11 CLF-C02 practice questions with answer reveals and spoken explanations. Choose before the reveal and keep your score.
Certification: AWS Certified Cloud Practitioner (CLF-C02). Independent practice, not an official exam.
How to use this round:
– Pause each question if you need more time to decide.
– Compare your answer after the reveal.
– Review the concepts you missed, then practice again.
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What you will practice
- Which AWS feature can be used to launch a pre-configured Amazon Elastic Compute Cloud (EC2) instance?
- When running applications in the AWS Cloud which common tasks can AWS manage on behalf of their customers? (S…
- Which benefits can a company gain by deploying a relational database on Amazon RDS instead of Amazon EC2? (Se…
- According to the AWS shared responsibility model, which of the following is a responsibility of AWS?
- A user needs to identify underutilized Amazon EC2 instances to reduce costs. Which AWS service or feature wil…
- An application uses a PostgreSQL database running on a single Amazon EC2 instance. A Cloud Practitioner has b…
Answers and explanations
Tap a question to expand the answer and the exam reasoning. Try to commit to your own pick first.
Q1. Which AWS feature can be used to launch a pre-configured Amazon Elastic Compute Cloud (EC2) instance?
Answer: B. Amazon Machine Image (AMI)
An Amazon Machine Image contains the template needed to launch a pre-configured EC2 instance, including the OS and software. On the exam, remember EBS is storage, Systems Manager manages infrastructure, and AppStream 2.0 streams applications to users.
Q2. When running applications in the AWS Cloud which common tasks can AWS manage on behalf of their customers? (Select TWO.)
Answer: C,E. Taking a backup of a database || Patching database software
With managed services like Amazon RDS, AWS handles database backups and patches the database software and operating system. A practical cue for shared responsibility: AWS manages anything of the service itself, while schemas, code auditing, and application security testing stay with the customer.
Q3. Which benefits can a company gain by deploying a relational database on Amazon RDS instead of Amazon EC2? (Select TWO.)
Answer: A,C. Automated backups || Software patching
RDS handles automated backups and automatic software patching for you, unlike a self-managed database on EC2. Exam cue: managed services remove OS-level tasks like patching and backups, but schema design and indexing remain the customer's responsibility.
Q4. According to the AWS shared responsibility model, which of the following is a responsibility of AWS?
Answer: A. Updating the firmware on the underlying EC2 hosts.
Under the shared responsibility model, AWS manages the infrastructure, including firmware on the physical EC2 host servers. Security groups, network ACLs, and patching guest operating systems or applications are always customer responsibilities.
Q5. A user needs to identify underutilized Amazon EC2 instances to reduce costs. Which AWS service or feature will meet this requirement?
Answer: A. AWS Trusted Advisor
Trusted Advisor includes a cost optimization check that flags underutilized EC2 instances based on CPU and network usage. Cost Explorer shows spending but not resource utilization, so it cannot identify idle or underused instances.
Q6. An application uses a PostgreSQL database running on a single Amazon EC2 instance. A Cloud Practitioner has been asked to increase the availability of the database so there is automatic recovery in the case of a failure. Which tasks can th…
Answer: B. Migrate the database to Amazon RDS and enable the Multi-AZ feature.
RDS Multi-AZ maintains a synchronous standby replica in another Availability Zone and fails over automatically when the primary fails. Exam cue: Multi-AZ equals availability and failover, while Read Replicas serve scalability, not automatic recovery.
Q7. Which AWS Cloud service provides recommendations on how to optimize performance for AWS services?
Answer: C. AWS Trusted Advisor
Trusted Advisor provides best practice recommendations across cost, performance, security, fault tolerance, and service limits. CloudWatch monitors metrics but does not recommend optimizations, and Inspector focuses on security assessments.
Q8. A company uses Amazon EC2 instances to run applications that are dedicated to different departments. The company needs to break out the costs of these applications and allocate them to the relevant department. The EC2 instances run in a si…
Answer: B. Create tags by department on the instances and then run a cost allocation report.
Tagging resources by department and activating cost allocation tags generates cost reports broken out by those tags. Billing alerts only signal threshold breaches, and Cost Explorer does not segment spend without tags applied.
Q9. A Cloud Practitioner anticipates an increase in application traffic at a future date and time when a sales event will take place. How can the Cloud Practitioner configure Amazon EC2 Auto Scaling to ensure the right number of Amazon EC2 ins…
Answer: C. Configure a scheduled scaling policy.
Scheduled scaling launches capacity at a specific date and time you define, which suits a known future sales event. Predictive scaling relies on historical trends and cannot account for a one-off event the model has never seen.
Q10. A website has a global customer base and users have reported poor performance when connecting to the site. Which AWS service will improve the customer experience by reducing latency?
Answer: A. Amazon CloudFront
CloudFront is a CDN that caches content at edge locations close to global users, cutting latency. Direct Connect provides a private dedicated link from on-premises to AWS and does not speed up access for worldwide end users.
Q11. A Cloud Practitioner is developing a new application and wishes to integrate features of AWS services directly into the application. Which of the following is the BEST tool for this purpose?
Answer: A. AWS Software Development Kit
The AWS SDKs provide language-specific APIs for building AWS service features directly into an application. On the exam, remember the CLI is for command-line administration, not application integration, and the Code* services handle deployment pipelines.
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