Your Company Is Performing Data Preprocessing for a Learning Algorithm

question 110

Multiple Choice

Your company is performing data preprocessing for a learning algorithm in Google Cloud Dataflow. Numerous data logs are being are being generated during this step, and the team wants to analyze them. Due to the dynamic nature of the campaign, the data is growing exponentially every hour. The data scientists have written the following code to read the data for a new key features in the logs. BigQueryIO.Read .named("ReadLogData") .from("clouddataflow-readonly:samples.log_data") You want to improve the performance of this data read. What should you do?

• A) Specify the TableReference object in the code. Specify the TableReference object in the code.
• B) Use .fromQuery operation to read specific fields from the table. Use .fromQuery operation to read specific fields from the table.
• C) Use of both the Google BigQuery TableSchema and TableFieldSchema classes. Use of both the Google BigQuery TableSchema and TableFieldSchema classes.
• D) Call a transform that returns TableRow objects, where each element in the PCollection represents a single row in the table. Call a transform that returns TableRow objects, where each element in the PCollection represents a single row in the table.

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Definitions:

Denis Kearney

An Irish-American immigrant known for his role in the late 19th century as a labor leader in California, advocating against Chinese immigration.

Chinese Descent

Individuals or populations that originate from China, sharing cultural, linguistic, or ancestral ties to the country.

Social Darwinism

A theory applying natural selection and survival of the fittest to sociology, economics, and politics, often used to justify political conservatism, imperialism, and racism.

Equitable Distribution

The fair and impartial division of resources or assets among people.