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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Identity and Access Management | 16% | - Federation and access control
|
| Topic 2: Infrastructure Security | 20% | - Compute security
|
| Topic 3: Logging and Monitoring | 18% | - Monitoring and alerting
|
| Topic 4: Data Protection | 18% | - Data security services
|
| Topic 5: Management, Governance and Compliance | 14% | - Governance frameworks
|
| Topic 6: Threat Detection and Incident Response | 14% | - Detection mechanisms
|
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NEW QUESTION # 79
A company needs to build a code-signing solution using an AWS KMS asymmetric key and must store immutable evidence of key creation and usage for compliance and audit purposes.
Which solution meets these requirements?
Answer: C
Explanation:
AWS CloudTrail provides authoritative records of KMS key creation, origin, and usage. Enabling log file validation ensures tamper detection. S3 Object Lock in compliance mode enforces immutability, which is a core audit requirement cited in AWS Certified Security - Specialty materials.
CloudWatch and DynamoDB do not provide immutable storage guarantees suitable for compliance evidence.
Referenced AWS Specialty Documents:
AWS Certified Security - Specialty Official Study Guide
AWS CloudTrail Log File Validation
Amazon S3 Object Lock
NEW QUESTION # 80
A company runs an application on a fleet of Amazon EC2 instances. The application is accessible to users around the world. The company associates an AWS WAF web ACL with an Application Load Balancer (ALB) that routes traffic to the EC2 instances.
A security engineer is investigating a sudden increase in traffic to the application. The security engineer discovers a significant amount of potentially malicious requests coming from hundreds of IP addresses in two countries. The security engineer wants to quickly limit the potentially malicious requests. The security engineer does not want to prevent legitimate users from accessing the application.
Which solution will meet these requirements?
Answer: B
Explanation:
A rate-based rule in AWS WAF is designed to quickly mitigate spikes and potential layer 7 floods bytracking request rates per originating IPand temporarily blocking (or counting/challenging, depending on configuration) IPs that exceed a defined threshold within a 5-minute rolling window.
In this scenario, the malicious traffic is distributed acrosshundreds of IPsin two countries, and the application still needs to remain available globally for legitimate users. A rate-based rule provides fast, targeted throttling that reduces abusive request patterns without permanently blocking entire geographies. This aligns with "quickly limit" while minimizing collateral impact.
NEW QUESTION # 81
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: B
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 # 82
A company is using AWS CloudTrail and Amazon CloudWatch to monitor resources in an AWS account. The company's developers have been using an IAM role in the account for the last 3 months.
A security engineer needs to refine the customer managed IAM policy attached to the role to ensure that the role provides least privilege access.
Which solution will meet this requirement with the LEAST effort?
Answer: C
Explanation:
AWS IAM Access Analyzer policy generation is specifically designed to help security engineers generate least-privilege IAM policies based on actual usage recorded in AWS CloudTrail.
According to the AWS Certified Security - Specialty documentation, policy generation analyzes historical CloudTrail data to identify the exact API actions and resources that a role has accessed over a specified time period.
Because the role has been actively used for three months, there is sufficient CloudTrail data for IAM Access Analyzer to generate a refined customer managed policy automatically. This significantly reduces manual effort and eliminates the need to analyze logs or infer permissions.
The generated policy can be reviewed and attached directly to the role, ensuring least privilege access with minimal engineering effort.
Option B only validates existing policies for security warnings and does not reduce permissions.
Option C requires manual analysis of CloudWatch logs, which is time-consuming and error-prone.
Option D does not analyze real usage and cannot generate role-specific least privilege policies.
AWS documentation explicitly recommends IAM Access Analyzer policy generation as the fastest and most accurate method to refine IAM permissions based on observed behavior.
NEW QUESTION # 83
A company manages multiple AWS accounts through an organization in AWS Organizations. The company enables all features in the organization.
A security team must implement a solution to centrally manage VPC security groups across the accounts. The company uses an existing reference security group with the required configuration. The solution must detect if security group rules have been modified to deviate from the reference security group. The solution must automatically restore any noncompliant security groups to match the reference security group.
The security team needs to select a solution that does not require custom development or scripting.
Which solution will meet these requirements?
Answer: D
Explanation:
Comprehensive and Detailed 100to 150 words of Explanation From AWS Certified Security - Specialty topics:
AWS Firewall Manager is the correct no-code centralized service for managing security groups across AWS Organizations. Firewall Manager security group policies can apply centrally controlled security group policies, audit rules, identify noncompliant security groups, and remediate deviations. AWS documentation states that Firewall Manager continuously maintains policies and applies them to accounts and resources as they are added or updated across the organization. It also supports common security group policies that replicate primary security groups and keep replicas synchronized with the primary. Systems Manager Automation or custom AWS Config remediation would require custom logic. CloudFormation StackSets can deploy initial security groups, but it does not continuously detect and automatically restore out-of-band rule changes in the required governance model.
NEW QUESTION # 84
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