Learn how Amazon S3 costs are calculated for the AWS Certified Cloud Practitioner CLF-C02 exam. Understand storage, data transfer, and request pricing to ace your certification.
Table of Contents
Question
How are costs calculated in Amazon S3?
A. Based on the number of GET requests
B. Based on the number of objects stored
C. Based on the total size of stored data and data transfer
D. Based on the duration of data storage
Answer
C. Based on the total size of stored data and data transfer
Explanation
Costs in Amazon S3 are calculated based on the total size of data stored and data transfer, including object storage, requests, and data transfers.
Amazon S3 costs are primarily determined by two key factors: the total size of stored data and data transfer usage. Let’s break this down comprehensively to help you understand why this is the correct answer for the AWS Certified Cloud Practitioner (CLF-C02) exam.
Key Cost Components of Amazon S3
Storage Costs
- Charges are based on the amount of data stored in your S3 bucket, measured in gigabytes (GB) per month.
- Pricing varies by storage class (e.g., S3 Standard, S3 Intelligent-Tiering, S3 Glacier) and region.
- Example: For S3 Standard, the first 50 TB costs $0.023 per GB/month in most regions.
Data Transfer Costs
- Data transferred out of S3 to the internet or other AWS regions incurs charges.
- Example: The first 10 TB of data transferred out to the internet costs $0.09 per GB, with decreasing rates for higher volumes.
Request Costs (Supplementary)
- While not the primary cost driver, operations like GET, PUT, and DELETE requests also incur fees.
- Example: GET requests cost $0.004 per 10,000 requests in the US East (N. Virginia) region.
Why “C” Is Correct
The question asks how costs are calculated in Amazon S3. While other options touch on specific aspects of pricing (e.g., number of GET requests or duration of storage), they do not reflect the primary cost drivers:
Option A (GET requests): Request costs exist but are typically minor compared to storage and data transfer fees.
Option B (Number of objects stored): Costs depend on the total size of stored data, not the object count itself.
Option D (Duration of data storage): Duration influences monthly billing but is secondary to storage size and transfer volume.
Thus, C. Based on the total size of stored data and data transfer is accurate because these are the most significant contributors to your overall S3 bill.
Key Takeaways for Exam Preparation
- Focus on understanding Amazon S3’s pricing model, especially storage tiers and data transfer charges.
- Remember that request costs are supplementary and not as impactful as storage or transfer fees.
- Use AWS’s free tier for hands-on experience with 5 GB of free storage and limited free requests/data transfer to reinforce your learning.
By mastering these concepts, you’ll be well-prepared to answer similar questions on the AWS CLF-C02 exam confidently!
Amazon AWS Certified Cloud Practitioner CLF-C02 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Amazon AWS Certified Cloud Practitioner CLF-C02 exam and earn Amazon AWS Certified Cloud Practitioner CLF-C02 certification.