CNN Quiz 45 Questions with Verified Answers,100% CORRECT

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CNN Quiz 45 Questions with Verified Answers Emmerson Mnangagwa has taken over as president of what southern African country, following the resignation of former President Robert Mugabe? - CORRECT ... ANSWER Zimbabwe Name the North African country whose president promised to respond with "brute force" to the worst terrorist attack in his nation's history, which took place at a mosque last Friday. - CORRECT ANSWER Egypt From what eastern Asian country did a soldier recently defect, surviving multiple gunshots as he crossed the Demilitarized Zone (DMZ)? - CORRECT ANSWER North Korea Pope Francis became the first leader of the Roman Catholic Church to visit what southeast Asian country, whose Rohingya Muslims compose a small minority of the largely Buddhist population? - CORRECT ANSWER Myanmar (Burma) The U.S. Federal Communications Commission has proposed eliminating certain Internet rules known as what? - CORRECT ANSWER Net Neutrality On what Indonesian island is Mount Agung, whose recent eruption has triggered evacuation orders for more than 100,000 people? - CORRECT ANSWER Bali In what U.S. state would you find the town of Earth, which is the only place on the planet with that specific, one-word name? - CORRECT ANSWER Texas North Korea said a missile it test-fired this week, which flew higher than any other missile it had ever launched, was capable of hitting what? - CORRECT ANSWER The U.S. mainland What type of celestial object, believed to be a piece of another solar system, has reportedly entered our solar system? - CORRECT ANSWER An asteroid Hurricane Maria is believed to have caused the largest blackout in U.S. history. On what island did it make landfall on September 20? - CORRECT ANSWER Puerto Rico Why did United Airlines temporarily suspend its flights to New Delhi, India? - CORRECT ANSWER Air pollution Twelve people who'd visited Anaheim, California were recently sickened by an outbreak of what dangerous disease? - CORRECT ANSWER Legionnaires' Disease The epicenter of Sunday's magnitude 7.3 earthquake was located in what Middle Eastern country? - CORRECT ANSWER Iran Name the Australian state that's located closest to the Great Barrier Reef and is responsible for maintaining its Marine Park. - CORRECT ANSWER Queensland In how many countries is slavery currently legal? - CORRECT ANSWER None In what North African nation did a CNN reporter recently witness an apparent auction of human lives, which was covered on Wednesday's show? - CORRECT ANSWER Libya Name the African country that has been led by Robert Mugabe since it achieved its independence in 1980. - CORRECT ANSWER Zimbabwe What element, which is key to the substance Vantablack, forms more compounds than any other element on the Periodic Table? - CORRECT ANSWER carbon Which chamber of the U.S. Congress passed legislation on Thursday that's aimed at reforming the nation's taxes? - CORRECT ANSWER House of Representatives A painting of Jesus Christ that recently sold for more than $450 million at auction, setting a record, is attributed to what artist? - CORRECT ANSWER Leonardo Da Vinci Steps of CNN - CORRECT ANSWER Input Filters Feature maps Activation Function Max pooling convolutional layers flattened output prediction In CNN, the input image is passed through a series of convolutional layers, each of which extracts a - CORRECT ANSWER set of features Each convolutional layer in a CNN consists of a set of - CORRECT ANSWER filters Feature map - CORRECT ANSWER output of the dot product which highlights the areas of the image that are similar to the filter The layered feature extraction process in a CNN can be thought of as a - CORRECT ANSWER hierarchy of features One benefit of layered feature extraction in CNN is that it allows the model to learn features that are - CORRECT ANSWER robust to variations in the input Traditional NNs may suffer from the ______ ____ ______ which occurs when the gradients used to update the network weights become so small that they have little effect on the networks output - CORRECT ANSWER vanishing gradient problem Pooling layers are used to _______ ____ _____ ____ produced by the convolutional layers - CORRECT ANSWER downsample the feature maps By down sampling the feature maps, the network becomes more computationally efficient and it reduces the chance of - CORRECT ANSWER overfitting Dropout layers - CORRECT ANSWER randomly drop out a fraction of the neurons from becoming too dependent on each other and encourages them to learn more robust features Dropout is a form of regularization that helps to prevent - CORRECT ANSWER overfitting Whats the output shape of a Conv2D layer with 32 filters and input shape of (None, 28, 28, 3)? - CORRECT ANSWER (None, 26, 26, 32) The Conv2D layer has 32 filters, which means the output will have 32 feature maps. You do 28-3+1 where 3 is the filter shape and the stride is 1. What is the input shape of a fully connected layer in a traditional NN? - CORRECT ANSWER (batch_size, num_features) In traditional NN, the input to a fully connected layer is a __________version of the output of the previous layer - CORRECT ANSWER flattened Batch size 32 which means the model processes 32 images at a time. The input tensor to the model has shape of - CORRECT ANSWER (32, height, width, 3) What is the output shape of a MaxPooling2D layer with pool_size = (2,2) and input shape of (None, 28, 28, 3)? - CORRECT ANSWER (None, 14, 14, 3) The pooling operation reduces the height and width by a factor of 2, hence the output shape will have half the size of the input shape along the height and width dimensions. In a CNN, what is the purpose of using multiple Conv2D layers - CORRECT ANSWER to learn different features at different levels of abstraction What is the purpose of the flatten layer in CNN? - CORRECT ANSWER to convert the 2D feature maps into a 1D vector b/c most fully connected layers in a NN expect 1D inputs What is the output shape of a softmax layer in a classification neural network? - CORRECT ANSWER A vector of probabilities that sum to 1 What is the input shape of a Conv2d layer in a CNN? - CORRECT ANSWER (batch_size, num_channels, height, width) What is the output shape of a Conv2D layer with 32 filters and input shape of (None, 244, 244, 3) - CORRECT ANSWER (None, 244, 244, 32) What is the output shape of a ReLU activation function? - CORRECT ANSWER A vector of the same shape as the input What is the output shape of a dropout layer in a NN? - CORRECT ANSWER A vector of the same shape as the input What is the input shape of a GlobalMaxPooling2D layer in a CNN? - CORRECT ANSWER (None, height, width, num_channels) What is the output shape of a sigmoid activation function? - CORRECT ANSWER A binary value [Show More]

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