AWS Certified Security - Specialty (SCS-C03) Practice Test

This certification is designed for experienced security professionals who have a minimum of five years of IT security experience designing and implementing security solutions, with at least two years of hands-on experience specifically securing AWS workloads. Typical roles include Cloud Security Engineers, Security Architects, DevSecOps Engineers, Security Operations Center (SOC) analysts, and Compliance Engineers who operate in AWS-heavy environments.

It is well-suited for professionals who are responsible for securing production AWS environments at scale, managing cross-account governance, or leading cloud security initiatives in regulated industries such as financial services, healthcare, and government. Those already holding an AWS Certified Solutions Architect – Associate or Professional credential commonly pursue this exam as the next step toward a security specialization track.

There are no formal certification prerequisites required to sit for the SCS-C03 exam. However, AWS recommends that candidates have five years of IT security experience and at least two years of practical experience securing AWS workloads before attempting the exam. Familiarity with core AWS services including IAM, VPC networking, S3, KMS, CloudTrail, CloudWatch, and Config is strongly recommended.

Many candidates benefit from first obtaining the AWS Certified Solutions Architect – Associate or Professional certification to build a solid foundation in AWS architecture before focusing on security controls. A working understanding of security concepts such as encryption algorithms, PKI, network protocols, identity federation, and compliance frameworks (e.g., NIST, PCI-DSS, HIPAA) is also expected, though these concepts are applied in the context of AWS rather than tested in isolation.

The SCS-C03 exam consists of 65 total questions, of which 50 are scored and 15 are unscored pretest questions that AWS uses to evaluate items for future exam versions. Unscored questions are not identified during the exam. The exam is 170 minutes long and costs $300 USD. It can be taken at a Pearson VUE testing center or as an online proctored exam. The exam is available in English, Japanese, Korean, Portuguese (Brazil), Simplified Chinese, and Spanish (Latin America).

Question types include multiple choice (one correct answer from four options), multiple response (two or more correct answers from five or more options), ordering (arrange three to five steps in the correct sequence), and matching (pair prompts with responses). Scores are reported on a scaled range of 100–1,000, and the minimum passing score is 750. The compensatory scoring model means no minimum score per domain is required; only the total scaled score matters.

• 1.Domain 1 – Identity and Access Management (20%): Design and implement scalable IAM strategies including role-based access, permission boundaries, service control policies (SCPs), identity federation using SAML and OIDC, and least-privilege enforcement across single and multi-account AWS environments.
• 2.Domain 2 – Infrastructure Security (18%): Secure VPC architectures using security groups, NACLs, VPC endpoints, AWS Network Firewall, and AWS WAF. Implement edge security with AWS Shield and CloudFront. Harden EC2 instances, container workloads, and serverless functions against network-based threats.
• 3.Domain 3 – Data Protection (18%): Apply data classification frameworks and implement encryption at rest and in transit using AWS KMS, AWS ACM, and AWS CloudHSM. Manage key lifecycle policies, enforce S3 bucket security, and protect data in databases, storage services, and data transfer pipelines.
• 4.Domain 4 – Detection (16%): Configure and tune AWS detection services including Amazon GuardDuty, AWS Security Hub, AWS Config, Amazon Inspector, and Amazon Macie. Build alerting pipelines using Amazon EventBridge and CloudWatch to identify and escalate security findings.
• 5.Domain 5 – Incident Response (14%): Develop and execute incident response playbooks for AWS environments. Use AWS tools to isolate compromised resources, perform forensic analysis on EC2 and Lambda, revoke credentials, and restore workloads from trusted snapshots in alignment with IR best practices.
• 6.Domain 6 – Security Foundations and Governance (14%): Implement security guardrails across AWS Organizations using SCPs and AWS Control Tower. Manage compliance posture using AWS Audit Manager and AWS Config rules. Design threat models, apply the AWS Well-Architected Framework Security Pillar, and interpret shared responsibility boundaries.

• Start with the official AWS Certified Security – Specialty exam guide at docs.aws.amazon.com, which lists all domains, task statements, and in-scope AWS services. Use it as your study checklist to ensure no area is missed.
• Complete the official AWS Skill Builder exam prep learning path at skillbuilder.aws, which includes the 'Exam Prep Official Practice Question Set' (20 questions, free) and the 'Official Pretest' (65 questions, paid) to simulate real exam conditions.
• Build hands-on experience in a live AWS environment. Specifically practice writing and evaluating IAM policies with the IAM Policy Simulator, configuring GuardDuty findings workflows, setting up AWS Config rules, and using KMS to encrypt/decrypt data across services.
• For the IAM domain (highest weight at 20%), master the differences between identity-based policies, resource-based policies, permission boundaries, session policies, and SCPs. Practice policy evaluation logic for cross-account scenarios, which frequently appear as exam questions.
• Use the AWS Well-Architected Framework's Security Pillar whitepaper and the AWS Security Best Practices whitepaper as supplementary reading to understand the architectural reasoning behind AWS security controls, which is tested in scenario-based questions.
• Take at least two full-length timed practice exams using the official AWS pretest on Skill Builder to identify weak domains. Prioritize reviewing AWS documentation for any service you cannot confidently explain in a security context.
• Review the AWS incident response guide and familiarize yourself with common attack patterns in AWS (e.g., credential exfiltration, S3 misconfiguration, EC2 metadata abuse) and the exact AWS service actions used to contain, investigate, and remediate each scenario.

The AWS Certified Security – Specialty is consistently ranked among the top highest-paying technical certifications in the United States. According to 2024 Skillsoft salary data cited by AWS, holders of this certification command average base salaries of approximately $158,000 per year, with senior roles in major tech hubs exceeding $200,000. The certification is highly relevant for roles such as Cloud Security Engineer, Security Architect, DevSecOps Engineer, and Cloud Compliance Manager at organizations that run significant workloads on AWS.

Market demand for this credential is strong and growing, with job listings requiring the certification having increased 73% in a recent one-year period per data cited on the AWS certification page. The SCS-C03's expanded coverage of AI and machine-learning workload security makes it particularly timely as enterprises accelerate adoption of generative AI services on AWS. Compared to alternatives like the CCSP or CISSP, this certification is more operationally specific to AWS and is often treated as a mandatory credential for senior cloud security roles at AWS-heavy organizations.