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NEW QUESTION # 181
A company is expanding its group of stores. On the day that each new store opens, the company wants to launch a customized web application for that store. Each store's application will have a non-production environment and a production environment. Each environment will be deployed in a separate AWS account.
The company uses AWS Organizations and has an OU that is used only for these accounts.
The company distributes most of the development work to third-party development teams. A security engineer needs to ensure that each team follows the company's deployment plan for AWS resources. The security engineer also must limit access to the deployment plan to only the developers who need access. The security engineer already has created an AWS CloudFormation template that implements the deployment plan.
What should the security engineer do next to meet the requirements in theMOST secureway?
Answer: A
Explanation:
AWS Service Catalog is specifically designed to help organizationsgovern and control how AWS resources are provisioned at scale. According to the AWS Certified Security - Specialty Official Study Guide, Service Catalog enables administrators to define approved CloudFormation templates asproductsand to control which accounts, users, or organizational units can deploy those products.
By creating a Service Catalog portfolio in the management account and sharing it with a specific OU, the security engineer ensures that only accounts within that OU can deploy the approved infrastructure. Third- party developers can deploy resources only by using the predefined CloudFormation template and cannot alter the deployment plan, which enforces consistency and compliance.
This approach also limits access to the deployment plan itself, because developers interact with the Service Catalog product rather than the raw template. No cross-account IAM roles or excessive permissions are required, which reduces the attack surface.
CloudFormation modules and extensions (Options B and D) provide reuse but do not enforce deployment governance or access control. Option C introduces unnecessary cross-account IAM roles, which is less secure than native Service Catalog sharing.
AWS documentation explicitly identifiesAWS Service Catalog + AWS Organizationsas the recommended pattern for secure, standardized multi-account deployments.
* AWS Certified Security - Specialty Official Study Guide
* AWS Service Catalog Administrator Guide
* AWS Organizations Best Practices
NEW QUESTION # 182
A company's platform has grown rapidly over the past 6 months. The company's platform architecture evolved quickly to accommodate the growth. The company's development team has been deploying features quickly by using different AWS services. The development team has not performed formal architecture reviews.
The company needs to evaluate its security posture against AWS security best practices.
Which solution will meet these requirements?
Answer: A
Explanation:
The AWS Well-Architected Tool is designed to evaluate workloads against AWS best practices, including the Security Pillar. Creating a workload and answering the security questions based on the current architecture gives the company a structured review of identity, detection, infrastructure protection, data protection, and incident response practices. Milestones record the state of the workload at a point in time and help track improvement as high-risk issues are remediated. Cost Explorer is for cost analysis, not security posture review. Security Hub CSPM provides control findings but does not replace a full Well- Architected workload review. Amazon Detective supports investigation of security findings, not architecture best-practice assessment.
NEW QUESTION # 183
A security engineer received an Amazon GuardDuty alert indicating a finding involving the Amazon EC2 instance that hosts the company ' s primary website. The GuardDuty finding received read:
UnauthorizedAccess:IAMUser/InstanceCredentialExfiltration. The security engineer confirmed that a malicious actor used API access keys intended for the EC2 instance from a country where the company does not operate. The security engineer needs to deny access to the malicious actor.
What is the first step the security engineer should take?
Answer: A
Explanation:
The findingInstanceCredentialExfiltrationindicates that credentials available to the EC2 instance (from the instance profile / IMDS) were likely stolen and then used from an unusual location. The fastest way todeny the malicious actor immediatelyis to invalidate the stolen, currently usable credentials. Because these aretemporary credentialsissued to the instance profile role, the correct first containment action is torevoke active sessionsfor that role so the stolen session credentials stop working. This directly blocks continued API use while you continue investigation and remediation.
Changing security groups (Option A) affects inbound network access to the website but does not stop an attacker from using stolen API credentials against AWS APIs. Installing agents and running assessments (Options B and C) are investigative steps that take time and do not immediately cut off the attacker's current access. After revoking sessions, best practice incident response typically continues with additional containment and eradication steps such as rotating credentials, reviewing CloudTrail for actions taken, checking for persistence (new IAM users/keys, modified policies), patching the instance, and restricting IMDS (for example, enforcing IMDSv2) to reduce risk of further credential theft.
NEW QUESTION # 184
Hotspot Question
A company is developing an incident response process to quarantine Amazon EC2 hosts that become infected by malware. The company uses an organization in AWS Organizations to manage multiple AWS accounts. The company configures AWS Security Hub in the organization to receive findings from multiple accounts that run across multiple AWS Regions. A security engineer develops an AWS Lambda function to remove all the rules from all security groups for any EC2 instance the company suspects might be infected by malware.
Select and order the correct steps from the following list to deploy and use the Lambda function as a custom action in Security Hub. Select each step one time or not at all. (Select and order THREE.)
- Create a custom action that uses the Lambda function in Security Hub.
- Create and apply a filter set to the Amazon EventBridge rule in
Security Hub.
- Define a rule in Amazon EventBridge.
- Select the custom action in Security Hub for EC2 host findings.
- Select the custom action in Security Hub for security group findings.
Answer:
Explanation:
Explanation:
1. Create a custom action that uses the Lambda function in Security Hub.
2. Define a rule in Amazon EventBridge.
3. Select the custom action in Security Hub for EC2 host findings.
A custom action in Security Hub is first created to represent the remediation trigger. An EventBridge rule is then defined to listen for that specific custom action event and invoke the Lambda function. Finally, the custom action is manually executed on relevant EC2 findings in Security Hub to trigger the quarantine process.
NEW QUESTION # 185
A security engineer for a company wants to maintain all IAM users and roles according to the principle of least privilege. The security engineer plans to audit the IAM permissions once every
365 days. The security engineer must view the permissions that each IAM identity used in the last
365 days and must remove any unused permissions.
Which solution will meet these requirements?
Answer: A
Explanation:
IAM Access Analyzer is the correct service for least-privilege review because it can analyze unused access and last accessed information for IAM identities. AWS documentation states that unused access analyzers can generate findings for access that has not been used within a configured period, with a selectable range up to 365 days. This directly matches the annual audit requirement. CloudTrail logs contain raw activity data, but manually reviewing 365 days of events for each identity is high effort and error-prone. AWS Config tracks configuration changes, not effective permission usage. Trusted Advisor can identify some security risks, but it does not provide the role-level and user-level last accessed analysis needed to remove unused permissions systematically.
NEW QUESTION # 186
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