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Amazon SCS-C03 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Data Protection	18%	- Data security services 1. Secrets Manager and Parameter Store 2. Amazon S3 security controls - Encryption and key management 1. Encryption at rest and in transit 2. AWS KMS key management
Topic 2: Management, Governance and Compliance	14%	- Governance frameworks 1. Multi-account security strategy 2. AWS Organizations and SCPs - Compliance and auditing 1. AWS Artifact compliance reports 2. Security best practices alignment (CIS, NIST)
Topic 3: Infrastructure Security	20%	- Network security 1. VPC design and segmentation 2. Security groups and NACLs - Compute security 1. Container security (ECS/EKS basics) 2. EC2 instance hardening
Topic 4: Threat Detection and Incident Response	14%	- Incident response procedures 1. Identify and investigate security incidents in AWS environments 2. Automate response using AWS services (Lambda, CloudWatch, EventBridge) - Detection mechanisms 1. Amazon GuardDuty threat detection 2. AWS Security Hub findings aggregation
Topic 5: Identity and Access Management	16%	- Federation and access control 1. IAM Identity Center (SSO) 2. Federated identity with SAML/OIDC - AWS IAM fundamentals 1. Least privilege access design 2. Users, groups, roles, and policies
Topic 6: Logging and Monitoring	18%	- Audit logging 1. AWS Config configuration tracking 2. AWS CloudTrail logging and analysis - Monitoring and alerting 1. Centralized security monitoring strategies 2. Amazon CloudWatch metrics and alarms

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Amazon AWS Certified Security - Specialty Sample Questions (Q191-Q196):

NEW QUESTION # 191
A company is operating an open-source software platform that is internet facing. The legacy software platform no longer receives security updates. The software platform operates using Amazon Route 53 weighted load balancing to send traffic to two Amazon EC2 instances that connect to an Amazon RDS cluster. A recent report suggests this software platform is vulnerable to SQL injection attacks, with samples of attacks provided. The company's security engineer must secure this system against SQL injection attacks within 24 hours. The solution must involve the least amount of effort and maintain normal operations during implementation. What should the security engineer do to meet these requirements?

A. Create an Application Load Balancer with the existing EC2 instances as a target group. Create an AWS WAF web ACL containing rules that protect the application from this attack, then apply it to the ALB. Test to ensure the vulnerability has been mitigated, then redirect the Route 53 records to point to the ALB. Update security groups on the EC2 instances to prevent direct access from the internet.
B. Update the security group that is attached to the EC2 instances, removing access from the internet to the TCP port used by the SQL database. Create an AWS WAF web ACL containing rules that protect the application from this attack, then apply it to the EC2 instances.
C. Create an Amazon CloudFront distribution specifying one EC2 instance as an origin. Create an AWS WAF web ACL containing rules that protect the application from this attack, then apply it to the distribution. Test to ensure the vulnerability has been mitigated, then redirect the Route 53 records to point to CloudFront.
D. Obtain the latest source code for the platform and make the necessary updates. Test the updated code to ensure that the vulnerability has been mitigated, then deploy the patched version of the platform to the EC2 instances.

Answer: A

Explanation:
AWS WAF provides managed and custom rules that can immediately mitigate common web exploits such as SQL injection without modifying application code. According to AWS Certified Security - Specialty documentation, placing AWS WAF in front of an Application Load Balancer is a recommended rapid-response control for legacy applications with known vulnerabilities.
Creating an ALB in front of the existing EC2 instances allows seamless traffic migration. AWS WAF SQL injection rules can be deployed and tested without downtime. Updating Route 53 to point to the ALB preserves normal operations. Restricting EC2 security groups afterward prevents bypassing the WAF.
Option B introduces CloudFront changes and single-origin testing, increasing complexity. Option C cannot be completed within 24 hours and risks downtime. Option D is invalid because AWS WAF cannot be attached directly to EC2 instances.

NEW QUESTION # 192
A company has a compliance requirement to encrypt all data in transit. The company recently discovered an Amazon Aurora cluster that does not meet this requirement.
How can the company enforce encryption for all connections to the Aurora cluster?

A. Use AWS Directory Service for Microsoft Active Directory to create a user directory and to enforce Kerberos authentication with Aurora.
B. Configure the Aurora cluster to use AWS Certificate Manager (ACM) to provide encryption certificates.
C. Create an Amazon RDS proxy. Connect the proxy to the Aurora cluster to enable encryption.
D. In the Aurora cluster configuration, set therequire_secure_transportDB cluster parameter toON.

Answer: D

Explanation:
To enforce encryption in transit to Aurora, you must require clients to useTLS/SSLwhen connecting to the database. Aurora (depending on engine flavor) supports a parameter that enforces secure transport by rejecting non-TLS connections. Setting the DB (cluster/instance) parameter such asrequire_secure_transporttoONforces clients to negotiate SSL/TLS; otherwise the server refuses the connection, ensuring all data in transit is encrypted. This directly enforces the compliance requirement at the database endpoint itself, independent of client behavior.

NEW QUESTION # 193
A security engineer for a company needs to design an incident response plan that addresses compromised IAM user account credentials. The company uses an organization in AWS Organizations and AWS IAM Identity Center to manage user access. The company uses a delegated administrator account to implement AWS Security Hub. The delegated administrator account contains an organizational trail in AWS CloudTrail that logs all events to an Amazon S3 bucket. The company has also configured an organizational event data store that captures all events from the trail.
The incident response plan must provide steps that the security engineer can take to immediately disable any compromised IAM user when the security engineer receives a notification of a security incident. The plan must prevent the IAM user from being used in any AWS account. The plan must also collect all AWS actions that the compromised IAM user performed across all accounts in the previous 7 days.
Which solution will meet these requirements?

A. Remove all IAM policies that are attached to the IAM user in the organization management account.
Use AWS Security Hub to query the CloudTrail logs for actions that the IAM user performed in the previous 7 days.
B. Disable the IAM user's access in IAM Identity Center. Use AWS CloudTrail to query the organizational event data store for actions that the IAM user performed in the previous 7 days.
C. Remove any permission sets that are assigned to the IAM user in IAM Identity Center. Use Amazon CloudWatch Logs Insights to query the CloudTrail logs in the S3 bucket for actions that the IAM user performed in the previous 7 days.
D. Disable the compromised IAM user in the organization management account. Use Amazon Athena to query the organizational CloudTrail logs in the S3 bucket for actions that the IAM user performed in the previous 7 days.

Answer: B

Explanation:
When AWS IAM Identity Center is used to manage user access across an AWS Organization, Identity Center is the authoritative control plane for enabling and disabling user access. According to the AWS Certified Security - Specialty Official Study Guide, disabling a user in IAM Identity Center immediately prevents that user from accessing any AWS account or role that is assigned through permission sets, satisfying the requirement to stop access organization-wide.
Disabling an IAM user in a single account or removing attached policies (Options A and B) does not prevent access through IAM Identity Center-managed roles in other accounts. Option C is incomplete because removing permission sets does not immediately disable authentication and still requires querying logs from an unsupported source.
For investigation and evidence collection, AWS CloudTrail organizational event data stores provide centralized, queryable access to all management and data events across all accounts in the organization.
CloudTrail Lake enables security engineers to run SQL-based queries directly against event data without exporting logs to other services. This allows rapid collection of all actions that the compromised user performed during the last 7 days.
AWS documentation explicitly identifies the combination of IAM Identity Center for access revocation and CloudTrail Lake for organization-wide investigation as a best practice for identity-related incident response.
AWS Certified Security - Specialty Official Study Guide
AWS IAM Identity Center Documentation
AWS CloudTrail Lake User Guide
AWS Incident Response Best Practices

NEW QUESTION # 194
A company runs a web application on a fleet of Amazon EC2 instances in an Auto Scaling group. Amazon GuardDuty and AWS Security Hub are enabled. The security engineer needs an automated response to anomalous traffic that follows AWS best practices and minimizes application disruption.
Which solution will meet these requirements?

A. Use Security Hub to update the subnet network ACL to block traffic.
B. Use EventBridge to disable the instance profile access keys.
C. Use EventBridge to invoke a Lambda function that removes the affected instance from the Auto Scaling group and isolates it with a restricted security group.
D. Send GuardDuty findings to Amazon SNS for email notification.

Answer: C

Explanation:
AWS incident response best practices emphasize isolating compromised resources rather than immediately terminating them. According to AWS Certified Security - Specialty documentation, removing an instance from an Auto Scaling group prevents replacement loops, while applying a restrictive security group isolates the instance for forensic analysis.
Using Amazon EventBridge to trigger an AWS Lambda function enables automated, consistent responses to GuardDuty findings. This approach minimizes disruption to the application because healthy instances continue serving traffic while the affected instance is isolated.
Disabling credentials or modifying network ACLs can have broader impact on unrelated workloads. SNS notifications alone do not provide response automation.
AWS recommends isolate-and-investigate patterns for EC2 incident response.
Referenced AWS Specialty Documents:
AWS Certified Security - Specialty Official Study Guide
Amazon GuardDuty Automated Responses
AWS Incident Response Playbooks

NEW QUESTION # 195
A security engineer needs to build a solution to turn AWS CloudTrail back on in multiple AWS Regions in case it is ever turned off.
What is the MOST efficient way to implement this solution?

A. Create an Amazon CloudWatch alarm with a cloudtrail.amazonaws.com event source and a StopLogging event name to invoke an AWS Lambda function to call the StartLogging API.
B. Use AWS Config with a managed rule to initiate the AWS-EnableCloudTrail remediation.
C. Monitor AWS Trusted Advisor to ensure CloudTrail logging is enabled.
D. Create an Amazon EventBridge event with a cloudtrail.amazonaws.com event source and a StartLogging event name to invoke an AWS Lambda function to call the StartLogging API.

Answer: B

Explanation:
The most efficient approach is to useAWS Configbecause Config is designed for continuous compliance evaluation and can automatically triggermanaged remediationwhen a resource drifts from the desired state. A managed Config rule that detects when CloudTrail is not logging, combined with theAWS- EnableCloudTrailremediation action, provides an automated way to re-enable CloudTrail without building and maintaining custom event processing code. This is especially valuable in multi-Region environments because Config can evaluate configurations across Regions and enforce the intended posture consistently.
Option B is illogical: triggering on StartLogging does not help when CloudTrail is turned off. Option C is not as operationally efficient because CloudWatch alarms are not the standard mechanism for reacting to CloudTrail API events; EventBridge is the proper event bus for API call events, but you would still be writing and maintaining Lambda logic and multi-Region plumbing. Option D is manual and delayed, not automated remediation.
Therefore, AWS Config with a managed rule and the AWS-provided remediation to enable CloudTrail is the most maintainable and efficient solution.

NEW QUESTION # 196
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