Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A company is migrating its IT operations to AWS. Previously, when a developer needed a new server for a project, the developer had to submit a formal request to the IT department. The request would be reviewed, approved, and then a physical server would be procured, configured, and deployed—a process that often took several weeks. After migrating to AWS, the developer can log in to the AWS Management Console and launch a new Amazon EC2 instance with the exact required configuration within minutes, without any interaction with IT staff. Which essential characteristic of cloud computing does this scenario BEST demonstrate?
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
Best answer
On-demand self-service
Correct. On-demand self-service allows users to provision and manage computing resources as needed without requiring human interaction with the service provider. The developer's ability to launch an EC2 instance directly from the AWS Management Console without IT involvement is a clear example of this characteristic.
B
Distractor review
Broad network access
Incorrect. Broad network access refers to the ability to access cloud resources over the network using standard protocols from a variety of devices (e.g., laptops, smartphones). While the developer accesses AWS via the internet, the primary point of the scenario is the ability to self-provision resources, not the method of access.
C
Distractor review
Resource pooling
Incorrect. Resource pooling means the cloud provider's computing resources are pooled to serve multiple customers using a multi-tenant model, with physical and virtual resources dynamically assigned and reassigned according to demand. The scenario focuses on the ease of provisioning, not on how resources are shared among customers.
D
Distractor review
Measured service
Incorrect. Measured service means cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service (e.g., storage, processing, bandwidth). The scenario describes the provisioning process, not the tracking or billing of usage.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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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?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: On-demand self-service — This scenario highlights on-demand self-service, a core characteristic of cloud computing. With on-demand self-service, users can provision computing resources—such as virtual servers, storage, and databases—as needed automatically without requiring human interaction with the service provider. In this case, the developer gained the ability to provision a server directly via the AWS Management Console, eliminating the previous multi-day manual process. The other options describe different characteristics: broad network access (access over the network from various devices), resource pooling (multi-tenant infrastructure shared among customers), and measured service (metering and billing based on usage). While these are also cloud characteristics, they are not the primary focus of the described benefit.
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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