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Question 271 - SCS-C02 discussion

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A company needs complete encryption of the traffic between external users and an application. The company hosts the application on a fleet of Amazon EC2 instances that run in an Auto Scaling group behind an Application Load Balancer (ALB).

How can a security engineer meet these requirements?

A.
Create a new Amazon-issued certificate in AWS Secrets Manager. Export the certificate from Secrets Manager. Import the certificate into the ALB and the EC2 instances.
Answers
A.
Create a new Amazon-issued certificate in AWS Secrets Manager. Export the certificate from Secrets Manager. Import the certificate into the ALB and the EC2 instances.
B.
Create a new Amazon-issued certificate in AWS Certificate Manager (ACM). Associate the certificate with the ALB. Export the certificate from ACM. Install the certificate on the EC2 instances.
Answers
B.
Create a new Amazon-issued certificate in AWS Certificate Manager (ACM). Associate the certificate with the ALB. Export the certificate from ACM. Install the certificate on the EC2 instances.
C.
Import a new third-party certificate into AWS Identity and Access Management (IAM). Export the certificate from IAM. Associate the certificate with the ALB and the EC2 instances.
Answers
C.
Import a new third-party certificate into AWS Identity and Access Management (IAM). Export the certificate from IAM. Associate the certificate with the ALB and the EC2 instances.
D.
Import a new third-party certificate into AWS Certificate Manager (ACM). Associate the certificate with the ALB. Install the certificate on the EC2 instances.
Answers
D.
Import a new third-party certificate into AWS Certificate Manager (ACM). Associate the certificate with the ALB. Install the certificate on the EC2 instances.
Suggested answer: D

Explanation:

The correct answer is D) Import a new third-party certificate into AWS Certificate Manager (ACM). Associate the certificate with the ALB. Install the certificate on the EC2 instances.

This answer is correct because it meets the requirements of complete encryption of the traffic between external users and the application. By importing a third-party certificate into ACM, the security engineer can use it to secure the communication between the ALB and the clients. By installing the same certificate on the EC2 instances, the security engineer can also secure the communication between the ALB and the instances. This way, both the front-end and back-end connections are encrypted with SSL/TLS1.

The other options are incorrect because:

A) Creating a new Amazon-issued certificate in AWS Secrets Manager is not a solution, because AWS Secrets Manager is not a service for issuing certificates, but for storing and managing secrets such as database credentials and API keys2. AWS Secrets Manager does not integrate with ALB or EC2 for certificate deployment.

B) Creating a new Amazon-issued certificate in AWS Certificate Manager (ACM) and exporting it from ACM is not a solution, because ACM does not allow exporting Amazon-issued certificates3. ACM only allows exporting private certificates that are issued by an AWS Private Certificate Authority (CA)4.

C) Importing a new third-party certificate into AWS Identity and Access Management (IAM) is not a solution, because IAM is not a service for managing certificates, but for controlling access to AWS resources5. IAM does not integrate with ALB or EC2 for certificate deployment.

1: How SSL/TLS works 2: What is AWS Secrets Manager? 3: Exporting an ACM Certificate 4: Exporting Private Certificates from ACM 5: What is IAM?

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asked 16/09/2024
Ravi Kundu
31 questions
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