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?
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A. B. C. D.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.htmlOption A is incorrect because moving the instances to a public subnet means that they will be directly accessible from the internet. This may not be desirable, especially if the instances contain sensitive data or services that are not intended to be public-facing.
Option B is a viable solution because Squid Proxy is a caching proxy that can be used to cache frequently accessed content, thereby improving download speeds for subsequent requests. Squid Proxy can be installed on an EC2 instance in the private subnet, and the instances in the same subnet can be configured to use this proxy for their internet traffic.
Option C is also a viable solution because a NAT gateway can be used to provide internet access to instances in a private subnet. A NAT gateway acts as a gateway between the private subnet and the public internet and allows instances in the private subnet to access the internet without being directly accessible from the internet. The instances in the private subnet can be configured to use the NAT gateway as their default route for internet traffic.
Option D is incorrect because a NAT gateway in the private subnet does not provide any additional benefits over a NAT gateway in the public subnet. In fact, a NAT gateway in the public subnet is the recommended configuration for providing internet access to instances in a private subnet.
Therefore, the best option to accomplish content caching and faster download speeds on instances in a private subnet is to install Squid Proxy on an EC2 instance in the private subnet or use a NAT gateway in the public subnet. The choice between these two options depends on the specific requirements and constraints of the use case.