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  /Title (aws-cloud-practitioner-clf-c02-core-services.pdf)
  /Creator (Cheatography)
  /Author (bytebar)
  /Subject (AWS Cloud Practitioner (CLF-C02) Core Services Cheat Sheet)
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    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{AWS Cloud Practitioner (CLF-C02) Core Services Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{bytebar} via \textcolor{DarkBackground}{\uline{cheatography.com/218949/cs/48452/}}}
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  \vspace{-2pt}bytebar \\
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 24th September, 2026.\\
   Updated 25th September, 2026.\\
   Page {\thepage} of \pageref{LastPage}.
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  Measure your website readability!\\
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EC2 & Virtual servers; you manage the OS — resizable, pay-as-you-go \tn 
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% Row 1
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Lambda & Serverless functions — run code with zero servers, pay per execution \tn 
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Elastic Beanstalk & PaaS — deploy apps without managing infrastructure \tn 
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Auto Scaling & Adds/removes EC2 instances based on demand \tn 
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% Row 4
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ELB (ALB/NLB) & Distributes traffic across instances; ALB = HTTP, NLB = TCP/UDP \tn 
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S3 & Object storage — 11 nines durability; classes: Standard, Intelligent-Tiering, Glacier \tn 
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S3 Glacier & Archive storage — cheapest, retrieval in minutes to hours \tn 
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EBS & Block storage for EC2 (like a virtual hard drive) \tn 
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EFS & Shared file storage for multiple EC2 instances \tn 
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Storage Gateway & Hybrid — connects on-premises storage to AWS \tn 
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RDS & Managed relational DB (MySQL, Postgres, Oracle, SQL Server) \tn 
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Aurora & AWS-built relational DB — MySQL/Postgres compatible, high performance \tn 
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VPC & Your isolated virtual network in AWS \tn 
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Subnets & Public (internet-facing) vs private (no direct internet) \tn 
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Security Groups & Stateful instance-level firewall (allow rules only) \tn 
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NACLs & Stateless subnet-level firewall (allow + deny rules) \tn 
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Direct Connect & Dedicated private link from on-premises to AWS \tn 
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IAM & Users, groups, roles, policies — least privilege, MFA on root \tn 
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KMS & Key Management Service — encryption keys \tn 
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CloudTrail & Logs API calls (who did what) \tn 
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CloudWatch & Metrics, alarms, and logs monitoring \tn 
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GuardDuty / Inspector & Threat detection / vulnerability assessments \tn 
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WAF / Shield & Web app firewall / DDoS protection \tn 
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Spot Instances & Bid on spare capacity — up to 90\% off, can be reclaimed \tn 
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CAF & Cloud Adoption Framework — 6 perspectives for migration planning \tn 
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Support plans & Basic (free) → Developer → Business → Enterprise On-Ramp → Enterprise \tn 
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