AI0-001 AI Models and Data Engineering Practice Question
Exhibit
Refer to the exhibit. ``` Epoch 1/10 - loss: 0.6932 - accuracy: 0.5234 - val_loss: 0.6918 - val_accuracy: 0.5312 Epoch 2/10 - loss: 0.4231 - accuracy: 0.8047 - val_loss: 0.5234 - val_accuracy: 0.7422 Epoch 3/10 - loss: 0.3125 - accuracy: 0.8828 - val_loss: 0.6015 - val_accuracy: 0.7344 Epoch 4/10 - loss: 0.2146 - accuracy: 0.9219 - val_loss: 0.7234 - val_accuracy: 0.7188 Epoch 5/10 - loss: 0.1478 - accuracy: 0.9531 - val_loss: 0.8342 - val_accuracy: 0.7031 ```
An engineer is training a neural network and observes the output shown. Which conclusion is most likely correct?
⚠ Common exam trap
CompTIA often tests the distinction between overfitting and underfitting by presenting a loss curve where training loss decreases but validation loss increases, leading candidates to mistakenly attribute the issue to vanishing gradients or a high learning rate.
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
✓
The model is overfitting after epoch 2.
The output shows training loss decreasing while validation loss increases after epoch 2, which is a classic sign of overfitting. The model begins to memorize the training data rather than generalize, leading to poor performance on unseen data. This pattern confirms that overfitting starts after epoch 2, making option B correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The gradients are vanishing.
Why it's wrong here
Gradients vanishing would cause slow convergence.
- ✓
The model is overfitting after epoch 2.
Why this is correct
Training loss decreases, validation loss increases.
- ✗
The model is underfitting.
Why it's wrong here
Training accuracy is high, so not underfitting.
- ✗
The learning rate is too high.
Why it's wrong here
Loss is not diverging.
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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.