AWS Certified Security - Specialty (SCS-C03) Practice Exams
Original scenario-based mock tests for the ability to secure AWS workloads across detection, incident response, infrastructure security, identity and access management, data protection and governance.
AWS validates the ability to secure AWS workloads across detection, incident response, infrastructure security, identity and access management, data protection and governance. The intended audience includes security engineers, cloud security architects, security analysts, DevSecOps practitioners and AWS professionals responsible for securing cloud workloads. AWS recommends 5 or more years of IT security experience designing and implementing security solutions, plus 2 or more years of hands-on experience securing AWS workloads.
6550 scored and 15 unscored questions
170 minofficial duration
750minimum scaled passing score
3 yearsstandard certification validity
Question formats: AWS currently uses multiple-choice, multiple-response, ordering and matching questions. Unanswered questions are scored as incorrect and there is no penalty for guessing.
Prerequisites and recommended knowledge: No specific prior AWS certification is required. AWS recommends familiarity with the shared responsibility model, identity management at scale, multi-account governance, incident response, vulnerability management, firewall rules for layers 3-7, logging and monitoring, and encryption at rest and in transit.
Current guide revision: The current public guide is version 1.0, published March 26, 2026 — the first SCS-C03 guide, with no later revisions published yet.
The official guide is the source of truth and may be revised. Domain weights above total 100% of scored content.
Preparation roadmap
SCS-C03 exam preparation and study plan
Use the official blueprint to organize learning, then use ethical practice exams to identify gaps. Focus on explaining concepts and applying them to new business scenarios—not memorizing isolated answers or searching for unauthorized exam dumps.
Map the official blueprintStart with Identity and Access Management (20%), then Infrastructure Security and Data Protection (18% each) — together over half the exam.
Build detection and response fluencyPractice GuardDuty, Security Hub and Detective findings alongside incident-response runbooks.
Master encryption and identity decisionsWork through KMS key strategies, IAM policies, federation and permissions boundaries.
Use practice exams diagnosticallyReview every explanation, record weak domains and return to AWS documentation before another timed attempt.
Readiness check: A practice score is useful only when you understand why each option is right or wrong. No mock-test result guarantees an AWS exam outcome.
Try before enrolling
Six free SCS-C03 sample questions with answers
These independently written questions sample one concept from each public exam domain. They are learning examples—not copied, recalled, leaked or live AWS exam questions—and require no sign-up.
0 of 6 answers reviewed
Domain 1 - Detection
Question 1: Centralizing findings across accounts
A security team wants centralized, prioritized findings from GuardDuty, Inspector, and other AWS security services across multiple accounts. Which service best aggregates these findings into a unified view?
Amazon CloudWatch Logs alone
AWS Security Hub, aggregating findings from GuardDuty, Inspector and other integrated services
Amazon S3 Storage Lens
AWS Trusted Advisor only
Show answer and explanation
Correct answer: B. Security Hub aggregates and normalizes findings across GuardDuty, Inspector, Macie and partner sources into a single dashboard. CloudWatch Logs stores logs but does not aggregate security findings, S3 Storage Lens is for storage analytics, and Trusted Advisor covers best-practice checks rather than aggregated threat findings.
Learning focus: Security Hub finding aggregation and centralized detection.
Domain 2 - Incident Response
Question 2: Responding to compromised instance credentials
GuardDuty generates a high-severity finding indicating an EC2 instance's credentials are being used from an unusual location. What is the most appropriate immediate incident response action?
Ignore the finding until the next audit
Isolate the instance, rotate the compromised credentials, and begin forensic investigation
Delete the EC2 instance permanently without investigation
Disable GuardDuty to stop further alerts
Show answer and explanation
Correct answer: B. Standard incident response is to contain (isolate), eradicate (rotate credentials) and investigate before deciding on further remediation. Ignoring the finding leaves the environment exposed, deleting the instance destroys forensic evidence, and disabling GuardDuty removes visibility instead of responding.
Learning focus: Incident containment, credential rotation and forensic preservation.
Domain 3 - Infrastructure Security
Question 3: Protecting a public web application
A public-facing web application needs protection against common web exploits such as SQL injection and cross-site scripting, along with the ability to block traffic from specific countries. Which service should the team use?
AWS WAF with managed rule groups and geographic match conditions
Security groups alone
Amazon Macie
AWS Config
Show answer and explanation
Correct answer: A. AWS WAF managed rule groups protect against common exploits such as SQL injection and XSS, and geographic match conditions can block or allow traffic by country. Security groups filter by IP and port rather than application-layer patterns, Macie discovers sensitive data, and Config assesses resource configuration compliance.
A contractor needs temporary, least-privilege access to specific resources in a member account without creating a long-lived IAM user. Which approach best fits this requirement?
Create an IAM user with a permanent access key and share the credentials
Use an IAM role with a scoped permissions policy and short-lived credentials via AWS STS
Share the AWS account root credentials
Grant AdministratorAccess to simplify onboarding
Show answer and explanation
Correct answer: B. IAM roles assumed via AWS STS provide temporary, scoped credentials without long-lived secrets. Permanent access keys and root credential sharing violate least privilege and create standing risk, and granting AdministratorAccess violates least privilege entirely.
Learning focus: IAM roles, temporary credentials via STS and least-privilege access.
Domain 5 - Data Protection
Question 5: Controlling and auditing key usage
A compliance requirement mandates that an organization control and audit exactly which principals can use a specific encryption key, including the ability to revoke access immediately. Which approach best satisfies this?
Use only Amazon S3 default (SSE-S3) encryption
Use an AWS KMS customer managed key with a key policy and IAM permissions, and monitor key usage with AWS CloudTrail
Store encryption keys in application code
Disable encryption to simplify audits
Show answer and explanation
Correct answer: B. KMS customer managed keys give full control over key policies, grants and revocation, with CloudTrail logging every API call for auditability. SSE-S3 uses AWS-owned keys with no customer control, storing keys in code is a severe security risk, and disabling encryption fails the compliance requirement outright.
Question 6: Enforcing guardrails across many accounts
A growing company manages dozens of AWS accounts and needs to enforce consistent security guardrails, such as blocking public S3 buckets and restricting Regions, across all accounts, including new ones created in the future. Which approach best meets this need?
Manually configure each account's settings after creation
Use AWS Organizations service control policies (SCPs) to enforce preventive guardrails across the organization
Send an email policy document to account owners
Rely on individual IAM users to self-enforce best practices
Show answer and explanation
Correct answer: B. AWS Organizations SCPs apply preventive guardrails across all accounts in an organizational unit, including new accounts, without relying on manual or ad hoc processes. Manual configuration and self-enforcement do not scale or guarantee consistency, and email policies are not technically enforced.
Learning focus: AWS Organizations, service control policies and multi-account governance.
Six sample answers cannot measure full exam readiness. Use them to identify concepts that need deeper study.
Original ethical practice
How these SCS-C03 practice exams support preparation
This independent Udemy-hosted course uses original scenario questions and explanation-led review. It supplements—not replaces—the AWS exam guide, AWS documentation, Skill Builder and hands-on practice.
Detect and respond to threatsPractice GuardDuty, Security Hub, Detective and incident-response workflow decisions.
Harden AWS infrastructureWork through network security, edge protection and workload-hardening choices.
Manage identity and data protectionCompare IAM strategies, encryption approaches and key-management trade-offs.
Govern multi-account environmentsApply AWS Organizations, compliance and shared-responsibility governance patterns.
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Reader questions
SCS-C03 practice exam FAQs
Who is SCS-C03 designed for?
Security engineers, cloud security architects, security analysts, DevSecOps practitioners and AWS professionals responsible for securing cloud workloads. AWS recommends 5 or more years of IT security experience designing and implementing security solutions, plus 2 or more years of hands-on experience securing AWS workloads.
How many questions and how much time?
AWS currently lists 65 questions and 170 minutes.
What is the passing score?
The official guide reports a minimum scaled score of 750 out of 1,000.
What is the SCS-C03 exam fee and validity?
AWS lists a registration fee of USD 300 plus applicable taxes and a certification validity period of 3 years.
Do I need a prior AWS certification for SCS-C03?
No specific prior certification is required, though AWS recommends the equivalent of 3-5 years of experience securing cloud solutions and familiarity with core AWS services.
What AWS services should I know for SCS-C03?
Focus on GuardDuty, Security Hub, Detective, IAM, KMS, AWS Organizations, Config, CloudTrail, WAF and Network Firewall, plus encryption, logging and incident-response concepts.
Are these real exam questions or dumps?
No. CertShield provides original independent practice content, not leaked, copied, recalled or unauthorized exam material.
Does a practice score guarantee certification success?
No. Use scores to identify gaps; they cannot predict your exact AWS exam result.
What if the free coupon expires?
Check the current coupon page. If no free allocation is available, use the standard Udemy listing only if the course still fits your needs.