AWS CLF-C02 Practice Test

CLF-C02 practice test: what's covered

• Cloud Practitioner Foundational

Free CLF-C02 sample questions

1. A startup wants to launch a product globally without buying servers upfront, paying only for what it consumes. Which cloud value proposition does this describe?

   • A. Trading capital expense for variable, pay-as-you-go operating expense
   • B. Guaranteeing the lowest possible price for every workload type
   • C. Eliminating the need for any application monitoring or operations
   • D. Removing all responsibility for securing customer data in the cloud
   Show answer

   Correct: A. Paying only for consumed resources converts large upfront capital expense into variable operating expense, a core AWS benefit. The lowest-price claim is incorrect because cost depends on architecture and purchasing options. Cloud does not eliminate monitoring or operations, and under the shared responsibility model the customer still secures their data, so those options are wrong.

2. A team is justifying a move to AWS and lists business advantages of cloud computing to leadership. Which statements correctly describe AWS cloud benefits? (Choose TWO)

   • A. You benefit from massive economies of scale through aggregated AWS usage
   • B. You can stop guessing capacity and scale elastically with demand
   • C. AWS removes the customer's responsibility for patching guest operating systems
   • D. Every workload on AWS is automatically cheaper than running on-premises
   • E. Reserved Instances are required before you can launch any EC2 instance
   Show answer

   Correct: A and B. Economies of scale and the ability to stop guessing capacity are two of the six advantages of cloud computing. AWS does not remove customer responsibility for patching guest operating systems on EC2, that remains the customer's job under shared responsibility. Cloud is not automatically cheaper for every workload, and Reserved Instances are an optional pricing model, not a prerequisite for launching EC2, so those options are incorrect.

3. An application must automatically add capacity during traffic spikes and remove it when demand falls, with no manual intervention. Which cloud characteristic enables this behavior?

   • A. Elasticity, scaling resources out and in to match demand
   • B. Fault tolerance achieved through Multi-AZ database replicas
   • C. Vertical scaling by permanently resizing to the largest instance
   • D. High durability provided by Amazon S3 object replication
   Show answer

   Correct: A. Elasticity is the ability to automatically add and remove resources as demand changes, typically via Auto Scaling. Fault tolerance with Multi-AZ improves availability but does not adjust capacity to demand. Permanently resizing to the largest instance is overprovisioning, not elastic scaling, and S3 durability concerns data protection, not compute capacity, so those options are incorrect.

4. An architect must design for high availability so the application survives a single data center failure within one geographic area. Which AWS global infrastructure approach should be used?

   • A. Deploy across multiple Availability Zones within the same Region
   • B. Deploy the entire workload into a single Availability Zone
   • C. Rely only on CloudFront edge locations for compute redundancy
   • D. Place all resources in one Local Zone close to end users
   Show answer

   Correct: A. Availability Zones are physically separate data centers within a Region, so spreading workloads across multiple AZs survives a single data center failure. A single AZ deployment has no redundancy and fails entirely if that AZ is lost. CloudFront edge locations cache content and do not run application compute, and a single Local Zone is also one location, so those options are incorrect.

5. During an audit a customer asks who is responsible for securing the physical hardware and the hypervisor that runs EC2 instances. Under the AWS Shared Responsibility Model, who is accountable?

   • A. AWS, which handles security of the cloud infrastructure
   • B. The customer, who must harden the underlying hypervisor
   • C. A third-party auditor contracted directly by the customer
   • D. The customer's internet service provider and network carrier
   Show answer

   Correct: A. AWS is responsible for security of the cloud, including physical facilities, hardware, and the hypervisor virtualization layer. The customer cannot access or harden the hypervisor, so that option is incorrect. A third-party auditor only assesses controls and the ISP has no role in AWS infrastructure security, so those options are wrong.

Last updated: 2026-10-19

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