What is a software program that crawls the web, searching and indexing web pages?
A. Spider
B. Flypage
C. Webcreeper
D. Cybertime
Answer (2)
The correct answer is A. Spider, which refers to a software program that crawls the web to search and index web pages. These programs gather and organize data for search engines, ensuring users can find relevant information efficiently. Spiders follow links from one page to another and continuously update the information they store.
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The software program that crawls the web, searching and indexing web pages is known as a Spider .
Spiders, also called web crawlers, are automated scripts or programs that systematically browse the World Wide Web for the purpose of indexing web content. The process involves the spider visiting websites, reading the page content, as well as the metadata of these pages, and then recording this information in the search engine's database. This helps in making the content of these pages searchable by users of the search engine.
Key Functions of Spiders:
Crawling: The spider starts at a list of webpages (often called seed URLs) and follows hyperlinks from one page to another, effectively 'crawling' the web.
Indexing: Information from the websites the spider visits is collected and stored in a large database called the index. The index is used to quickly find relevant information in response to user queries.
Following Links: As spiders crawl from page to page, they follow links on the pages and, in this way, discover new pages to include in the search engine's index.
Why are Spiders Important?
Spiders are crucial for search engines to ensure that the web is accessible and searchable. By constantly updating their databases with new content, spiders help ensure that users have access to the most accurate and up-to-date information available. The spider’s work ensures that when you enter a search query, the search engine can provide relevant and timely results.
The correct choice for the given question, therefore, is (A) Spider.
