Examworthyexamworthy.comAWS Certified Cloud Practitioner cheat sheet
Amazon Web Services
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At a glance
Format: Multiple choice and multiple response
Domain weight map
Heaviest first - spend your time hereHow this exam thinks
CLF-C02 is a recognition exam: nearly every question states a business need and the right answer is the AWS service, pricing model, support plan, or shared-responsibility boundary that matches it, so broad clean recognition beats deep knowledge of any one service.
Spot the trap
Tempting wrong answers, and why they failCommon misconception
That picking an Availability Zone is how you set the country your data sits in. The Region fixes the geography; zones only divide resources inside it.
Cloud Technology and Services
Common misconception
That the data you put in Amazon S3 and its access settings are covered by security OF the cloud. Buckets and their permissions stay yours to set.
Security and Compliance
Common misconception
That AWS handles all security once you migrate, so no controls are needed. Customers still secure their own data, access and configuration.
Cloud Concepts
Common misconception
That On-Demand is cheapest because you only pay for what you use. Paying the full standard rate for years costs far more than a one-year or three-year commitment.
Billing, Pricing, and Support
Common misconception
That a bigger, stronger instance is a more available one. Size adds capacity, not redundancy, and one instance still sits in a single zone.
Cloud Technology and Services
Common misconception
That the host operating system still needs patching by you on every AWS service. It is your job on Amazon EC2 only; AWS patches it for Amazon RDS and AWS Lambda.
Security and Compliance
Common misconception
That cloud spending cannot be forecast, so moving off owned hardware means losing cost control. Usage-based spend can still be estimated and tracked.
Cloud Concepts
Common misconception
That a Standard Reserved Instance discount follows you across instance families. The commitment is tied to the instance type, so a family change leaves it partly unused.
Billing, Pricing, and Support
Key terms
Exam-day rules
- Read the scenario for the need it names first. One word or phrase usually states the requirement, a geography, a steady multi-year workload, a need for a second sign-in factor, and that is what picks the answer.
- On responsibility questions, draw the line: AWS secures the cloud (hardware, facilities, hypervisor) and the customer secures what they put in it. On EC2 that includes the guest operating system and its patches.
- Treat plausible-but-wrong options as the norm. Most distractors are real AWS services that simply answer a different need, so do not pick a familiar name, pick the one whose single job matches the requirement.
- Match the pricing model to the workload, not to the discount. Steady multi-year means Reserved Instances or Savings Plans, short and unpredictable means On-Demand, and interruptible fault-tolerant means Spot.
- Sort the billing tools by tense. The Pricing Calculator estimates before you build, Budgets alerts while you run, and Cost Explorer reviews after the bill arrives.
Revision schedule
- Day 1Map the blueprint and book a date
- Week 1Learn the cloud value vocabulary
- Weeks 1 to 3Build the service-recognition map
- Weeks 2 to 3Lock the shared responsibility model and security services
- Week 4Cover billing, pricing, and support