You have a private subnet defined in a VPC. The instances in this subnet have already been configured to access the internet. Now there is a requirement for content caching and faster download speeds on these instances. How can you accomplish this?

Answer options:

A.Move the EC2 Instances to a public subnet.
B.Install Squid Proxy on an EC2 Instance.
C.Use a NAT gateway in the public subnet.
D.Use a NAT gateway in the private subnet.

Answer – B
Squid allows Internet Providers to save on their bandwidth through content caching. Cached content means data is served locally, and users will see this through faster download speeds with frequently-used content.
Option A is incorrect since the instance needs to remain in the private subnet.
Options C and D are incorrect since we cannot use a NAT gateway in this circumstance.
For more information on the squid proxy, please refer to the below URL
http://www.squid-cache.org/Intro/why.html