A market research firm wants to collect product reviews from a retailer's website for sentiment analysis. The website's robots.txt file disallows crawling of the /reviews/ path, but the firm believes the data is valuable. What should they do?

Proceed with scraping the /reviews/ path because robots.txt is not legally binding.

Scrape the data but limit the request rate to minimize impact on the website.

Contact the website owner to request permission to access the reviews data, possibly through an API or a data sharing agreement.

Use a different user agent to bypass the robots.txt restriction.

When generating dummy data, what should you ensure about the data?

It is completely random with no structure.

It has appropriate structure and variability to mimic real data.

It is identical to real data in every way.

Which of the following is a characteristic of NoSQL databases like MongoDB?

They primarily use SQL for querying data.

They use a flexible, schema-less data model, often storing documents in JSON-like format.

They enforce a strict schema with tables, rows, and columns.

They are designed for complex transactions with ACID guarantees.

CertNexusCertified Data Science Practitioner (CDSP)

Domain 2Objective 1

Objective 2.1 Gather Data Sets CERTIFIED-DATA-SCIENCE-PRACTITIONER Practice Questions (Page 5)

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 21–25

21expert · hard
A market research firm wants to collect product reviews from a retailer's website for sentiment analysis. The website's robots.txt file disallows crawling of the /reviews/ path, but the firm believes the data is valuable. What should they do?
Select an answer first
22foundation · easy
When generating dummy data, what should you ensure about the data?
Select an answer first
23foundation · easy
Which of the following is a common query language used with NoSQL databases?
Select an answer first
24foundation · easy
Which anonymization technique replaces original values with a different but plausible value?
Select an answer first
25foundation · easy
Which of the following is a characteristic of NoSQL databases like MongoDB?
Select an answer first

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Objective 2.1 Gather Data Sets CERTIFIED-DATA-SCIENCE-PRACTITIONER Practice Questions (Page 5)

Questions 21–25

A market research firm wants to collect product reviews from a retailer's website for sentiment analysis. The website's robots.txt file disallows crawling of the /reviews/ path, but the firm believes the data is valuable. What should they do?

When generating dummy data, what should you ensure about the data?

Which of the following is a common query language used with NoSQL databases?

Which anonymization technique replaces original values with a different but plausible value?

Which of the following is a characteristic of NoSQL databases like MongoDB?

Keep studying — 2.0 Extracting, Transforming, and Loading Data