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Keep shoppingAPI Security Fundamentals: 600+ Practice Test MCQs
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100 students
API Security Fundamentals: 600+ Practice Test MCQs
600+ practice questions on API authentication, authorization, injection defense, rate limiting & transport security
Created byCrack The Interview Co.
Last updated 8/2026
English
What you'll learn
- Master API authentication, authorization, and access control through 600 scenario-based questions covering real-world vulnerabilities like BOLA and BFLA.
- Understand and defend against the OWASP API Security Top 10, including injection attacks, excessive data exposure, and broken object-level authorization.
- Build practical judgment on rate limiting, abuse prevention, gateway hardening, and transport security (TLS, mTLS, certificate pinning) for real APIs.
- Apply testing, monitoring, and incident-response practices for API security, with detailed explanations reinforcing why each answer is right or wrong.
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Included in This Course
400 questions
Description
This course delivers 600 carefully-crafted, scenario-based multiple-choice questions covering every major domain of API security, from authentication through incident response.
Organized into six 100-question practice tests, you'll work through:
Test 1: API Authentication Fundamentals — API keys vs. bearer tokens, OAuth grant types, PKCE, JWT verification, mTLS, and credential lifecycle discipline
Test 2: Authorization & Access Control — BOLA, BFLA, RBAC vs. ABAC, Mass Assignment, delegated consent, and break-glass access
Test 3: Injection & OWASP API Top 10 — SQL/NoSQL/command injection, XXE, SSRF, insecure deserialization, and path traversal
Test 4: Rate Limiting & Abuse Prevention — token buckets, sliding windows, distributed rate limiting, and bot/anomaly detection
Test 5: Gateway, Encryption & Transport Security — TLS/cipher hardening, certificate pinning, HSTS, WAF layering, and service-mesh mTLS
Test 6: Testing, Monitoring & Incident Response — fuzzing, penetration testing, SIEM integration, behavioral baselining, and API-specific incident playbooks
Every question comes with a detailed explanation for all four options — not just the correct one — so you understand exactly why an answer is right and why the alternatives fall short. Questions are deliberately written to connect concepts across tests and reinforce genuine, applied reasoning rather than rote memorization, the kind of judgment real API security work actually demands.
This course is ideal for API-security exam preparation, self-assessment, and reinforcing real-world development or AppSec experience. Whether you're a backend developer securing your first production API or a security engineer auditing a mature one, these practice tests are built to help you think like an API security practitioner — not just recall a vulnerability acronym.
Who this course is for:
- This course is for backend and API developers who want to build genuinely secure APIs rather than bolt on security as an afterthought, security engineers and AppSec practitioners who review or test APIs, and anyone preparing for an API-security-focused technical interview or certification. It's especially useful for practitioners who want to move beyond memorizing vulnerability acronyms like BOLA and SSRF and instead build durable, transferable judgment — recognizing which specific mechanism a given API's own risk, entity, and context actually call for, and why. Whether you're securing your first production API or auditing a mature one, these 600 scenario-based questions are designed to build the kind of reasoning real API security work demands.