Search Engines

Question 1

What is a search engine?

Answer 1

A program that searches for and identifies items in a database that correspond to keywords or characters specified by the user.

Question 2

What does a search engine do?

Answer 2

Provide users the ability to find sites.
Search providers generate a database of sites.
Search performed using keywords.
Add filters to provide functionality.

Question 3

How does a web crawler work?

Answer 3

1. Crawler visits URL
2. Looks for robots.txt file
3. Crawls site pages
4. Indexes text and other content
5. Follows hyperlinks to external pages

Question 4

How are search results displayed?

Answer 4

Meta title, meta description, URL.

Question 5

What factors affect SEO?

Answer 5

Quality inbound links, internal links, mobile-friendly, regular, high quality content or good user experience (site speed and accessibility).

Question 6

How do mark-up languages render hyperlinks?

Answer 6

HTML = blue and underlined (default).
CSS = can change the text decoration
Javascript = creation of buttons with the hyperlinks in.