What is the primary purpose of generating dummy or test data?

To increase the size of a dataset for machine learning.

To test data processing pipelines without using sensitive or unavailable real data.

To replace real data in production systems.

Which of the following is a common method to write data to Azure Data Lake Storage?

Using the boto3 SDK to upload files.

Using the pandas read_csv function to upload files.

Using the gcloud CLI to upload files.

Using the Azure SDK for Python (azure-storage-file-datalake) to upload files.

A data engineer is writing a Python script to collect data from a REST API that returns a maximum of 100 records per page and uses a 'next' link in the response for pagination. The API also has a rate limit of 10 requests per second. What is the correct approach to collect all records?

Loop while a 'next' link exists, make a GET request to that link, and add a time.sleep(0.1) between requests to respect the rate limit.

Use the requests library to send a request to the base URL and rely on the API to automatically return all records.

Make a single GET request with a large 'limit' parameter to retrieve all records at once.

Use a for loop to increment a page number and make requests until an empty response is received, without any delay.

Which of the following is an example of a third-party data provider?

A partner's customer database shared directly with you

Your company's website analytics

CertNexusCertified Data Science Practitioner (CDSP)

Domain 2Objective 1

Objective 2.1 Gather Data Sets CERTIFIED-DATA-SCIENCE-PRACTITIONER Practice Questions (Page 7)

Part of the 2.0 Extracting, Transforming, and Loading Data domain, which accounts for 17-25% of the CERTIFIED-DATA-SCIENCE-PRACTITIONER exam.

39questions here

8free pages

15concepts

17-25%of the exam

15 Concepts in This Objective

Read Data from Various Sources
SQL Query Writing
NoSQL Query Writing
Cloud Storage Integration
First-, Second-, and Third-Party Data Sources
Data Collection Methods
Data Sharing Agreements
Exploring Third-Party Data Availability
Collecting Open-Source Data
Using APIs for Data Collection
Web Scraping
Generating Dummy or Test Data
Generating Randomized Data
Generating Anonymized Data
Generating AI-Generated Synthetic Data

Questions 31–35

31foundation · easy
What is the primary purpose of generating dummy or test data?
Select an answer first
32foundation · easy
Which of the following is a common method to write data to Azure Data Lake Storage?
Select an answer first
33foundation · easy
Which type of data source is collected directly by your own organization from its own operations or customers?
Select an answer first
34application · medium
A data engineer is writing a Python script to collect data from a REST API that returns a maximum of 100 records per page and uses a 'next' link in the response for pagination. The API also has a rate limit of 10 requests per second. What is the correct approach to collect all records?
Select an answer first
35foundation · easy
Which of the following is an example of a third-party data provider?
Select an answer first

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