Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company runs a data processing job once per month. The job takes approximately 3 hours to complete when run on a single server. The company wants to minimize operational overhead and pay only for the compute time used during the job. The job does not require user interaction and must be able to automatically retry if a task fails. Which AWS service should the company use?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
AWS Lambda
Incorrect. AWS Lambda has a maximum execution timeout of 15 minutes per invocation, so it cannot handle a 3-hour batch job. Additionally, Lambda is event-driven and designed for short-running functions, not long-running batch processing.
B
Best answer
AWS Batch
Correct. AWS Batch is a fully managed service that enables you to run batch computing workloads of any scale. It automatically provisions compute resources (e.g., Amazon EC2 instances or AWS Fargate), schedules jobs, and retries failed tasks. You only pay for the compute resources consumed, and there is no need to manage underlying servers.
C
Distractor review
Amazon EC2
Incorrect. Running the job on Amazon EC2 would require you to launch and manage an instance, install the necessary software, and ensure the instance is running only during the job. You would need to start and stop the instance manually or set up automation. This approach incurs operational overhead and risk of paying for idle time if the instance is not terminated promptly.
D
Distractor review
AWS Elastic Beanstalk
Incorrect. AWS Elastic Beanstalk is a platform-as-a-service (PaaS) used to deploy and scale web applications and services. It is not designed for running batch jobs. Elastic Beanstalk manages capacity provisioning, load balancing, and auto-scaling for web applications, but it does not provide job scheduling or retry logic needed for batch processing.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A developer needs to launch a test server for a new application prototype. The developer logs into the AWS Management Console, selects an Amazon EC2 instance type, configures the security group, and starts the instance. The instance is running within two minutes, and the developer did not need to submit a formal request to the company's IT procurement team or wait for approval from a cloud administrator. Which essential characteristic of cloud computing does this scenario best demonstrate?
Question 2
A solutions architect is planning a new web application on AWS. The workload will include 3 Amazon EC2 instances (t3.medium) running 24/7, an Application Load Balancer, and an Amazon RDS for MySQL db.t3.small database. The architect needs to estimate the monthly cost for the first year, considering different purchasing options (On-Demand, 1-year All Upfront Reserved Instance, and Compute Savings Plan). Which AWS tool should the architect use to create this estimate?
Question 3
A company's development team frequently needs temporary test environments. A developer can log into the AWS Management Console, select an Amazon EC2 instance type, configure storage, and launch the instance within minutes without any interaction with the IT infrastructure team. This capability is an example of which essential characteristic of cloud computing?
Question 4
A company's finance team needs to analyze AWS spending in detail. They require a report that includes hourly cost data for each AWS service, each individual resource (e.g., a specific EC2 instance), and any cost allocation tags applied. The team plans to export this data to an Amazon S3 bucket and then import it into a custom business intelligence (BI) analytics dashboard. Which AWS tool should the finance team use to generate this level of detailed cost data?
Question 5
A company uses AWS for its development environment. The finance team wants to set a monthly budget of $10,000. They want to receive an email notification when the actual costs reach 80% of the budget ($8,000) and again when costs exceed the budget. The team needs a managed AWS service that can automatically send these alerts without requiring custom code or third-party tools. Which AWS service should the team use?
Question 6
A company uses AWS Organizations to manage multiple accounts. The security team needs to enforce a policy that restricts SSH access (port 22) from the internet (0.0.0.0/0) in all VPCs across all accounts. The team wants to centrally define the allowed rules and automatically apply them to newly created VPCs and security groups, while also automatically remediating any existing non-compliant security groups. Which AWS service should the team use?
FAQ
Questions learners often ask
What does this CLF-C02 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: AWS Batch — AWS Batch is designed for running batch computing workloads. It dynamically provisions the optimal quantity and type of compute resources (e.g., CPU or memory optimized instances) based on the volume and specific resource requirements of the batch jobs submitted. With AWS Batch, there is no need to install and manage batch computing software or server clusters, so you can focus on analyzing results and solving problems. AWS Batch automatically retries failed tasks and scales resources to meet job demands. AWS Lambda is limited to a maximum execution time of 15 minutes, making it unsuitable for a 3-hour job. Amazon EC2 would require the company to provision, manage, and pay for idle instances between monthly runs, increasing overhead and cost. AWS Elastic Beanstalk is a platform for deploying web applications, not for running scheduled batch jobs.
What should I do if I get this CLF-C02 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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