Question 546 of 1,000

Implementing AI Solutions →easyMultiple ChoiceObjective-mapped

AI0-001 Implementing AI Solutions Practice Question

This AI0-001 practice question tests your understanding of implementing ai solutions. 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 data scientist is building a binary classification model to predict customer churn. The dataset has 90% non-churn and 10% churn. After training, the model achieves 90% accuracy, but the recall for the churn class is only 20%. Which metric should the team primarily focus on to evaluate the model's effectiveness?

A
Recall for the churn class
Recall measures how many actual churners are correctly identified, which is the key concern.
B
Accuracy
Why wrong: Accuracy is misleading because the model can achieve 90% by simply predicting the majority class.
C
Area Under the ROC Curve (AUC-ROC)
Why wrong: AUC-ROC is a good overall metric but does not directly indicate recall for the minority class.
D
Precision for the non-churn class
Why wrong: Precision for the majority class is not addressing the problem of missing churners.

Full breakdown with real-world context →

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

✓

Recall for the churn class

When classes are imbalanced, accuracy is misleading. Recall (or F1) for the minority class is more informative.

Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
Recall for the churn class
Why this is correct
Recall measures how many actual churners are correctly identified, which is the key concern.
Related concept
OSPF neighbours must agree on key parameters.
✗
Accuracy
Why it's wrong here
Accuracy is misleading because the model can achieve 90% by simply predicting the majority class.
✗
Area Under the ROC Curve (AUC-ROC)
Why it's wrong here
AUC-ROC is a good overall metric but does not directly indicate recall for the minority class.
✗
Precision for the non-churn class
Why it's wrong here
Precision for the majority class is not addressing the problem of missing churners.

Common exam traps

Common exam trap: OSPF can fail even when IP connectivity looks correct

OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.

Detailed technical explanation

How to think about this question

OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.

KKey Concepts to Remember

OSPF neighbours must agree on key parameters.
Router ID selection can affect neighbour relationships and LSDB output.
OSPF cost influences the preferred path.
A route can appear in OSPF information but not become the installed route.

TExam Day Tips

Check area mismatch first when OSPF adjacency fails.
Review passive interfaces when a network is advertised but no neighbour forms.
Use show ip ospf neighbor and show ip route clues carefully.

Key takeaway

OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.

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. OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough. 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.

Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related AI0-001 OSPF questions on adjacency and route selection.

Related AI0-001 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

AI Infrastructure and Technologies practice questions

Practise AI0-001 questions linked to AI Infrastructure and Technologies.

AI Security practice questions

Practise AI0-001 questions linked to AI Security.

AI Concepts and Foundations practice questions

Practise AI0-001 questions linked to AI Concepts and Foundations.

AI Concepts and Techniques practice questions

Practise AI0-001 questions linked to AI Concepts and Techniques.

Machine Learning and Deep Learning practice questions

Practise AI0-001 questions linked to Machine Learning and Deep Learning.

AI Models and Data Engineering practice questions

Practise AI0-001 questions linked to AI Models and Data Engineering.

Implementing AI Solutions practice questions

Practise AI0-001 questions linked to Implementing AI Solutions.

AI Implementation and Operations practice questions

Practise AI0-001 questions linked to AI Implementation and Operations.

AI Security, Ethics and Governance practice questions

Practise AI0-001 questions linked to AI Security, Ethics and Governance.

AI Governance and Ethics practice questions

Practise AI0-001 questions linked to AI Governance and Ethics.

CompTIA A+ hardware practice questions

Practise AI0-001 questions linked to CompTIA A+ hardware.

CompTIA A+ mobile devices practice questions

Practise AI0-001 questions linked to CompTIA A+ mobile devices.

Practice this exam

Start a free AI0-001 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions 20 questions 30 questions 50 questions Timed 30

AI0-001 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this AI0-001 question test?

Implementing AI Solutions — This question tests Implementing AI Solutions — OSPF neighbours must agree on key parameters..

What is the correct answer to this question?

The correct answer is: Recall for the churn class — When classes are imbalanced, accuracy is misleading. Recall (or F1) for the minority class is more informative.

What should I do if I get this AI0-001 question wrong?

What is the key concept behind this question?

OSPF neighbours must agree on key parameters.

About these practice questions

Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Last reviewed: Jul 4, 2026

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

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.