MLS-C01 Modeling Practice Question
A data scientist is training a recurrent neural network (RNN) for time series forecasting. The training loss decreases steadily for the first 10 epochs, then plateaus. The validation loss starts increasing after epoch 10. What is the most appropriate action?
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
✓
Stop training early and use the model from epoch 10
The validation loss increasing while training loss decreases indicates overfitting. Early stopping halts training before overfitting worsens, preserving the model that performed best on validation data (epoch 10). Option B (continuing training) would increase overfitting. Option C (adding layers) may exacerbate overfitting. Option D (increasing batch size) is not directly addressing overfitting and may not help.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Stop training early and use the model from epoch 10
Why this is correct
Early stopping prevents overfitting; the model at epoch 10 generalizes better.
- ✗
Continue training for more epochs
Why it's wrong here
Validation loss is increasing, so more epochs will worsen overfitting.
- ✗
Add more layers to the network
Why it's wrong here
More layers increase capacity and may worsen overfitting.
- ✗
Increase the batch size
Why it's wrong here
Batch size affects convergence but not overfitting directly.
Go deeper
Related to this question
About these practice questions
This MLS-C01 question is part of Courseiva's 1,672-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This MLS-C01 practice question is part of Courseiva's free Amazon Web Services 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 MLS-C01 exam.