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Questions Bank (1379166 total)

What must be checked before removing duplicate records?

That they have missing values

That purchase dates match

That records are identical

100%

That each has a unique transaction ID

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Which type of data transformations should be done on the following types of data?

Marital Status (Single or Married)

Preference over operating systems (Windows, MacOS, Linux)

Education level (High-School, Bachelors, Masters, Doctorate)

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Corn is the most widely used feedstock for bioethanol production

it is not used in bioethanol production

❌

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Match the type of data to the tool you will use to gather the data.

	RSS feeds from online chat forums
	Website visits and views
	Consumer profile data

	APIs
	SQL
	BeautifulSoup

A-I, B-III, C-II

A-II, B-I, C-III

A-III, B-II, C-I

A-I, B-II, C-III

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How are wind power plants classified?

by purpose, by power, by the direction of the axis of the wind receiving equipment.

✅

according to working conditions, according to the direction of the wind wheel.

❌

by type of wind wheel, by number of axes of wind receiving equipment.

❌

by the number of blades of the wind wheel, by speed.

❌

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Which of the following types of energy sources are traditional?

Solar energy, wind energy

Secondary resources

Natural gas, coal, oil, energy of large rivers, energy of the atom

Thermal energy of the earth, wind energy

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Python is a popular software used for importing data.

True

False

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In which country canola is the feedstock for biodiesel production?

Radolf Diesel's first diesel engine worked on?

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