AWS Cloud Practitioner (CLF-C02) Study Guide: Pass on Your First Try

What Is the AWS Cloud Practitioner?

The AWS Cloud Practitioner (CLF-C02) is the entry-level certification from Amazon Web Services. It's designed for individuals who want to validate foundational cloud knowledge and AWS-specific understanding — regardless of their technical background.

Who should take it? Salespeople, project managers, business analysts, executives, and technical professionals early in their cloud journey. No prior AWS experience is required.

Exam details:

• 65 multiple-choice questions
• 90 minutes
• $100 USD
• Passing score: 700/1000
• Available in multiple languages

The 4 Exam Domains

1. Cloud Concepts (24%)

Focuses on the AWS Well-Architected Framework, cloud value proposition, and design principles. Know the six pillars: Operational Excellence, Security, Reliability, Performance Efficiency, Cost Optimization, and Sustainability (added in CLF-C02). Understand economies of scale, CAPEX vs OPEX, and the benefits of cloud computing.

2. Security and Compliance (30%)

The shared responsibility model is the single most important concept for this domain. AWS handles security of the cloud; you handle security in the cloud. Know the difference between AWS compliance programs (HIPAA, GDPR, SOC), IAM basics (users, groups, roles, policies), and the AWS Artifact service.

3. Cloud Technology and Services (34%)

The largest domain. You need broad awareness of AWS services across compute (EC2, Lambda, Elastic Beanstalk), storage (S3, EBS, EFS, Glacier), databases (RDS, DynamoDB, Redshift), networking (VPC, CloudFront, Route 53), and analytics (Athena, Kinesis, QuickSight). You don't need deep technical knowledge — just understand what each service does and when you'd use it.

4. Billing, Pricing, and Support (12%)

Know the pricing models (On-Demand, Reserved, Spot, Savings Plans), the AWS Free Tier, the Total Cost of Ownership (TCO) calculator, support plans (Basic, Developer, Business, Enterprise), and billing tools like Cost Explorer and Budgets.

Study Approach: 2-4 Weeks

Week	Focus
1	Cloud Concepts + AWS core services overview
2	Security, Compliance, and Pricing
3	Practice exams + review weak areas
4	Final review + exam day preparation

Best free resources: AWS Skill Builder (free digital training), AWS Documentation whitepapers (Well-Architected Framework, Overview of AWS), and AWS re:Invent session videos on YouTube.

Common Exam Traps

• Mixing up services — know what each service does, not just its name. S3 is for object storage, EBS is block storage attached to EC2, EFS is file storage.
• Overthinking the Well-Architected Framework — the six pillars have clear focus areas. Match scenarios to the right pillar.
• Shared responsibility edge cases — AWS is responsible for the physical infrastructure and the virtualization layer. You're responsible for everything else, including guest OS, data, and application configuration.
• Support plan details — know which plans include technical support, which include a TAM (Technical Account Manager), and which have response time SLAs.

Why Practice Exams Matter

Even though CLF-C02 is foundational, the exam questions are scenario-based and can be tricky. Taking practice exams helps you:

• Get comfortable with the question format
• Identify which domains you're weak in
• Build speed and confidence
• Learn the "AWS way" of thinking about solutions

You can take free AWS Cloud Practitioner practice questions at Certeli, with detailed explanations for every answer.

Ready to Start?

Head over to Certeli's AWS Cloud Practitioner practice page and begin testing your knowledge today. Free tier access — no credit card required.