Question 838 of 1,000
Machine Learning and Deep LearningmediumMultiple ChoiceObjective-mapped

AI0-001 Machine Learning and Deep Learning Practice Question

This AI0-001 practice question tests your understanding of machine learning and deep learning. 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.

Exhibit

Refer to the exhibit.

Training log:
Epoch 1/20
loss: 1.2 - acc: 0.45 - val_loss: 1.3 - val_acc: 0.42
Epoch 5/20
loss: 0.4 - acc: 0.85 - val_loss: 1.1 - val_acc: 0.68
Epoch 10/20
loss: 0.1 - acc: 0.98 - val_loss: 2.1 - val_acc: 0.60

Based on the exhibit, what is the likely problem with the model?

Exhibit

Refer to the exhibit.

Training log:
Epoch 1/20
loss: 1.2 - acc: 0.45 - val_loss: 1.3 - val_acc: 0.42
Epoch 5/20
loss: 0.4 - acc: 0.85 - val_loss: 1.1 - val_acc: 0.68
Epoch 10/20
loss: 0.1 - acc: 0.98 - val_loss: 2.1 - val_acc: 0.60

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

Overfitting

The exhibit shows training loss decreasing to near zero while validation loss increases after a certain point, which is a classic sign of overfitting. The model is memorizing the training data rather than learning generalizable patterns, leading to poor performance on unseen 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.

  • Batch size too small

    Why it's wrong here

    Small batch size introduces noise but not necessarily this pattern.

  • Overfitting

    Why this is correct

    Correct: Training loss decreases but validation loss increases, classic overfitting.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Learning rate too high

    Why it's wrong here

    A high learning rate would cause loss to diverge or oscillate.

  • Underfitting

    Why it's wrong here

    Underfitting would show high training loss, not low.

Common exam traps

Common exam trap: answer the scenario, not the keyword

CompTIA often tests the distinction between overfitting and underfitting by showing loss curves where candidates mistakenly focus on the low training loss alone, ignoring the rising validation loss that confirms overfitting.

Trap categories for this question

  • Command / output trap

    Underfitting would show high training loss, not low.

Detailed technical explanation

How to think about this question

Overfitting occurs when a model with high capacity (e.g., many parameters) learns noise and outliers in the training data. Techniques like L1/L2 regularization, dropout, early stopping, or reducing model complexity are used to mitigate it. In practice, monitoring the gap between training and validation loss curves is a key diagnostic for overfitting, especially in deep learning with large networks.

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?

Machine Learning and Deep Learning — This question tests Machine Learning and Deep Learning — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Overfitting — The exhibit shows training loss decreasing to near zero while validation loss increases after a certain point, which is a classic sign of overfitting. The model is memorizing the training data rather than learning generalizable patterns, leading to poor performance on unseen 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.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jul 4, 2026

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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.