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Objective 1.4

CLF-C02

Understand concepts of cloud economics.

Objective 1.4 sits in Cloud Concepts, which carries 24% of the Cloud Practitioner exam. The questions below are original, written from the official objective title above, and each explanation cites the Amazon Web Services (AWS) page it rests on.

Objective title verbatim from the official objectives. Amazon Web Services (AWS) exam page ↗

A worked example

Shown solved, with the whole explanation open: this is what every question here carries.

1-4Cloud Concepts

A team's development and test environments run around the clock but are used only during business hours on weekdays. Which cost optimization principle applies?

Measure overall efficiencyMeasuring efficiency compares business output against delivery cost. It would tell you the schedule worked, once you had set one.
Cloud financial managementCloud financial management is the organizational capability: the people, programs and processes. It is the wrapper around a decision like this one.
Adopt a consumption modelCorrect · your answerCorrect. AWS puts the saving from stopping development and test resources when they are not in use at around 75 percent.
Attribute expenditureAttributing expenditure tells you whose budget these environments land in. Knowing the owner does not switch anything off.

Correct.

Checked against docs.aws.amazon.com, August 2026

Concept

Paying by the hour only helps if you switch things off. The saving is not automatic, it comes from matching how long a resource runs to how long anyone needs it.

Why C

Stopping non-production resources outside working hours takes 168 paid hours a week down to 40, which is roughly three quarters off the bill for those environments.

Source

Adopt a consumption model: Pay only for the computing resources you consume, and increase or decrease usage depending on business requirements. For example, development and test environments are typically only used for eight hours a day during the work week. You can stop these resources when they’re not in use for a potential cost savings of 75% (40 hours versus 168 hours)…

AWS Docs: Cost optimization design principles, checked August 2026
#cost-optimization#consumption-model#cloud-economics

Now you: objective 1.4 questions

No account needed. The explanation opens when you answer.

Sample question 1 of 3

1-4Cloud Concepts

A company moves to AWS to stop spending on undifferentiated heavy lifting and put that effort into its product instead. Which work does AWS take on under that principle?

Sample question 2 of 3

1-4Cloud Concepts

A team needs a cost estimate for a design that has not been built yet, to take to the budget owner. Which tool gives that?

Sample question 3 of 3

1-4Cloud Concepts

A finance team's review finds EC2 instances sitting at 4 percent CPU for months. Which service recommends a smaller instance from that utilisation history?

That’s 3 of the full Cloud Practitioner bank.

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Read the sources

These are the official pages the questions above cite. Reading them is studying the objective from the primary source, which is what the explanations point you toward anyway.

More objectives in Cloud Concepts