CLF-C02 Cheat Sheet 2026

The 30 highest-yield CLF-C02 facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is a key benefit of using a microservices architecture compared to a monolithic architecture in the cloud? → Independent scaling and deployment of individual services
2. What is the default maximum number of IAM users allowed per AWS account? → 5,000
3. What is the value of continuing education in billing and pricing for CLF-C02 professionals? → It keeps professionals current with evolving standards and practices
4. Which AWS service provides recommendations to help reduce costs by identifying idle or underutilized resources? → AWS Trusted Advisor
5. Which AWS deployment strategy allows you to shift traffic gradually from an old version to a new version of an application? → Blue/green deployment
6. What is the most important professional competency for CLF-C02 certification in storage services? → Deep knowledge combined with practical application skills
7. What is the MOST important reason for AWS Certified Cloud Practitioner professionals to maintain continuing education? → To stay current with evolving standards, practices, and regulations
8. Which feature of Amazon Aurora makes it different from standard MySQL or PostgreSQL? → It automatically replicates data across 3 Availability Zones with 6 copies
9. Which principle is fundamental to good database services practice? → Separation of concerns and modularity
10. What does 'security IN the cloud' refer to in the AWS Shared Responsibility Model? → Customer responsibilities such as data protection, IAM, and OS patching
11. In the context of EC2 Auto Scaling, what is a 'launch template' used for? → Specifying the AMI, instance type, key pair, and other configuration for new instances
12. What is the primary purpose of AWS Identity and Access Management (IAM)? → To control who can access AWS services and what actions they can perform
13. Which professional attribute is most valued in shared responsibility within the CLF-C02 field? → Accountability and commitment to standards
14. Which AWS service provides a detailed breakdown of your AWS costs by service, account, tag, or time period? → AWS Cost Explorer
15. A media company needs shared file storage accessible by Windows-based EC2 instances using the SMB protocol. Which service should they use? → Amazon FSx for Windows File Server
16. What does the 'loose coupling' design principle mean in AWS architecture? → Reducing interdependencies between components so failures are isolated
17. What documentation is MOST critical to maintain for safety compliance in the AWS Certified Cloud Practitioner field? → Incident reports, training records, and inspection logs
18. What type of AWS Savings Plan specifically targets EC2 usage within a single instance family in a specific region? → EC2 Instance Savings Plans
19. Which AWS pricing principle describes the reduction in per-unit cost as usage increases? → Volume-based discounts (tiered pricing)
20. What is the primary purpose of Amazon CloudFront in an AWS architecture? → Distributing content with low latency via edge locations
21. Which AWS Well-Architected Framework pillar focuses on protecting information and systems? → Security
22. Under the AWS Shared Responsibility Model, which of the following is AWS responsible for? → Maintaining physical security of data center facilities
23. Which AWS service enables you to define infrastructure resources using code and provision them in an automated, repeatable manner? → AWS CloudFormation
24. Which principle helps optimize performance in cloud deployments? → Select services based on workload needs
25. What is the primary benefit of version control in database services for CLF-C02? → It tracks changes and enables collaboration
26. A company wants to enforce WORM (Write Once Read Many) compliance on S3 objects to meet regulatory requirements. Which feature enables this? → S3 Object Lock
27. Under the Shared Responsibility Model, which of the following is always the customer's responsibility regardless of which AWS service is used? → Controlling who has access to their AWS account and resources
28. Which personal protective equipment (PPE) principle applies to ALL CLF-C02 certified professionals regardless of their specific role? → PPE must be properly fitted, maintained, and replaced as needed
29. How does the CLF-C02 body of knowledge relate to daily professional practice? → It provides the foundational framework that guides decision-making and standard practices
30. Which AWS architecture pattern distributes incoming traffic across multiple targets to improve availability? → Load balancing