AIS - Chapter 15 Quiz

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If a confusion matrix shows 46 TP, 6 FN, 500 TN, and 4 FP, what is the recall ratio? Note: Round your answer to 2 decimal places. A) 0.90 B) 0.92 C) 0.98 D) 0.88 E) None of these choices are correct.

D) 0.88

Which of the following is true? A) Because blockchain transactions are stored in chronological order, you may trace a block from an earlier transaction block to the most recent block in the blockchain. B) Both permissioned and public blockchains need miners to determine which transaction block should be added next. C) Ethereum is a private blockchain. D) Smart contract was introduced in Ethereum.

D) Smart contract was introduced in Ethereum.

Which of the following best describes reinforcement learning? A) The model determines how elements of the dataset are alike. B) The training data match inputs to nodes in the network. C) The training data contain input—output pairs. D) The model learns by trial-and-error. E) None of these choices are correct.

D) The model learns by trial-and-error.

Ben goes to his bank to wire transfer $1,000 to his sister Jennifer. The role of the bank in this transaction is best described as: a) miner b) blockchain c) middleman d) consensus

C) middleman

Which feature cannot be found in bitcoin? A) Double spend B) Anyone can join and leave the bitcoin network at any time C) Immutable history of transactions D) A new block is added every 10 minutes

A) Double Spend

Which of the following best describes a confusion matrix? A) It is a table summarizing the prediction results. B) It has as many rows and columns as classifications to predict. C) It can be used to calculate other performance metrics. D) All of these choices are correct. E) None of these choices are correct.

A) It is a table summarizing the prediction results.

Which of the following best describes the difference between artificial intelligence and machine learning? A) Machine learning is a subset of AI. B) Machine learning only applies to deep learning algorithms. C) AI and machine learning are the same thing. D) Machine learning requires less data than AI. E) None of these choices are correct.

A) Machine learning is a subset of AI.

Which of the following is not part of the virtuous cycle of machine learning? A) Model B) Learn C) Predict D) Data E) None of these choices are correct.

A) Model

Which of the following best describes semi-supervised learning? A) The training data contain some missing labels or incomplete data. B) The training data match inputs to nodes in the network. C) The training data contain input—output pairs. D) The training data only include input values. E) None of these choices are correct.

A) The training data contain some missing labels or incomplete data.

Which of the following is not directly related to one of the five questions that machine learning/AI is best suited to answer? A) Which business strategy will be most successful? B) Is this firm a good merger candidate? C) What type of customer will like this new product? D) How much can we sell this product for? E) None of these choices are correct.

A) Which business strategy will be most successful?

If a confusion matrix shows 46 TP, 6 FN, 500 TN, and 4 FP, what is the precision ratio? Note: Round your answer to 2 decimal places. A) 0.90 B) 0.92 C) 0.98 D) 0.88 E) None of these choices are correct.

B) 0.92

Which of the following best describes deep learning? A) Deep learning is used to solve philosophical problems. B) Deep learning involves complex, multilayer neural networks. C) Deep learning is different from machine learning in fundamental ways. D) Deep learning provides more output values than machine learning. E) None of these choices are correct.

B) Deep learning involves complex, multilayer neural networks.

If a confusion matrix shows 46 TP, 6 FN, 500 TN, and 4 FP, what is the accuracy ratio? Note: Round your answer to 2 decimal places. A) 0.90 B) 0.92 C) 0.98 D) 0.88 E) None of these choices are correct.

C) 0.98

Which of the following is not true with respect to artificial intelligence? A) AI is a broad field in computer science. B) AI is intelligence exhibited by machines rather than humans. C) AI began in the 1990s. D) AI is also called cognitive technologies. E) None of these is true.

C) AI began in the 1990s.

Which of the following best describes machine learning? A) Machine learning is driven by programming instructions. B) Machine learning is a different branch of computer science from AI. C) Machine learning is a technique where a software model is trained using data. D) Machine learning is the ability of a machine to think on its own. E) None of these choices are correct.

C) Machine learning is a technique where a software model is trained using data.

Which of the following best describes artificial neural networks? A) Training a neural network involves the use of real-world data. B) Deep learning is required for a neural network. C) Neural networks consist of inputs, neurons or nodes, and outputs. D) Neural networks only have two layers. E) None of these choices are correct.

C) Neural networks consist of inputs, neurons or nodes, and outputs.

Which of the following best describes supervised learning? A) The training data contain missing labels or incomplete data. B) The training data match inputs to nodes in the network. C) The training data contain input—output pairs. D) The training data only include input values. E) None of these choices are correct.

C) The training data contain input—output pairs.

When we refer to smart contract in blockchain, we mean: A) a digital contract that can be distributed to the participants with all terms defined. B) a digital copy of paper contract such as a Word file. C) a piece of software code that can be executed or triggered by business activities. D) a contract that can be edited at any time for business rules.

C) a piece of software code that can be executed or triggered by business activities.

Which of the following best describes unsupervised learning? A) The training data contain missing labels or incomplete data. B) The training data match inputs to nodes in the network. C) The training data contain input—output pairs. D) The training data only include input values. E) None of these choices are correct.

D) The training data only include input values.

What information does a block in the Bitcoin network not contain? A) The sender B) The receiver C) The quantity of bitcoins to transfer D) The sender and the receiver E) None, a block contains all of this information.

E) None, a block contains all of this information.


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