C1000-059

C1000-059 practice questions, page 2 of 3, with answer review and explanations.

Question 6

When should median value be used instead of mean value for imputing missing data?

  1. for skewed data
  2. for real numbers
  3. for normally distributed data
  4. for large data sets

Question 7

Given the following matrix multiplication: What is the value of P?

  1. –9
  2. 17
  3. 12
  4. –7

Question 8

A neural network is composed of a first affine transformation (affine1) followed by a ReLU non-linearity, followed by a second affine transformation (affine2). Which two explicit functions are implemented by this neural network? (Choose two.)

  1. y = affine1(ReLU(affine2(x)))
  2. y = max(affine1(x), affine2(x))
  3. y = affine2(ReLU(affine1(x)))
  4. y = affine2(max(affine1(x), 0))
  5. y = ReLU(affine1(x), affine2(x))

Question 9

The formula for recall is given by (True Positives) / (True Positives + False Negatives). What is the recall for this example?

  1. 0.2
  2. 0.25
  3. 0.5
  4. 0.33

Question 10

After importing a Jupyter notebook and CSV data file into IBM Watson Studio in the IBM Public Cloud project, it is discovered that the notebook code can no longer access the CSV file. What is the most likely reason for this problem?

  1. CSV files cannot be used as data sources in Watson Studio.
  2. The CSV file was converted to a binary blob and must be converted in the notebook code.
  3. The CSV file is stored in a Cloud Object Storage.
  4. The CSV file is stored in a Watson Machine Learning instance and is only accessible via REST API.