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Amazon Web Services · CLF-C02 · Foundational · Beginner

AWS Certified Cloud Practitioner (CLF-C02) study guide

4 min read · Updated July 19, 2026 · AI-assisted, editorially reviewed

How to use this guide

Give each domain study time in proportion to its official weighting. The percentages below are where your marks actually come from. Work through the domains in order, then let your per-domain practice scores show you what to go back to.

The fastest way to improve: read one domain’s focus areas, take a practice run, then read the explanation for every question you missed before moving on. The explanations are where the learning happens. Skipping them is the most common reason people stop improving.

1. Cloud Concepts

24% of the exam

What to focus on:

  • The AWS Well-Architected Framework's six pillars and what each optimises for
  • Benefits of cloud: elasticity, agility, economies of scale, trading capex for opex
  • Cloud deployment models: all-in cloud, hybrid, on-premises
  • Migration basics: the 7 Rs, AWS Snow Family for bulk transfer

2. Security and Compliance

30% of the exam

What to focus on:

  • The shared responsibility model: where AWS's duty ends and yours begins, and how that line moves between EC2, RDS and Lambda
  • IAM: users, groups, roles, policies, least privilege, root-account protection and MFA
  • Compliance tooling: AWS Artifact for reports, Config for resource compliance, CloudTrail for audit trails
  • Security services by purpose: GuardDuty, Inspector, Shield, WAF, Macie, KMS

3. Cloud Technology and Services

34% of the exam

What to focus on:

  • Core compute, storage, database and networking services, and when each is the right fit
  • Global infrastructure: Regions, Availability Zones, edge locations and how they drive resilience
  • Connectivity options: VPC basics, Direct Connect, VPN, Route 53, CloudFront
  • Ways to interact with AWS: Management Console, CLI, SDKs, Infrastructure as Code with CloudFormation

4. Billing, Pricing, and Support

12% of the exam

What to focus on:

  • EC2 purchasing options (On-Demand, Reserved, Spot, Savings Plans) and the trade-off each makes
  • Cost tooling: Cost Explorer, Budgets, Cost and Usage Report, the pricing calculator
  • Consolidated billing and AWS Organizations
  • Support plan tiers and what each unlocks, including when a Technical Account Manager is included

Common mistakes

  • Memorising service names without the shared responsibility model. It is the most heavily tested idea on the exam, and it is tested as judgment rather than recall.
  • Confusing the cost tools. Cost Explorer analyses spend that already happened, Budgets alerts as spend approaches a limit, and the Pricing Calculator estimates before you build.
  • Mixing up Regions, Availability Zones and edge locations, then losing every resilience and latency question as a result.
  • Treating Reserved Instances and Savings Plans as interchangeable. The exam tests which commitment fits which workload shape.
  • Over-studying deep technical detail. This exam rewards breadth, and time spent on VPC subnetting internals is time not spent on billing and support, which is 12% of the score.

Exam-day tips

  • Answer everything. Scoring is compensatory, with no per-domain minimum, so one weak area cannot sink you.
  • There is no penalty for a wrong answer. Never leave a question blank.
  • When two options both look right, pick the one that is more managed or more least-privilege. That is usually the AWS-preferred answer.
  • Watch the qualifier in the stem. MOST cost-effective and MOST operationally efficient often point at different services.
  • Flag and move on. At 65 questions in 90 minutes you have well over a minute each, but only if you do not stall early.

How to know you’re ready

One good practice score can be luck. What counts is scoring at or above the real pass mark (700 on a 100 to 1000 scaled score) across several full-length sets in a row, with no single domain trailing far behind the others. Kwizza tracks your per-domain readiness automatically as you practice.

Free, full-length, and weighted to the official blueprint. Every answer is explained.

Start the Cloud Practitioner practice exam →

Written against Amazon Web Services’s officially published exam objectives; last reviewed July 19, 2026. AI-assisted and editorially reviewed. See how our exams are made.

Kwizza is an independent study tool and is not affiliated with, endorsed by, or sponsored by Amazon Web Services. Amazon Web Services names, logos and certification marks are the property of their respective owners and are used here only to identify the exam described. Practice questions are original, written against the publicly published exam objectives. No real exam content is reproduced.