Amazon SCS-C03 Practice Test - Latest Preparation Material [2026]

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Amazon SCS-C03 Exam Syllabus Topics:

Section	Weight	Objectives
Identity and Access Management	20%	- Design and implement secure access strategies 1. Use IAM policies, roles, and permissions boundaries 2. Implement least privilege access models 3. Manage identities and permissions at scale - Monitor and audit access activity 1. Detect and remediate excessive permissions 2. Review access logs and reports - Secure authentication and authorization 1. Integrate with external identity providers 2. Manage federated access 3. Implement multi-factor authentication
Data Protection	18%	- Secure data access and sharing 1. Implement secure data transfer and sharing mechanisms 2. Control access to sensitive data - Implement encryption and key management 1. Encrypt data across all storage and processing layers 2. Manage encryption keys using AWS KMS and CloudHSM - Design and implement data protection strategies 1. Define data retention and disposal policies 2. Classify and categorize data
Detection	16%	- Design and implement threat detection mechanisms 1. Detect anomalies and potential security incidents 2. Configure and manage log collection and analysis 3. Use AWS security services for monitoring and alerting - Automate detection and response workflows 1. Implement event-driven security automation 2. Integrate security tools and services
Incident Response	14%	- Implement post-incident activities 1. Update security controls and processes 2. Document lessons learned - Investigate and remediate security incidents 1. Conduct forensic analysis on AWS resources 2. Contain, eradicate, and recover from incidents - Develop incident response plans and procedures 1. Establish communication and escalation processes 2. Define roles and responsibilities
Infrastructure Security	18%	- Protect workloads and applications 1. Implement security groups and firewalls 2. Secure containerized and serverless environments - Secure compute and storage resources 1. Harden operating systems and applications 2. Manage access to storage services 3. Encrypt data at rest and in transit - Design and implement secure network architecture 1. Implement network access control and segmentation 2. Secure VPC design and configuration 3. Protect network traffic and communications
Security Foundations and Governance	14%	- Establish security frameworks and compliance 1. Align with industry standards and regulations 2. Implement security policies and standards - Secure development and operations 1. Integrate security into CI/CD pipelines 2. Implement security as code - Manage security risk and compliance 1. Perform risk assessments and audits 2. Implement compliance controls and reporting

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Amazon AWS Certified Security - Specialty Sample Questions (Q98-Q103):

NEW QUESTION # 98
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?

A. Remove either the AWS managed policy or the customer managed policy from the permission set.
Create a second permission set that includes the removed policy. Apply the permission sets separately to the user.
B. Create the customer managed policy in every account where the permission set is assigned. Give the customer managed policy the same name and same permissions in each account.
C. Do not add the new permission set to the user. Instead, edit the user's existing permission set to include the AWS managed policy and the customer managed policy.
D. Evaluate the logic of the AWS managed policy and the customer managed policy. Resolve any policy conflicts in the permission set before deployment.

Answer: B

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 # 99
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. Send GuardDuty findings to Amazon SNS for email notification.
B. 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.
C. Use Security Hub to update the subnet network ACL to block traffic.
D. Use EventBridge to disable the instance profile access keys.

Answer: B

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.

NEW QUESTION # 100
A company is developing a new serverless application that uses AWS Lambda functions. The company uses AWS CloudFormation to deploy the Lambda functions.
The company's developers are trying to debug a Lambda function that is deployed. The developers cannot debug the Lambda function because the Lambda function is not logging its output to Amazon CloudWatch Logs.
Which combination of steps should a security engineer take to resolve this issue? (Choose two.)

A. Check the Lambda function configuration in the CloudFormation template. Ensure that the Lambda function has an AWS X-Ray tracing configuration that is set to Active mode or PassThrough mode.
B. Check the role that the developers use to debug the Lambda function. Ensure that the role has a trust policy that allows the sts:AssumeRole action by the service principal lambda.amazonaws.com.
C. Check the role that is defined in the CloudFormation template and is passed to the Lambda function. Ensure that the role has a trust policy that allows the sts:AssumeRole action by the service principal lambda amazonaws.com.
D. Check the execution role that is configured in the CloudFormation template for the Lambda function. Ensure that the execution role has the necessary permissions to write to CloudWatch Logs.
E. Check the resource policy that is configured in the CloudFormation template for the Lambda function. Ensure that the resource policy has the necessary permissions to write to CloudWatch Logs.

Answer: C,D

Explanation:
For a Lambda function to run, the execution role assigned to it must have a trust policy that allows AWS Lambda (lambda.amazonaws.com) to assume the role. This ensures that the Lambda service can use the permissions associated with that role. The execution role also needs explicit permissions to write logs to Amazon CloudWatch Logs. Without these permissions, the Lambda function cannot create or update log streams in CloudWatch, which is necessary for logging output.

NEW QUESTION # 101
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?

A. The version of the Lambda function that was invoked was not current.
B. The execution role for the Lambda function did not grant permissions to write log data to CloudWatch Logs.
C. The execution role for the Lambda function did not grant permissions to write to the Amazon S3 bucket where CloudWatch Logs stores the logs.
D. The Lambda function was invoked by using Amazon API Gateway, so the logs are not stored in CloudWatch Logs.

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 # 102
A company's security team needs to receive a notification whenever an AWS access key has not been rotated in 90 or more days. A security engineer must develop a solution that provides these notifications automatically.
Which solution will meet these requirements with the LEAST amount of effort?

A. Create an AWS Lambda function that queries the IAM API to list all the users. Iterate through the users by using the ListAccessKeys operation. Verify that the value in the CreateDate field is not at least 90 days old. Send an SNS notification to the security team if the value is at least 90 days old. Create an EventBridge rule to schedule the Lambda function to run each day.
B. Create a script to download the IAM credentials report on a periodic basis. Load the script into an AWS Lambda function that will run on a schedule through Amazon EventBridge. Configure the Lambda script to load the report into memory and to filter the report for records in which the key was last rotated at least 90 days ago. If any records are detected, send an Amazon SNS notification to the security team.
C. Create a script to export a .csv file from the AWS Trusted Advisor check for IAM access key rotation.
Load the script into an AWS Lambda function that will upload the .csv file to an Amazon S3 bucket.
Create an Amazon Athena table query that runs when the .csv file is uploaded to the S3 bucket. Publish the results for any keys older than 90 days by using an invocation of an Amazon SNS notification to the security team.
D. Deploy an AWS Config managed rule to run on a periodic basis of 24 hours. Select the access-keys- rotated managed rule, and set the maxAccessKeyAge parameter to 90 days. Create an Amazon EventBridge rule with an event pattern that matches the compliance type of NON_COMPLIANT from AWS Config for the managed rule. Configure EventBridge to send an Amazon SNS notification to the security team.

Answer: D

Explanation:
Comprehensive and Detailed 100to 150 words of Explanation From AWS Certified Security - Specialty topics:
The AWS Config managed rule access-keys-rotated is purpose-built for this requirement. It checks whether active IAM access keys have been rotated within the configured maxAccessKeyAge, with 90 days as the default value. When the rule evaluates an IAM user as NON_COMPLIANT, EventBridge can match the AWS Config compliance change event and publish a notification to Amazon SNS. This uses managed services and avoids custom scripts, credential report parsing, Athena tables, or Lambda code. Trusted Advisor and custom IAM API polling can work, but they introduce more operational effort and more custom logic.
The least-effort and most direct solution is AWS Config managed rule plus EventBridge plus SNS.

NEW QUESTION # 103
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