AI0-001 AI Security Practice Question
An AI chatbot is being developed to assist with customer support. The team is concerned about prompt injection attacks where malicious users try to override the system's instructions. Which defense is MOST effective against direct prompt injection?
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
✓
Input validation and sanitization
Input validation and sanitization can detect and block attempts to inject malicious instructions. While guardrails help, the primary defense is to filter and validate user inputs before they reach the model.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Input validation and sanitization
Why this is correct
Sanitizing inputs removes or neutralizes injection attempts, directly mitigating prompt injection.
- ✗
Rate limiting API requests
Why it's wrong here
Rate limiting prevents abuse but does not stop a single crafted injection attack.
- ✗
Output filtering
Why it's wrong here
Output filtering catches harmful responses but doesn't prevent the injection from being processed.
- ✗
Using a larger model
Why it's wrong here
Model size does not inherently prevent prompt injection.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AI0-001 practice question is part of Courseiva's free CompTIA 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 AI0-001 exam.