Selected MCQ

Current Question
What does the term "bagging" refer to in ensemble learning?
  • A. A bag is placed around the dataset
  • B. Training multiple models on different random subsets and aggregating results
  • C. Sequentially training models to correct errors (boosting)
  • D. A feature engineering technique
Correct Answer: B
Explanation:
Bagging (Bootstrap Aggregating) trains multiple models on bootstrapped data samples and averages their predictions to reduce variance.
Related Question 1
What does the term 'manipulator' refer to in robotics?
  • A. A software robot
  • B. A robotic arm or mechanism for moving objects
  • C. A sensor type
  • D. An algorithm
Correct Answer: B
Explanation:
A manipulator is the robot arm or mechanical unit used to move and manipulate objects.
Related Question 2
What is 'ensemble learning' in machine learning?
  • A. Training deep networks only
  • B. Combining predictions of multiple models
  • C. Feature scaling process
  • D. A single-model hyperparameter search
Correct Answer: B
Explanation:
Ensemble learning combines predictions from several models to improve overall performance.
Related Question 3
What does the term "quantum supremacy" refer to?
  • A. A concept in quantum entanglement
  • B. When a quantum computer solves a problem, classical computers cannot feasibly solve
  • C. Quantum computers surpassing general AI
  • D. Complete failure of quantum error correction
Correct Answer: B
Explanation:
Quantum supremacy is when a quantum computer outperforms the best classical supercomputers on a particular task.
Related Question 4
In machine learning, what does "overfitting" refer to?
  • A. The model performs well on training data but poorly on new data
  • B. Model generalizes well to unseen data
  • C. Insufficient training iterations
  • D. A data normalization technique
Correct Answer: A
Explanation:
Overfitting means the model has learned noise or specific patterns of training data and fails to generalize to new data.
Related Question 5
What does the term "bandwidth" refer to in networking?
  • A. The number of concurrent connections
  • B. The maximum rate of data transfer across a given path
  • C. The frequency range of a wireless signal
  • D. The number of devices on a network
Correct Answer: B
Explanation:
Bandwidth is the maximum data transfer rate of a network path.