AWS Certified Specialty SCS-C02 Book

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Question 28

A company is deploying an Amazon EC2-based application. The application will include a custom health-checking component that produces health status data in JSON format. A Security Engineer must implement a secure solution to monitor application availability in near-real time by analyzing the hearth status data.

Which approach should the Security Engineer use?

Options:

Use Amazon CloudWatch monitoring to capture Amazon EC2 and networking metrics Visualize metrics using Amazon CloudWatch dashboards.

Run the Amazon Kinesis Agent to write the status data to Amazon Kinesis Data Firehose Store the streaming data from Kinesis Data Firehose in Amazon Redshift. (hen run a script on the pool data and analyze the data in Amazon Redshift

Write the status data directly to a public Amazon S3 bucket from the health-checking component Configure S3 events to invoke an IAM Lambda function that analyzes the data

Generate events from the health-checking component and send them to Amazon CloudWatch Events. Include the status data as event payloads. Use CloudWatch Events rules to invoke an IAM Lambda function that analyzes the data.

Question 29

A company is developing an ecommerce application. The application uses Amazon EC2 instances and an Amazon RDS MySQL database. For compliance reasons, data must be secured in transit and at rest. The company needs a solution that minimizes operational overhead and minimizes cost.

Which solution meets these requirements?

Options:

Use TLS certificates from AWS Certificate Manager (ACM) with an Application Load Balancer. Deploy self-signed certificates on the EC2 instances. Ensure that the database client software uses a TLS connection to Amazon RDS. Enable encryption of the RDS DB instance. Enable encryption on the Amazon Elastic Block Store (Amazon EBS) volumes that support the EC2 instances.

Use TLS certificates from a third-party vendor with an Application Load Balancer. Install the same certificates on the EC2 instances. Ensure that the database client software uses a TLS connection to Amazon RDS. Use AWS Secrets Manager for client-side encryption of application data.

Use AWS CloudHSM to generate TLS certificates for the EC2 instances. Install the TLS certificates on the EC2 instances. Ensure that the database client software uses a TLS connection to Amazon RDS. Use the encryption keys form CloudHSM for client-side encryption of application data.

Use Amazon CloudFront with AWS WAF. Send HTTP connections to the origin EC2 instances. Ensure that the database client software uses a TLS connection to Amazon RDS. Use AWS Key Management Service (AWS KMS) for client-side encryption of application data before the data is stored in the RDS database.

Question 30

A website currently runs on Amazon EC2, wan mostly statics content on the site. Recently the site was subjected to a DDoS attack a security engineer was (asked was redesigning the edge security to help

Mitigate this risk in the future.

What are some ways the engineer could achieve this (Select THREE)?

Options:

Use IAM X-Ray to inspect the trafﬁc going to the EC2 instances.

Move the static content to Amazon S3, and front this with an Amazon Cloud Front distribution.

Change the security group conﬁguration to block the source of the attack trafﬁc

Use IAM WAF security rules to inspect the inbound trafﬁc.

Use Amazon Inspector assessment templates to inspect the inbound traffic.

Use Amazon Route 53 to distribute trafﬁc.

Question 31

A company is using Amazon Elastic Container Service (Amazon ECS) to run its container-based application on AWS. The company needs to ensure that the container images contain no severe vulnerabilities. The company also must ensure that only specific IAM roles and specific AWS accounts can access the container images.

Which solution will meet these requirements with the LEAST management overhead?

Options:

Pull images from the public container registry. Publish the images to Amazon Elastic Container Registry (Amazon ECR) repositories with scan on push configured in a centralized AWS account. Use a CI/CD pipeline to deploy the images to different AWS accounts. Use identity-based policies to restrict access to which IAM principals can access the images.

Pull images from the public container registry. Publish the images to a private container registry that is hosted on Amazon EC2 instances in a centralized AWS account. Deploy host-based container scanning tools to EC2 instances that run Amazon ECS. Restrict access to the container images by using basic authentication over HTTPS.

Pull images from the public container registry. Publish the images to Amazon Elastic Container Registry (Amazon ECR) repositories with scan on push configured in a centralized AWS account. Use a CI/CD pipeline to deploy the images to different AWS accounts. Use repository policies and identity-based policies to restrict access to which IAM principals and accounts can access the images.

Pull images from the public container registry. Publish the images to AWS CodeArtifact repositories in a centralized AWS account. Use a CI/CD pipeline to deploy the images to different AWS accounts. Use repository policies and identity-based policies to restrict access to which IAM principals and accounts can access the images.

Answer:

Explanation:

The correct answer is C. Pull images from the public container registry. Publish the images to Amazon Elastic Container Registry (Amazon ECR) repositories with scan on push configured in a centralized AWS account. Use a CI/CD pipeline to deploy the images to different AWS accounts. Use repository policies and identity-based policies to restrict access to which IAM principals and accounts can access the images.

This solution meets the requirements because:

Amazon ECR is a fully managed container registry service that supports Docker and OCI images and artifacts1. It integrates with Amazon ECS and other AWS services to simplify the development and deployment of container-based applications.
Amazon ECR provides image scanning on push, which uses the Common Vulnerabilities and Exposures (CVEs) database from the open-source Clair project to detect software vulnerabilities in container images2. The scan results are available in the AWS Management Console, AWS CLI, or AWS SDKs2.
Amazon ECR supports cross-account access to repositories, which allows sharing images across multiple AWS accounts3. This can be achieved by using repository policies, which are resource-based policies that specify which IAM principals and accounts can access the repositories and what actions they can perform4. Additionally, identity-based policies can be used to control which IAM roles in each account can access the repositories5.

The other options are incorrect because:

A. This option does not use repository policies to restrict cross-account access to the images, which is a requirement. Identity-based policies alone are not sufficient to control access to Amazon ECR repositories5.
B. This option does not use Amazon ECR, which is a fully managed service that provides image scanning and cross-account access features. Hosting a private container registry on EC2 instances would require more management overhead and additional security measures.
D. This option uses AWS CodeArtifact, which is a fully managed artifact repository service that supports Maven, npm, NuGet, PyPI, and generic package formats6. However, AWS CodeArtifact does not support Docker or OCI container images, which are required for Amazon ECS applications.

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