Practice objective questions
for quick revision and examination
preparation. Try answering each question
before revealing the answer.
📚 Neural Networks and Deep Learning
📖 Unit 3
🎯 MCQs
Neural Networks and Deep Learning - Unit-3
1
Which of the following is a subset of machine learning?
ANeural Network
BPerceptron
CDeep Learning
DAll of the above
Correct AnswerDeep Learning
2
Which of the following functions can be used as an activation function in the output layer if we wish to predict the probabilities of n classes (p1, p2..pk) such that sum of p over all n equals to 1?
ASoftmax
BReLu
CSigmoid
DTanh
Correct AnswerSoftmax
3
The number of nodes in the input layer is 20 and the hidden layer is 5. The maximum number of connections from the input layer to the hidden layer are
A100
Bless than 100
Cmore than 100
DIt is an arbitrary value
Correct Answer100
4
In which of the following applications can we use deep learning to solve the problem?
AProtein structure prediction
BPrediction of chemical reactions
CDetection of exotic particles
DAll of the above
Correct AnswerAll of the above
5
Which of the following would have a constant input in each epoch of training a Deep Learning model?
AWeight between input and hidden layer
BWeight between hidden and output layer
CBiases of all hidden layer neurons
DActivation function of output layer
Correct AnswerWeight between input and hidden layer
6
In a classification problem, which of the following activation function is most widely used in the hidden layer of neural networks?
ASigmoid function
BHyperbolic function
CRectifier function
DAll of the above.
Correct AnswerRectifier function
7
Which of the following is true about bias?
ABias is inherent in any predictive model
BBias impacts the output of the neurons
CBoth A and B
DNone
Correct AnswerBoth A and B
8
What is the purpose of a loss function?
ACalculate the error value of the forward network
BOptimize the error values according to the error rate
CBoth A and B
DNone
Correct AnswerBoth A and B
9
Which of the following is a loss function?
ASigmoid function
BCross entropy
CReLu
DAll of the above
Correct AnswerCross entropy
10
Which of the following loss function is used in regression?
ALogarithmic loss
BCross entropy
CMean squared error
DNone
Correct AnswerMean squared error
11
What is gradient descent?
AActivation function
BLoss function
COptimization algorithm
DNone
Correct AnswerOptimization algorithm
12
What does a gradient descent algorithm do?
ATries to find the parameters of a model that minimizes the cost function
BAdjusts the weights at the input layers
CBoth A and B
DNone
Correct AnswerBoth A and B
13
Which of the following activation function can not be used in the output layer of an image classification model?
AReLu
BSoftmax
CSigmoid
DNone
Correct AnswerReLu
14
For a binary classification problem, which of the following activation function is used?
AReLu
BSoftmax
CSigmoid
DNone
Correct AnswerSigmoid
15
Types of Cost Function
ARegression Cost Function
BBinary Classification cost Functions
CMulti-class Classification Cost Function.
DAll the above
Correct AnswerAll the above
16
If you increase the number of hidden layers in a Multi Layer Perceptron, the classification error of test data always decreases.(True/ False)
ATrue
BFalse
Correct AnswerFalse
17
_____________ is a subset of Machine Learning that uses mathematical functions to map the input to the output.
Correct AnswerDeep Learning
18
A ______________ is an important parameter that determines how well a machine learning model performs for a given dataset
Correct Answercost function
19
__________ Functions are most often used as the output of a classifier, to represent the probability distribution over n different classes
Correct AnswerSoftmax
20
Rectified linear units are an excellent default choice of _________ layer.
Correct Answerhidden
21
Sigmoid and tanh activation functions cannot be with many layers due to the ____________ problem.
Correct Answervanishing gradient
22
__________ function overcomes the vanishing gradient problem, allowing models to learn faster and perform better