- A
Tampering with training data
Why wrong: Data poisoning is a tampering threat during preprocessing.
- B
Spoofing of data sources
Why wrong: Spoofing is a valid threat at data collection if sources are impersonated.
- C
Information disclosure via data leakage
Why wrong: Sensitive data could be leaked during collection or preprocessing.
- D
Denial of Service (DoS)
Correct. DoS typically targets the serving infrastructure, not data collection.
Question 928 of 1,000
AI0-001 AI Security Practice Question
This AI0-001 practice question tests your understanding of ai security. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A security team is threat modeling an AI system that recommends financial products. They want to analyze threats unique to the ML pipeline using STRIDE. Which threat is LEAST applicable to the data collection and preprocessing stage?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"least"Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
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
✓
Denial of Service (DoS)
Denial of Service (DoS) is least applicable to the data collection and preprocessing stage because DoS threats typically target the availability of the model serving infrastructure (e.g., API endpoints, inference servers) rather than the static data ingestion pipeline. In the ML pipeline, DoS is more relevant during model deployment and inference, where an attacker could overwhelm the system with requests, not during the collection or preprocessing of training data.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Tampering with training data
Why it's wrong here
Data poisoning is a tampering threat during preprocessing.
- ✗
Spoofing of data sources
Why it's wrong here
Spoofing is a valid threat at data collection if sources are impersonated.
- ✗
Information disclosure via data leakage
Why it's wrong here
Sensitive data could be leaked during collection or preprocessing.
- ✓
Denial of Service (DoS)
Why this is correct
Correct. DoS typically targets the serving infrastructure, not data collection.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the candidate's ability to map STRIDE threats to the correct ML pipeline stage, and the trap here is that candidates mistakenly apply DoS to data collection because they think of 'overloading the data pipeline' rather than recognizing that DoS primarily targets the availability of the deployed model service.
Detailed technical explanation
How to think about this question
In the ML pipeline, the STRIDE threat model maps each stage to specific risks: data collection and preprocessing are most vulnerable to tampering (poisoning), spoofing (fake data sources), and information disclosure (PII leakage). DoS attacks, such as HTTP flood or resource exhaustion, are typically aimed at the inference API (e.g., overwhelming a REST endpoint serving predictions) rather than the batch-oriented data ingestion layer, which often uses queuing systems like Apache Kafka that are resilient to request floods.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the AI0-001 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this AI0-001 question test?
AI Security — This question tests AI Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Denial of Service (DoS) — Denial of Service (DoS) is least applicable to the data collection and preprocessing stage because DoS threats typically target the availability of the model serving infrastructure (e.g., API endpoints, inference servers) rather than the static data ingestion pipeline. In the ML pipeline, DoS is more relevant during model deployment and inference, where an attacker could overwhelm the system with requests, not during the collection or preprocessing of training data.
What should I do if I get this AI0-001 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
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.
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