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| Section | Weight | Objectives |
|---|---|---|
| Infrastructure Security | 20% | - Network security
|
| Management, Governance and Compliance | 14% | - Compliance and auditing
|
| Identity and Access Management | 16% | - Federation and access control
|
| Data Protection | 18% | - Data security services
|
| Threat Detection and Incident Response | 14% | - Incident response procedures
|
| Logging and Monitoring | 18% | - Audit logging
|
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NEW QUESTION # 182
A company needs to identify the root cause of security findings and investigate IAM roles involved in those findings. The company has enabled VPC Flow Logs, Amazon GuardDuty, and AWS CloudTrail. Which solution will meet these requirements?
Answer: A
Explanation:
Amazon Detective is specifically designed to help security teams investigate and visualize the root cause of security findings. According to AWS Certified Security - Specialty documentation, Detective automatically aggregates and correlates data from GuardDuty, CloudTrail, and VPC Flow Logs to provide interactive visualizations and timelines.
Detective enables investigators to pivot from GuardDuty findings to IAM roles, API calls, network traffic, and resource behavior. This makes it the most efficient tool for understanding how IAM roles were used during suspicious activity.
Amazon Inspector focuses on vulnerability assessment, not behavioral investigation. Security Hub aggregates findings but does not provide deep investigation graphs. Manual analysis with Athena requires significantly more effort.
AWS guidance explicitly recommends Amazon Detective for root cause analysis and visualization of security incidents.
NEW QUESTION # 183
A company has several Amazon S3 buckets that do not enforce encryption in transit. A security engineer must implement a solution that enforces encryption in transit for all the company's existing and future S3 buckets.
Which solution will meet these requirements?
Answer: B
Explanation:
To enforce encryption in transit for Amazon S3, AWS best practice is to require HTTPS (TLS) by using a bucket policy condition that denies any request where aws:SecureTransport is false. The requirement includes both existing buckets and future buckets, so the control must continuously evaluate configuration drift and automatically remediate. AWS Config is the service intended for continuous configuration compliance monitoring across resources, and AWS Config managed rules provide standardized checks with low operational overhead. The s3-bucket-ssl-requests-only managed rule evaluates whether S3 buckets enforce SSL-only requests, aligning directly with enforcing encryption in transit. Setting the trigger type to Hybrid ensures evaluation both on configuration changes and periodically. Automatic remediation with an AWS Systems Manager Automation runbook allows the organization to apply or correct the bucket policy consistently at scale without manual work. This approach also supports governance by maintaining a measurable compliance status while actively fixing noncompliance. Option A is not the best fit because a
"proactive" custom policy rule does not by itself remediate existing buckets and "block resource creation" is not how AWS Config enforces controls. Option C is incorrect because Amazon Inspector is a vulnerability management service and does not govern S3 bucket transport policies. Option D is inefficient and indirect because CloudTrail data events are not a compliance engine and would require custom processing.
Referenced AWS Specialty Documents:
AWS Certified Security - Specialty Official Study Guide
AWS Config Managed Rules for S3 Compliance
Amazon S3 Security Best Practices for SSL-only Access
NEW QUESTION # 184
A security engineer must investigate an Amazon GuardDuty finding. The finding indicates potential cryptocurrency mining activity on an Amazon EC2 instance. The security engineer must validate the finding and assess the impact.
Which data sources should the security engineer analyze to meet these requirements?
Answer: C
Explanation:
Cryptocurrency mining validation requires evidence of actual mining behavior, not only metadata about the finding. Process details show whether mining binaries or suspicious processes are running on the instance. DNS analysis can reveal lookups to known mining pools or suspicious domains. VPC Flow Logs help confirm outbound connections, destinations, ports, and traffic volume from the instance. GuardDuty uses foundational data sources such as DNS logs, VPC Flow Logs, and CloudTrail events to detect suspicious activity, so those same sources are appropriate for validating and scoping the finding. CPU metrics alone are useful context but not enough. Counting findings or checking severity does not prove impact. Session history and Route
53 records do not directly validate mining behavior.
NEW QUESTION # 185
A healthcare company stores more than 1 million patient records in an Amazon S3 bucket. The patient records include personally identifiable information (PII). The S3 bucket contains hundreds of terabytes of data.
A security engineer receives an alert that was triggered by an Amazon GuardDuty Exfiltration:S3
/AnomalousBehavior finding. The security engineer confirms that an attacker is using temporary credentials that were obtained from a compromised Amazon EC2 instance that has s3:GetObject permissions for the S3 bucket. The attacker has begun downloading the contents of the bucket. The security engineer contacts a development team. The development team will require 4 hours to implement and deploy a fix.
The security engineer must take immediate action to prevent the attacker from downloading more data from the S3 bucket.
Which solution will meet this requirement?
Answer: C
Explanation:
Amazon GuardDuty Exfiltration:S3/AnomalousBehavior findings indicate that S3 data access patterns are consistent with data exfiltration. In this scenario, the attacker is usingtemporary credentials obtained from an EC2 instance profile, which are issued by AWS Security Token Service (STS).
According to AWS Certified Security - Specialty documentation, thefastest and most targeted remediation is to revoke the temporary session credentials associated with the compromised instance profile. This can be accomplished by removing or modifying the IAM role permissions, detaching the instance profile, or stopping the instance, which immediately invalidates the temporary credentials and prevents further S3 access.
Option B may limit outbound traffic but does not invalidate already issued credentials. Option C is a detection and classification service and does not prevent active exfiltration. Option D would block all access to the bucket, including legitimate access, and is considered overly disruptive for incident containment.
AWS incident response best practices emphasizecredential revocation as the first containment stepwhen compromise of temporary credentials is confirmed.
* AWS Certified Security - Specialty Official Study Guide
* Amazon GuardDuty User Guide - S3 Protection
* AWS STS and IAM Role Security Documentation
* AWS Incident Response Best Practices
NEW QUESTION # 186
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: B
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 # 187
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