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Question 397 - SCS-C01 discussion

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You have an Amazon VPC that has a private subnet and a public subnet in which you have a NAT instance server. You have created a group of EC2 instances that configure themselves at startup by downloading a bootstrapping script from S3 that deploys an application via GIT.

Which one of the following setups would give us the highest level of security?

Choose the correct answer from the options given below.

Please select:

A.
EC2 instances in our public subnet, no EIPs, route outgoing traffic via the IGW
Answers
A.
EC2 instances in our public subnet, no EIPs, route outgoing traffic via the IGW
B.
EC2 instances in our public subnet, assigned EIPs, and route outgoing traffic via the NAT
Answers
B.
EC2 instances in our public subnet, assigned EIPs, and route outgoing traffic via the NAT
C.
EC2 instance in our private subnet, assigned EIPs, and route our outgoing traffic via our IGW
Answers
C.
EC2 instance in our private subnet, assigned EIPs, and route our outgoing traffic via our IGW
D.
EC2 instances in our private subnet, no EIPs, route outgoing traffic via the NAT
Answers
D.
EC2 instances in our private subnet, no EIPs, route outgoing traffic via the NAT
Suggested answer: D

Explanation:

The below diagram shows how the NAT instance works. To make EC2 instances very secure, they need to be in a private sub such as the database server shown below with no EIP and all traffic routed via the NAT.

Options A and B are invalid because the instances need to be in the private subnet Option C is invalid because since the instance needs to be in the private subnet, you should not attach an EIP to the instance For more information on NAT instance, please refer to the below Link: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuideA/PC lnstance.html! The correct answer is: EC2 instances in our private subnet no EIPs, route outgoing traffic via the NAT Submit your Feedback/Queries to our Experts

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asked 16/09/2024
AXEL AXELOPOULOS
41 questions
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