Correction: AWS VPC Networking Concepts Every Cert Candidate Must Master
Corrected by Melik Can Sariyer · Software Engineer and Linux OS Developer
Melik Can Sariyer found something wrong, outdated, or unsupported on this page and proposed a fix. The publisher accepted the correction.
- Role
- Correction
- Publisher
- Pass4Sure
- Topic
- Aws Certifications
- Status
- Accepted
- Date
- 11 July 2026
The exact change
'Companies like Netflix, Capital One, and Airbnb run hundreds of VPCs per AWS account...' / "Coca-Cola's cloud cost engineering team has publicly noted NAT Gateway charges as one of their top three AWS line items..." / 'Capital One has publicly described migrating from NAT Gateway to gateway endpoints for S3 access...' / 'A representative savings figure: a workload pulling 10 TB/month from S3 saves roughly $450 per month'
Large-scale AWS customers commonly run hundreds of VPCs per account and tens of thousands of subnets in aggregate (unattributed, generalized). / It is a common pattern for organizations to find NAT Gateway charges among their largest AWS networking line items in early VPC deployments (unattributed, generalized). / Organizations that migrate from NAT Gateway to gateway endpoints for S3 access commonly cite cost reduction and security improvement as the motivation (unattributed, generalized). / Kept the $450/month figure (verified correct arithmetic: 10TB x $0.045/GB) but reframed as 'an illustrative calculation, not a documented real-world case' rather than a 'representative benchmark'.
Suggested change
Generalized 3 unverifiable named-company claims. Verified and kept the $450/month NAT savings calculation (correct arithmetic), softened only its framing.
Why this is better
3 unverifiable named-company claims (Netflix/Capital One/Airbnb subnet scale, Coca-Cola NAT cost anecdote, Capital One endpoint migration) were generalized to industry-pattern statements since none could be verified as real public statements. The $450/month savings figure was confirmed as correct arithmetic matching the article's own stated NAT rate, so the number was kept; only the framing was softened since it is an illustrative calculation, not a documented real-world case. Note: a separate, unrelated Capital One 'cloud onboarding curriculum' claim elsewhere in the article was noticed but left unchanged, out of scope for this correction.
How this record is verified
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