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| Section | Weight | Objectives |
|---|---|---|
| Incident Response | 12% | - Given an AWS security incident, outline the investigation and mitigation steps - Determine root cause and recurrence prevention - Identify, collect, and preserve forensic evidence |
| Logging and Monitoring | 20% | - Design and implement monitoring and alerting solutions - Design and implement log analysis and management - Troubleshoot security monitoring and alerting |
| Data Protection | 22% | - Design and implement encryption solutions for data at rest and in transit - Amazon S3 security best practices - Database encryption and access control - AWS Key Management Service (KMS) and customer managed keys - AWS CloudTrail and encryption key audit |
| Identity and Access Management | 20% | - Design and implement cross-account access management - Implement temporary credentials and federation - Troubleshoot IAM-based authentication and authorization issues - Design and implement identity and access management architecture |
| Infrastructure Security | 26% | - Design and implement edge security on AWS - AWS Secret Manager and AWS Systems Manager Parameter Store - Design and implement host-based security - Architect network security segmentation (VPC architecture) |
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NEW QUESTION # 203
A company that uses AWS Organizations is using AWS IAM Identity Center to administer access to AWS accounts. A security engineer is creating a custom permission set in IAM Identity Center. The company will use the permission set across multiple accounts. An AWS managed policy and a customer managed policy are attached to the permission set. The security engineer has full administrative permissions and is operating in the management account.
When the security engineer attempts to assign the permission set to an IAM Identity Center user who has access to multiple accounts, the assignment fails.
What should the security engineer do to resolve this failure?
Answer: A
Explanation:
AWS IAM Identity Center permission sets that include customer managed policies require those policies to exist in each target account. According to the AWS Certified Security - Specialty Study Guide, customer managed policies are account-scoped and are not automatically propagated across accounts by Identity Center.
When assigning a permission set across multiple accounts, Identity Center attempts to attach the referenced customer managed policy in each account. If the policy does not exist, the assignment fails. Creating the same customer managed policy with identical name and permissions in every target account resolves the issue.
Option B increases complexity. Option C does not address the root cause. Option D violates Identity Center management best practices.
AWS documentation clearly states that customer managed policies must be present in all accounts where permission sets are applied.
Referenced AWS Specialty Documents:
AWS Certified Security - Specialty Official Study Guide
AWS IAM Identity Center Permission Sets
AWS Organizations and Identity Center Policy Management
NEW QUESTION # 204
A security engineer receives a notice about suspicious activity from a Linux-based Amazon EC2 instance that uses Amazon Elastic Block Store (Amazon EBS)-based storage. The instance is making connections to known malicious addresses.
The instance is in a development account within a VPC that is in the us-east-1 Region. The VPC contains an internet gateway and has a subnet in us-east-1a and us-east-1b. Each subnet is associated with a route table that uses the internet gateway as a default route. Each subnet also uses the default network ACL. The suspicious EC2 instance runs within the us-east-1b subnet.
During an initial investigation, a security engineer discovers that the suspicious instance is the only instance that runs in the subnet.
Which response will immediately mitigate the attack and help investigate the root cause?
Answer: C
Explanation:
AWS incident response best practices emphasize immediate containment, preservation of evidence, and safe forensic investigation. According to the AWS Certified Security - Specialty Study Guide, when an EC2 instance is suspected of compromise, security teams should avoid logging in to the instance or installing additional tools, as these actions can alter evidence and increase risk.
Terminating the compromised instance after ensuring that its Amazon EBS volumes are preserved prevents further malicious activity immediately. By setting the EBS volumes to not delete on termination, all disk data is retained for forensic analysis. Launching a new, clean EC2 instance in a different subnet or Availability Zone with preinstalled diagnostic tools allows investigators to safely attach and analyze the compromised volumes without executing potentially malicious code.
Option A introduces significant risk by logging in to the compromised instance and modifying security controls during active compromise. Option B delays containment and allows continued outbound traffic during investigation steps. Option D is invalid because AWS WAF cannot be attached directly to Amazon EC2 instances and does not control outbound traffic.
AWS documentation strongly recommends isolating or terminating compromised resources and performing offline analysis using detached storage volumes. This approach ensures immediate mitigation, preserves forensic integrity, and aligns with AWS incident response frameworks.
NEW QUESTION # 205
A company has multiple accounts in the AWS Cloud. Users in the developer account need to have access to specific resources in the production account.
What is the MOST secure way to provide this access?
Answer: B
Explanation:
The most secure and AWS-recommended pattern for cross-account access is to create anIAM role in the target account (production)and allow trusted principals from the source account (developer) toassume the roleby using AWS STS. This avoids long-term credentials in the production account, supports short-lived session credentials, and enables strong controls such as MFA requirements, session duration limits, and precise least-privilege permissions attached to the role. It also centralizes ownership of production permissions in the production account, which is important for separation of duties and governance.
Option A is insecure because it requires password sharing and uses a long-lived IAM user credential, which is against AWS best practices. Option C is also poor because it relies on a long-lived IAM user in the production account and encourages credential sharing/duplication. Option B places the role in the developer account; while you can attach permissions there, access to production resources is governed by the production account.
The standard approach is a production-account role with a trust policy that names the developer account principals (or a role) as allowed to assume it. Therefore, Option D is the most secure solution.
NEW QUESTION # 206
An AWS Lambda function was misused to alter data, and a security engineer must identify who invoked the function and what output was produced. The engineer cannot find any logs created by the Lambda function in Amazon CloudWatch Logs.
Which of the following explains why the logs are not available?
Answer: B
Explanation:
AWS Lambda automatically sends function execution logs to Amazon CloudWatch Logs when logging is enabled in the function code. However, this logging capability depends on the Lambda execution role having the appropriate permissions. According to the AWS Certified Security - Specialty Study Guide, the execution role must include permissions such as logs:CreateLogGroup, logs:CreateLogStream, and logs:PutLogEvents.
If these permissions are missing, Lambda cannot create log groups or streams, and no execution logs will appear in CloudWatch Logs-even though the function was successfully invoked. This is the most common reason Lambda logs are unavailable during forensic investigations.
Option B is incorrect because Lambda logs are stored in CloudWatch Logs regardless of whether the invocation source is API Gateway, EventBridge, or another AWS service. Option C is incorrect because CloudWatch Logs does not require direct S3 permissions from the Lambda execution role. Option D is irrelevant because Lambda versions do not affect logging behavior.
AWS documentation emphasizes verifying execution role permissions as a first step when Lambda logs are missing.
Referenced AWS Specialty Documents:
AWS Certified Security - Specialty Official Study Guide
AWS Lambda Execution Roles
Amazon CloudWatch Logs Integration with Lambda
NEW QUESTION # 207
A security engineer needs to prepare Amazon EC2 instances for quarantine during a security incident. AWS Systems Manager Agent (SSM Agent) is installed, and a script exists to install and update forensic tools. Which solution will quarantine EC2 instances during a security incident?
Answer: B
Explanation:
AWS Systems Manager Run Command enables secure, remote execution of commands on EC2 instances without requiring network access or inbound ports. According to the AWS Certified Security - Specialty Study Guide, Run Command is a recommended mechanism for incident response actions such as installing forensic tools, collecting evidence, or applying quarantine controls.
By granting the SSM Agent permission to execute a predefined Run Command document, the security engineer can immediately run the quarantine script across affected instances. This approach supports automation, scalability, and auditability, all of which are critical during security incidents.
Options A, B, and C do not directly enforce quarantine or execute response actions. Tracking versions and storing scripts alone do not trigger incident response.
AWS documentation highlights Systems Manager Run Command as a core capability for automated containment and investigation.
NEW QUESTION # 208
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