IBM Watson Application Developer V3.1 v1.0

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What is the formula for recall in a classification system?

  • A. False Positives / (True Negatives + False Negatives)
  • B. True Positives / (True Positives + True Negatives)
  • C. True Positives / (True Positives + False Positives)
  • D. True Positives / (True Positives + False Negatives)


Answer : C

Reference:
https://towardsdatascience.com/accuracy-precision-recall-or-f1-331fb37c5cb9

Which statement describes why more than one collection would need to be created in IBM Watson Discovery service?

  • A. It is better to have multiple small collections than one big collection
  • B. The first collection uses default configuration for testing and additional collections are needed for custom configurations
  • C. To keep similar file types in their respective collections
  • D. The data may be so different that it doesn"™t make sense for it all to be queried at once


Answer : D

Reference:
https://ibmcloud-watson-day.mybluemix.net/files/discovery_V3.1.pdf

What are two of the main endpoints of the IBM Watson Text To Speech REST API? (Choose two.)

  • A. vocalization
  • B. intonation
  • C. voices
  • D. synthesis
  • E. accent


Answer : CD

Reference:
https://cloud.ibm.com/apidocs/text-to-speech

What type of input data can IBM Watson Assistant consume independently?

  • A. string of text
  • B. speech
  • C. images
  • D. audio


Answer : A

The IBM Watson Visual Recognition service is designed to work best with which types of images?

  • A. drawings
  • B. x-rays
  • C. graphics
  • D. photos


Answer : C

The IT helpdesk of a large enterprise routinely conducts surveys of its users. The survey allows the users to rate the performance of the helpdesk and to enter about 3-4 lines of comments in a free form text field.
Which IBM Watson service should the IT helpdesk use to drive insights from the texts and to look for patterns among complains for improvements?

  • A. Use Discovery to extract keywords and entities for common patterns across the comments plus gain insight into the sentiment expressed by each comment
  • B. Natural Language Classifier to evaluate sentiments expressed in the comments
  • C. Use Natural Language Classifier to look for concepts mentioned in the review
  • D. Use Personality Insights to analyze traits of the users logging the comments


Answer : D

In order to minimize the error, which method helps to find the derivative of the error with respect to each weight and subtracting this value from the weight value?

  • A. Answer Propagation
  • B. Back Propagation
  • C. Cognitive Propagation
  • D. Forward Propagation


Answer : B

Which two options can be detected by the IBM Watson Natural Language Understanding service- Entities API? (Choose two.)

  • A. names of persons, places and organizations
  • B. a person"™s gender based on their picture
  • C. relationships between entities
  • D. cities and geographic features
  • E. co-references between entities


Answer : AC

Which statement is a recommended practice when creating a chatbot with IBM Watson Assistant?

  • A. Define different opening sentences in the dialog flow to prevent repetitive conversations where the dialog always asks the same questions
  • B. Start with the dialog before defining any intents or entities
  • C. Increase the amount of the transcribed text to improve the quality and confidence of the extracted concepts
  • D. Use a separate workspace for each intent


Answer : A

An AI solution is implemented to detect what the user wants to do. The user mentions that he wants to buy a ski jacket for an upcoming vacation in Colorado?
How could IBM Watson Natural Language Classifier (NLC) be used in the solution?

  • A. Profile properties configured for NLC could direct selection of intent
  • B. A location intent could be trained to assess the relevant attitude for the desired product
  • C. The phase entered by the user is passed to a classifier to provide a class that indicates the user"™s intent
  • D. A new classifier could point to the correct answer to each question


Answer : B

What are two methods to view the logs for an IBM Cloud hosted Cloud Foundry application? (Choose two.)

  • A. the application log monitoring console in the Cloud dashboard
  • B. the Diagnostics tab in the top level Cloud dashboard
  • C. the Logging tab of the Watson Marketplace dashboard
  • D. the Performance Monitoring tab in the top level IBM Cloud dashboard
  • E. using the Command Line interface (CLI)


Answer : AE

Reference:
https://www.ibm.com/blogs/bluemix/2014/10/accessing-application-logs-bluemix/

What is the method for measuring the accuracy of an unsupervised machine learning system?

  • A. precision
  • B. using a confusion matrix
  • C. changing training set size and averaging results
  • D. cross-validation tests


Answer : D

Reference:
https://www.researchgate.net/post/Which_are_the_methods_to_validate_an_unsupervised_machine_learning_algorithm

What output data type by the IBM Watson Natural Language Understanding service?

  • A. DOCX
  • B. PDF
  • C. HTML
  • D. JSON


Answer : C

Reference:
https://cloud.ibm.com/apidocs/natural-language-understanding

What license is the IBM Watson SDK licensed under?

  • A. BSD License
  • B. Apache 2.0 License
  • C. GNU General Public License
  • D. IBM Public License


Answer : B

Reference:
http://watson-developer-cloud.github.io/java-sdk/docs/java-sdk-2.8.0/com/ibm/watson/developer_cloud/tone_analyzer/v3/package-summary.html

How can a developer prevent IBM Cloud from collecting data from API requests?

  • A. Pass a parameter called DisableTraining=False in the API request
  • B. Set a header parameter X-Watson-Learning-Opt-Out with the value true in the HTTP request
  • C. Set a header parameter called X-stop-training-watson to true in the HTTP request
  • D. Disable training from the IBM Cloud dashboard


Answer : B

Reference:
https://cloud.ibm.com/apidocs/discovery

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Exam contains 99 questions
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