Exams / CLF-C02 / Cloud economics / Question 2
CLF-C02 practice question: Cloud economics (2 of 4)
Cloud Concepts A free question from our original CLF-C02 practice exam. Try it, then open the answer to see why each option is right or wrong.
A company wants to use automation to reduce its AWS costs. Which TWO actions achieve this? (Choose two.)
Choose two answers.
- AA. Use a schedule to stop development and test instances automatically outside working hours.
- BB. Increase the size of every instance so that engineers need to tune performance less often.
- CC. Turn off AWS CloudTrail in every account to save on log storage.
- DD. Create test environments from AWS CloudFormation templates and delete each stack when testing ends.
- EE. Buy three-year Reserved Instances for test servers that run only during the working day.
Show the answer and explanation
Answers: A, D
- A. Right: Correct. Automatically stopping instances when nobody uses them means the company stops paying for idle compute time.
- B. Wrong: Bigger instances cost more and usually increase waste. This is the opposite of rightsizing.
- C. Wrong: This removes an important audit record and is not automation. Any saving would come at a serious security cost.
- D. Right: Correct. Infrastructure as code lets teams create environments on demand and remove every resource in one step, so nothing is left running.
- E. Wrong: This is a pricing commitment, not automation, and paying for reserved capacity that sits unused at night can increase waste.
Explanation
Automation lowers cost by making sure resources exist only while they are needed. Scheduled start and stop of non-production instances, and creating and deleting whole environments with AWS CloudFormation, both stop the company paying for idle resources and reduce the manual effort involved.
Study
Keep practising
Answer questions with a score at the end, or practise just this topic with the explanation after each one. No sign-up needed.