Data Engineering - 7

Data Engineering - 7

University

20 Qs

quiz-placeholder

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Data Engineering - 7

Data Engineering - 7

Assessment

Quiz

Science

University

Practice Problem

Easy

Created by

Afsaneh Doryab

Used 9+ times

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20 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What are some of the disadvantages of having an in-house cluster, choose all that apply?

Primary costs are hardware and personnel

Continuous maintenance

Very flexible operations

Difficult to predict use and upgrade equipment

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Which of these are key cloud computing characteristics?

Virtualization

Speed

Cost

Lack of flexibility

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which one is correct?

Join combines columns

Join combines rows

Join combines both rows and columns

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identify the function used by the pandas library to replace NULL values?

fillnan()

fillnull()

fillall()

fillna()

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What JOIN should I perform if I wish to retain only the common rows between two tables?

INNER JOIN

LEFT JOIN

CROSS JOIN

OUTER JOIN

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 LEFT JOIN and RIGHT JOIN can result in NULL values.

True

False

None of the above

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Identify command to read in csv file to a pandas dataframe?

.read_txt

.read_commasepartedvalue

.read_json

.read_csv

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