Correct answer - "CloudFront" : Amazon CloudFront is a fast content delivery network (CDN)
service that securely delivers data, videos, applications, and APIs to customers globally with
low latency, high transfer speeds, all within a developer-friendly environment.
Incorrect:
"ElastiCache" - Amazon ElastiCache can be used to significantly improve latency and throughput
for many read-heavy application workloads (such as social networking, gaming, media sharing and
Q&A portals)
"S3 Caching" - The service does not offer caching instead AWS recommends using S3 in combination
with CloudFront
"EFS" - Elastic File System is a file storage service which works with EC2 virtual machines
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