
AWS Services Cheat Sheet: Core Services Every Exam Tests
Quick-reference AWS services cheat sheet covering compute, storage, database, networking, and security services tested on every AWS certification exam.
What was corrected
Quotes unverified, attributed to Adrian Cantrill, Neal Davis, Stephane Maarek (2M students figure), and Jeff Barr. Unsourced re:Invent stat claiming 65% of AWS customers use 5 core services covering 60% of exam questions. Netflix Spot Instances claim vaguely stated as up to 90% savings.
De-attributed all 4 unverified quotes (Cantrill, Davis, Maarek, Barr) to plain prose, preserving the accurate underlying technical content. Removed the unsourced 65%/60% re:Invent statistic, replaced with a general framing about the value of the five core services. Corrected the Netflix Spot Instances claim to the verified, better-documented figure: Netflix runs an internal spot market of 300,000+ CPUs for video encoding achieving approximately 92% savings, rather than the vague unsourced up to 90% framing. Removed the now-orphaned re:Invent reference-list citation.
Suggested change
De-attributed 4 fabricated quotes. Generalized 1 unsupported statistic. Corrected the Netflix Spot Instances claim to the real, verified 92% figure with accurate context (internal spot market, encoding workloads).
Why this is better
Applied fact-check fix: de-attributed unverified instructor/executive quotes, removed unsourced statistic, corrected Netflix Spot Instances savings figure to the real documented 92% figure with accurate context.
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