A data scientist is presenting the recommendations from a monthslong modeling and experiment process to the company's Chief Executive Officer. Which of the following is the best set of artifacts to include in the presentation?
A. Methods, data overview, results, recommendations, and charts
B. Methodology, code snippets, findings, data tables, and p values
C. Recommendation charts justifications code reviews and results
D. Results, recommendations, justifications, and clear charts
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 2:
Which of the following layer sets includes the minimum three layers required to constitute an artificial neural network?
A. An input layer, a hidden layer, and an output layer
B. An input layer, a dropout layer, and a hidden layer
C. An input layer, a convolutional layer, and a hidden layer
D. An input layer, a pooling layer, and an output layer
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
質問 3:
Which of the following modeling tools is appropriate for solving a scheduling problem?
A. One-armed bandit
B. Decision tree
C. Gradient descent
D. Constrained optimization
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 4:
Which of the following is a key difference between KNN and k-means machine-learning techniques?
A. KNN is used for finding centroids, while k-means is used for finding nearest neighbors.
B. KNN operates exclusively on continuous data, while k-means can work with both continuous and categorical data.
C. KNN performs better with longitudinal data sets, while k-means performs better with survey data sets.
D. KNN is used for classification, while k-means is used for clustering.
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 5:
Which of the following compute delivery models allows packaging of only critical dependencies while developing a reusable asset?
A. Edge devices
B. Virtual machines
C. Containers
D. Thin clients
正解:C
解説: (Pass4Test メンバーにのみ表示されます)
質問 6:
Under perfect conditions, E. coli bacteria would cover the entire earth in a matter of days. Which of the following types of models is the best for explaining this type of growth?
A. Linear
B. Logarithmic
C. Exponential
D. Polynomial
正解:C
解説: (Pass4Test メンバーにのみ表示されます)
質問 7:
A data scientist has built an image recognition model that distinguishes cars from trucks. The data scientist now wants to measure the rate at which the model correctly identifies a car as a car versus when it misidentifies a truck as a car. Which of the following would best convey this information?
A. AUC/ROC curve
B. Confusion matrix
C. Box plot
D. Correlation plot
正解:B
解説: (Pass4Test メンバーにのみ表示されます)
質問 8:
A movie production company would like to find the actors appearing in its top movies using data from the tables below. The resulting data must show all movies in Table 1, enriched with actors listed in Table 2.

Which of the following query operations achieves the desired data set?
A. Perform a LEFT JOIN on Table 1 using column Movie, with Table 2 using column Acted_In.
B. Perform an INNER JOIN between Table 1 using column Movie, and Table 2 using column Acted_In.
C. Perform an INTERSECT between Table 1 using column Movie, and Table 2 using column Acted_In.
D. Perform a UNION between Table 1 using column Movie, and Table 2 using column Acted_In.
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
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Takahashi -
重要なキーワードや解説も丁寧で基礎も含めてこれDY0-001一冊で十分カバー出来ます。過去問を解くことを繰り返していれば問題なくDY0-001合格できると感じました。