Answer the following 1. Critically discuss on the Multi-layer neural network with an example architecture diagram. (10 Mark 10 W ) 2. Perform two training steps for the network as shown in figure given using the Widrow-Hoff learning rule. Assume the training data (20 Marks) [2 ] old, = -1; x2 = -2),d = 1 And the initial weight vector is w1 = 0 with c = 0.25 d Leaming Signal 3. Design a neural network model using McCulloch and Pitt's neural network model for NOR gate. (10 Mar 4. Calculate the output of the neural network illustrated below using the following activation functions y, - fos) 0 a) Binary Sigmoidal Activation function b) Hyperbolic Sigmoidal Activation Function