11. What is the purpose of using regular expressions in web scraping? A. To generate HTML code B. To scrape data from databases C. To extract patterns from text D. To render JavaScript code Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C Solution: Regular expressions are used to extract specific patterns from text data.
12. What is the BeautifulSoup library used for in web scraping? A. Sending HTTP requests B. Rendering JavaScript C. Extracting data from HTML and XML D. Creating web forms Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C Solution: BeautifulSoup is used for extracting data from HTML and XML documents.
13. What is the disadvantage of using web scraping for data extraction? A. It's faster than API requests B. It's legally prohibited C. It's limited to simple websites D. It's fragile and may break due to website changes Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D Solution: Web scraping can break if the website structure changes, making it fragile.
14. What is the Selenium library used for in web scraping? A. Handling HTTP requests B. Creating APIs C. Scraping static websites D. Automating browser actions Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D Solution: Selenium is used for automating browser actions in web scraping.
15. What ethical considerations should be taken into account in web scraping? A. Scraping any website without permission B. Avoiding robots.txt guidelines C. Scraping personal or sensitive data D. Scraping freely accessible public data Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C Solution: Ethical considerations include not scraping personal or sensitive data without permission.
16. What is the purpose of the scrapy framework in web scraping? A. Creating web forms B. Automating browser actions C. Handling HTTP requests D. Structured and efficient web scraping Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D Solution: Scrapy is a framework for structured and efficient web scraping, often used for large-scale projects.
17. What is the role of the robots.txt file in relation to web scraping? A. It blocks all web scraping activities B. It allows all web scraping activities C. It provides guidelines for web scraping D. It allows scraping any content Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C Solution: The robots.txt file provides guidelines on which parts of a website can be scraped.
18. How does the headless browser mode in Selenium work? A. It runs a browser with a visible user interface B. It runs a browser without a visible user interface C. It runs a browser with extra features D. It runs a browser with a virtual environment Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B Solution: The headless mode in Selenium runs a browser without a visible user interface.
19. What is rate limiting in the context of web scraping? A. Automatically blocking scraping activities B. Sending requests at a controlled rate C. Scraping only during specific hours D. Scraping data without any limits Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B Solution: Rate limiting involves sending requests at a controlled rate to avoid overloading the server.
20. How can you handle CAPTCHAs in web scraping? A. By solving CAPTCHAs manually B. By ignoring CAPTCHAs C. By using APIs to bypass CAPTCHAs D. By using CAPTCHA-solving services Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D Solution: CAPTCHA-solving services can be used to automate solving CAPTCHAs in web scraping.
