CertifyDeckCargando contenido…
CLF-C02 · Sample questions
10 real questions from the CertifyDeck CLF-C02 bank, spread across the domains of the official AWS Certified Cloud Practitioner skills outline, with the correct answer and a full explanation of why the other options are wrong. They are original questions written from the public syllabus, not exam dumps, and they are the same style you will find in the practice tests and mock exams.
Correct answer: D. AWS operates the host OS, virtualization and physical layers
The model can relieve the customer's operational burden because AWS operates, manages and controls the components from the host operating system and virtualization layer down to the physical security of the facilities. Customers remain responsible for complying with the laws and regulations that apply to them, so AWS does not take over those obligations. Applying permissions with IAM, and protecting application code and data, stay with the customer.
Correct answer: C. IAM last accessed information
IAM last accessed information shows when identities and policies last used AWS services and actions, which helps identify unused permissions so they can be removed and policies refined toward least privilege. A password policy sets rules for IAM user passwords and says nothing about permission usage. AWS Artifact agreements are legal agreements with AWS, and Inspector findings describe software vulnerabilities.
Correct answer: A. Multi-factor authentication (MFA)
MFA requires a unique authentication response from a supported device in addition to the sign-in credentials; a virtual authenticator app on a phone generates the time-based codes that the user types. A password policy only sets rules for the password itself and adds no second factor. Access keys are long-term credentials for programmatic access, and IAM Access Analyzer analyzes access to resources and policies.
Correct answer: C. AWS Professional Services
AWS Professional Services is the AWS team that helps organizations design, build, migrate and manage their AWS workloads, including large-scale migrations and modernization. The AWS Partner Solutions Finder locates third-party AWS Partners, so it does not meet the requirement for experts employed by AWS. The Knowledge Center offers self-service articles, and AWS Trust & Safety handles abuse reports.
Correct answer: D. AWS Pricing Calculator
AWS Pricing Calculator is a free web-based planning tool for modeling solutions before building them; the public website does not require an AWS account, and estimates can be saved as a shareable link or exported to CSV or PDF. AWS Cost Explorer analyzes the costs an existing account has already incurred, so it cannot estimate an architecture that has not been built. AWS Budgets and the Cost and Usage Report also work on an account's actual spending.
Correct answer: D. AWS X-Ray
AWS X-Ray collects data about the requests an application serves, including calls to downstream AWS resources, microservices, databases and web APIs, and builds a trace map that helps identify issues and optimization opportunities. AWS CloudTrail records actions taken by users, roles and services in the account for auditing; it does not trace application requests through services. CodePipeline automates software releases and CodeBuild compiles and tests code.
Correct answer: A. Amazon Kinesis Data Streams
Amazon Kinesis Data Streams is a scalable, durable real-time streaming service that continuously captures data such as website clickstreams from many sources and makes it available in milliseconds for real-time dashboards and anomaly detection. Amazon Athena runs SQL queries on data already stored in Amazon S3, so it does not ingest streams as they arrive. AWS Data Exchange is for subscribing to third-party data, and AWS Lake Formation sets up a secure data lake.
Correct answer: A. Sustainability
The sustainability pillar focuses on environmental impact, especially energy consumption and efficiency; its design principles include understanding your impact per unit of work and establishing goals such as reducing compute and storage per transaction. Cost optimization measures business output against the cost of delivering it, not the energy impact of the workload.
Correct answer: B. Power and cooling for the physical servers
Besides the upfront spending on hardware, software licenses and facilities, on-premises infrastructure has ongoing expenses such as power for the physical servers, cooling and staffing. Per-second EC2 charges, managed-service request charges and outbound data transfer charges are costs of using AWS, not of the on-premises environment.
Correct answer: A. Test systems at production scale
Testing systems at production scale means creating a production-scale test environment on demand, completing the tests and decommissioning it, so you pay only while it runs. Game days are scheduled simulations of events in production to see how the architecture and processes respond, not temporary copies of the environment for testing.
Answer each question before opening the explanation, and write down why you discarded the other options. On CLF-C02, most mistakes come from choosing an option that is technically possible but does not meet every requirement in the scenario.
These 10 questions are a taste of the format, not a diagnostic. To know which domains you fail, practice by domain for free and take a timed mock exam that mirrors the official weights and duration.
Start for free, no sign-up or card. Every question includes an explanation like the ones above, and the mock exam reproduces the official CLF-C02 format.