 3 years) , 72% off from On-Demand
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| What are savings Plans | 72% off fromOn-Demand, flexibility in usage changes
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| What are the types of Reserved Instances | Convertible and Standard
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| What services uses savings Plans | EC2, Lambda, Fargate, Sage Maker
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| What Services use On-Demand Instances | EC2, Athena, RDS, Fargate, EKS/EKS/ECR
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| What Services use Reserved Instances | all the DBs
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| What Services use Spot Instances | EC2
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| What’ are global services | Cloud Front, Global Accelerator, Route 53
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| Aws code star | Build deploy develop and jira manage code
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| Reserved instance utilization report | For billing and utilization report
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| Operational expenditure | How much it cost to operate
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| Capital expenditure | How much it cost to maintain the land
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| Amazon Cognito | Federated authentication
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| Amazon CDK | Cloud development Kit is for IAC rescources
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| Amazon SDK | Software development kit libraries to integrate with aws apis
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| Amazon RDS traits | Automated backup, patching, failure detection, recovery
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| Cost and usage repot | CSV of users usage consumption and expenses
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| Disaster recovery | Backup and restore(hours)pilot light (data live /mins), warm standby (mins running small), multi site (most expensive)
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| After verifying and authenticating identity | Authorization determines what can be accessed
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| AWS XRAY | Debug analyze microservice
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| AWS Control Tower | Set up a well architected framework
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| What’s is a in line policy | A 1:1 policy to group role
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| AWS codeCommit | Source control/version control
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| What are origins in CloudFont | Contains Content to deliver
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| Amazon Detective | Analyze and Identify potential threats
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| How many versions of S3 will Amazon keep | Unlimited
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| Cheapest s3 class | One zone infrequent access
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| Glacier retrieval times | Bulk 5-12 hours, standard 3-5hours, expedited 1-5mins
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| Open what secure port for firewall | 443
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