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AWS Certified Security - Specialty Questions and Answers

Question 33

A company receives a notification from the AWS Abuse team about an AWS account The notification indicates that a resource in the account is compromised The company determines that the compromised resource is an Amazon EC2 instance that hosts a web application The compromised EC2 instance is part of an EC2 Auto Scaling group

The EC2 instance accesses Amazon S3 and Amazon DynamoDB resources by using an 1AM access key and secret key The 1AM access key and secret key are stored inside the AMI that is specified in the Auto Scaling group's launch configuration The company is concerned that the credentials that are stored in the AMI might also have been exposed

The company must implement a solution that remediates the security concerns without causing downtime for the application The solution must comply with security best practices

Which solution will meet these requirements'?

Options:

Rotate the potentially compromised access key that the EC2 instance uses Create a new AM I without the potentially compromised credentials Perform an EC2 Auto Scaling instance refresh

Delete or deactivate the potentially compromised access key Create an EC2 Auto Scaling linked 1AM role that includes a custom policy that matches the potentiallycompromised access key permission Associate the new 1AM role with the Auto Scaling group Perform an EC2 Auto Scaling instance refresh.

Delete or deactivate the potentially compromised access key Create a new AMI without the potentially compromised credentials Create an 1AM role that includes the correct permissions Create a launch template for the Auto Scaling group to reference the new AMI and 1AM role Perform an EC2 Auto Scaling instance refresh

Rotate the potentially compromised access key Create a new AMI without the potentially compromised access key Use a user data script to supply the new access key as environmental variables in the Auto Scaling group's launch configuration Perform an EC2 Auto Scaling instance refresh

Question 34

A company uses AWS Organizations and has production workloads across multiple AWS accounts. A security engineer needs to design a solution that will proactively monitor for suspicious behavior across all the accounts that contain production workloads.

The solution must automate remediation of incidents across the production accounts. The solution also must publish a notification to an Amazon Simple Notification Service (Amazon SNS) topic when a critical security finding is detected. In addition, the solution must send all security incident logs to a dedicated account.

Which solution will meet these requirements?

Options:

Activate Amazon GuardDuty in each production account. In a dedicated logging account. aggregate all GuardDuty logs from each production account.Remediate incidents by configuring GuardDuty to directly invoke an AWS Lambda function. Configure the Lambda function to also publish notifications to the SNS topic.

Activate AWS security Hub in each production account. In a dedicated logging account. aggregate all security Hub findings from each production account. Remediate incidents by ustng AWS Config and AWS Systems Manager. Configure Systems Manager to also pub11Sh notifications to the SNS topic.

Activate Amazon GuardDuty in each production account. In a dedicated logging account. aggregate all GuardDuty logs from each production account Remediate incidents by using Amazon EventBridge to invoke a custom AWS Lambda function from the GuardDuty findings. Configure the Lambda function to also publish notifications to the SNS topic.

Activate AWS Security Hub in each production account. In a dedicated logging account. aggregate all Security Hub findings from each production account. Remediate incidents by using Amazon EventBridge to invoke a custom AWS Lambda function from the Security Hub findings. Configure the Lambda function to also publish notifications to the SNS topic.

Answer:

Explanation:

The correct answer is D.

To design a solution that will proactively monitor for suspicious behavior across all the accounts that contain production workloads, the security engineer needs to use a service that can aggregate and analyze security findings from multiple sources. AWS Security Hub is a service that provides a comprehensive view of your security posture across your AWS accounts and enables you to check your environment against security standards and best practices. Security Hub also integrates with other AWS services, such as Amazon GuardDuty, AWS Config, and AWS Systems Manager, to collect and correlate security findings.

To automate remediation of incidents across the production accounts, the security engineer needs to use a service that can trigger actions based on events. Amazon EventBridge is a serverless event bus service that allows you to connect your applications with data from a variety of sources. EventBridge can use rules to match events and route them to targets for processing. You can use EventBridge to invoke a custom AWS Lambda function from the Security Hub findings. Lambda is a serverless compute service that lets you run code without provisioning or managing servers.

To publish a notification to an Amazon SNS topic when a critical security finding is detected, the security engineer needs to use a service that can send messages to subscribers. Amazon SNS is a fully managed messaging service that enables you to decouple and scale microservices, distributed systems, and serverless applications. SNS can deliver messages to a variety of endpoints, such as email, SMS, or HTTP. You can configure the Lambda function to also publish notifications to the SNS topic.

To send all security incident logs to a dedicated account, the security engineer needs to use a service that can aggregate and store log data from multiple sources. AWS Security Hub allows you to aggregate security findings from multiple accounts into a single account using the delegated administrator feature. This feature enables you to designate an AWS account as the administrator for Security Hub in an organization. The administrator account can then view and manage Security Hub findings from all member accounts.

Therefore, option D is correct because it meets all the requirements of the solution. Option A is incorrect because GuardDuty does not provide a comprehensive view of your security posture across your AWS accounts. GuardDuty is primarily a threat detection service that monitors for malicious or unauthorized behavior. Option B is incorrect because Config and Systems Manager are not designed to automate remediation of incidents based on Security Hub findings. Config is a service that enables you to assess, audit, and evaluate the configurations of your AWS resources, while Systems Manager is a service that allows you to manage your infrastructure on AWS at scale. Option C is incorrect because GuardDuty does not provide a comprehensive view of your security posture across your AWS accounts.

[References:, AWS Security Hub, Amazon EventBridge, AWSLambda, Amazon SNS, Aggregating Security Hub findings across accounts, , , , , ]

Question 35

A Security Engineer creates an Amazon S3 bucket policy that denies access to all users. A few days later, the Security Engineer adds an additional statement to the bucket policy to allow read-only access to one other employee. Even after updating the policy, the employee still receives an access denied message.

What is the likely cause of this access denial?

Options:

The ACL in the bucket needs to be updated

The IAM policy does not allow the user to access the bucket

It takes a few minutes for a bucket policy to take effect

The allow permission is being overridden by the deny

Question 36

An ecommerce company has a web application architecture that runs primarily on containers. The application containers are deployed on Amazon Elastic Container Service (Amazon ECS). The container images for the application are stored in Amazon Elastic Container Registry (Amazon ECR).

The company's security team is performing an audit of components of the application architecture. The security team identifies issues with some container images that are stored in the container repositories.

The security team wants to address these issues by implementing continual scanning and on-push scanning of the container images. The security team needs to implement a solution that makes any findings from these scans visible in a centralized dashboard. The security team plans to use the dashboard to view these findings along with other security-related findings that they intend to generate in the future.

There are specific repositories that the security team needs to exclude from the scanning process.

Which solution will meet these requirements?

Options:

Use Amazon Inspector. Create inclusion rules in Amazon ECR to match repos-itories that need to be scanned. Push Amazon Inspector findings to AWS Se-curity Hub.

Use ECR basic scanning of container images. Create inclusion rules in Ama-zon ECR to match repositories that need to be scanned. Push findings to AWS Security Hub.

Use ECR basic scanning of container images. Create inclusion rules in Ama-zon ECR to match repositories that need to be scanned. Push findings to Amazon Inspector.

Use Amazon Inspector. Create inclusion rules in Amazon Inspector to match repositories that need to be scanned. Push Amazon Inspector findings to AWS Config.

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AWS Certified Security - Specialty Questions and Answers

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CompTIA

Fortinet

Microsoft

Salesforce