Correct Answer : A machine learning library in Python
Explanation : PyBrain is a machine learning library in Python that provides algorithms for neural networks, reinforcement learning, unsupervised learning, and more.
Correct Answer : _backwardImplementation()
Explanation : The _backwardImplementation() function computes the derivative of the output with regard to the input.
Correct Answer : 2
Explanation : The _forwardImplementation() function accepts two parameters, inbuf, and outbuf.
Correct Answer : ConvolutionalNetwork()
Explanation : The ConvolutionalNetwork() class can be used to create a Convolutional Neural Network in PyBrain.