SDSI Application Security Design Practice Question
When designing an API strategy, what is the 'API Contract' and why is it important for security?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A technical specification that allows for automated schema validation and security enforcement
The API contract defines how the API behaves and what it accepts. Security uses this contract for schema validation to block malformed requests.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A password file for the API
Why it's wrong here
It's not a password file.
- ✓
A technical specification that allows for automated schema validation and security enforcement
Why this is correct
Schema validation is a key security defense.
- ✗
A legal document for the API usage
Why it's wrong here
The contract is a technical specification, not a legal one.
- ✗
A file that lists all allowed IP addresses
Why it's wrong here
It's not an IP allowlist.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Cisco exam blueprint
This SDSI practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SDSI exam.