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| Certification Vendor: | Amazon Web Services (AWS) |
|---|---|
| Exam Name: | AWS Certified Security - Specialty (SCS-C03) |
| Exam Number: | SCS-C03 |
| Exam Format: | Multiple response, Multiple choice |
| Passing Score: | 750 (scaled score out of 1000) |
| Available Languages: | English, Korean, Simplified Chinese, Japanese |
| Certificate Validity Period: | 3 years |
| Related Certifications: | AWS Certified Solutions Architect - Professional AWS Certified Solutions Architect - Associate AWS Certified SysOps Administrator - Associate AWS Certified Advanced Networking - Specialty AWS Certified DevOps Engineer - Professional |
| Real Exam Qty: | 65 (multiple choice and multiple response) |
| Exam Duration: | 170 minutes |
| Exam Price: | $300 USD |
| Recommended Training: | AWS Skill Builder - Security Learning Path AWS Certified Security - Specialty Exam Prep |
| Exam Registration: | AWS Certification Portal AWS Certification Official Registration |
| Sample Questions: | Amazon SCS-C03 Sample Questions |
| Exam Way: | Online proctored or testing center (onsite) |
| Pre Condition: | No mandatory prerequisite, but recommended experience: 5+ years in IT security and 2+ years securing AWS workloads |
| Official Syllabus URL: | https://aws.amazon.com/certification/certified-security-specialty/ |
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NEW QUESTION # 63
A security engineer needs to protect a public web application that runs in a VPC. The VPC hosts the origin for an Amazon CloudFront distribution. The application has experienced multiple layer 7 DDoS attacks. An AWS WAF web ACL is associated with the CloudFront distribution. The web ACL contains one AWS managed rule to protect against known IP addresses that have bad reputations.
The security engineer must configure an automated solution that detects and mitigates layer 7 DDoS attacks in real time with no manual effort.
Which solution will meet these requirements?
Answer: A
Explanation:
The required solution is to use AWS WAF together with AWS Shield Advanced automatic application layer DDoS mitigation for the CloudFront distribution. Shield Advanced can automatically create and manage custom AWS WAF mitigations in real time when it detects layer
7 attacks, providing the automated response with no manual effort that the question requires.
AWS documentation also notes that this capability works with a web ACL on CloudFront and relies on the Shield-managed rule group and rate-based protection in AWS WAF.
NEW QUESTION # 64
A company needs to detect unauthenticated access to its Amazon Elastic Kubernetes Service (Amazon EKS) clusters. The solution must require no additional configuration of the existing EKS deployment. Which solution will meet these requirements with the LEAST operational effort?
Answer: D
Explanation:
Amazon GuardDuty provides managed threat detection and supports EKS protection features that analyze Kubernetes audit logs to detect suspicious activity, including unauthorized or unauthenticated access attempts. AWS Certified Security - Specialty documentation recommends GuardDuty for low-overhead detection because it is fully managed and does not require deploying agents or modifying application code. EKS Audit Log Monitoring is designed to consume and analyze relevant control plane audit events to identify anomalous or unauthorized actions against the cluster. Compared to third-party add-ons, GuardDuty reduces operational burden and remains fully within AWS managed services. Security Hub aggregates findings from services like GuardDuty but does not itself perform the detection. CloudWatch Container Insights focuses on performance and operational metrics, not authentication security detections.
Therefore, enabling GuardDuty with EKS Audit Log Monitoring provides the required detection with the least operational effort and without requiring additional configuration to the existing EKS workload beyond enabling the feature.
NEW QUESTION # 65
A company needs to develop a code-signing application that will use a certificate authority (CA) to sign a code-signing certificate. The solution must use an AWS KMS asymmetric key. The solution needs to collect and store immutable evidence about the creation, origin, and use of the KMS key for compliance purposes.
This information must be made available to internal auditors.
Which solution meets these requirements?
Answer: C
Explanation:
Comprehensive and Detailed 100to 150 words of Explanation From AWS Certified Security - Specialty topics:
Compliance evidence must be authoritative, tamper-resistant, and tied to AWS KMS API activity. CloudTrail records AWS KMS API calls, including CreateKey and later usage events. Enabling log file validation gives auditors a way to detect whether CloudTrail log files were modified or deleted after delivery. Storing the CloudTrail logs in an S3 bucket with Object Lock adds WORM-style immutability, which is much stronger than application logs, DynamoDB records, or dashboard metrics. After the key is created, filtering on the KMS key ARN captures ongoing key usage evidence. CloudWatch Logs and DynamoDB can store data, but they do not provide the same native CloudTrail integrity validation and immutable S3 retention model.
NEW QUESTION # 66
A security engineer is implementing a logging solution for a company's AWS environment. The security engineer has configured an AWS CloudTrail trail in the company's AWS account. The logs are stored in an Amazon S3 bucket for a third-party service provider to monitor. The service provider has a designated IAM role to access the S3 bucket.
The company requires all logs to be encrypted at rest with a customer managed key. The security engineer uses AWS Key Management Service (AWS KMS) to create the customer managed key and key policy. The security engineer also configures CloudTrail to use the key to encrypt the trail.
When the security engineer implements this configuration, the service provider no longer can read the logs.
What should the security engineer do to allow the service provider to read the logs?
Answer: C
Explanation:
When using a customer-managed AWS KMS key to encrypt CloudTrail logs, any role or principal that needs to read (decrypt) the logs must have permission to use the kms:Decrypt action on the key. By adding a statement to the key policy that grants kms:Decrypt access to the service provider's IAM role, the security engineer can ensure that the service provider has the necessary permissions to decrypt and read the encrypted logs in the S3 bucket.
NEW QUESTION # 67
A company finds that one of its Amazon EC2 instances suddenly has a high CPU usage. The company does not know whether the EC2 instance is compromised or whether the operating system is performing background cleanup.
Which combination of steps should a security engineer take before investigating the issue? (Select THREE.)
Answer: A,E,F
Explanation:
Before beginning an investigation, incident response best practice is topreserve evidence,prevent accidental loss of the asset, andclearly mark and control the potentially affected resource. Enablingtermination protection (Option B) helps ensure the instance is not accidentally terminated during triage, which would destroy volatile evidence and complicate forensics and recovery.
TakingEBS snapshotsof all attached data volumes (Option C) preserves a point-in-time copy of disk evidence for later forensic analysis, malware scanning, or offline investigation. Snapshots allow responders to create forensic volumes or AMIs in an isolated environment without repeatedly touching the potentially compromised instance.
Capturinginstance metadataand tagging the instance asunder quarantine(Option E) supports both investigation and operational control. Metadata capture (instance ID, IAM role, network interfaces, security groups, user- data, tags, recent changes) provides context for responders. Quarantine tagging enables automated workflows (for example, incident runbooks that isolate the instance, restrict IAM, or move it to a quarantine security group) and signals to other teams/tools that the instance is under investigation.
Option A is the opposite of what you want. Option D destroys evidence. Option F is not an appropriate
"before investigation" step; altering metadata risks losing evidence and is not the primary containment approach.
NEW QUESTION # 68
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