5.4 Extraction

What does Google search when a user performs a search?

• Google searches its cached files.
• Google searches user browsing history.
• Google searches social media posts.
• Google searches its indexed database of web pages.

What are the software programs called that Google uses to gather web pages?

• Indexers
• Crawlers (or spiders)
• Robots

• Web scrapers

How does Google determine which web pages to show as results?

• By the number of ads on the page

• By asking over 200 questions about the pages

• By how colorful the web page is

• By the popularity of the search term

What is PageRank?

• A formula to rate a web page's importance

• A method to rank ads

• A tool to find images

• A programming language for web development.

How fast does Google typically return search results after a user submits a query? (in seconds)