Search engine Indexing (1)

How was the internet originally founded to facilitate search engine indexing?

• As a collection of four U.S. Department of Defense computers

• As a worldwide network of networks

• As a result of the explosion of the Internet of Things

• As a collaboration between British and American scientists

Answer explanation

The internet was originally founded as a collection of four U.S. Department of Defense computers.

What is the purpose of search engine indexing?

• To search every single available web page on the internet

• To collect, sort, and store data in their index

• To constantly update their index with new sites and pages

• To travel the world wide web and map links between pages

Answer explanation

Search engines collect, sort, and store data in their index to provide accurate and relevant search results.

What is the role of indexing in search engines?

• It provides search results on the screen

• It ensures that new sites and pages are added to the index

• It collects and stores data in the search engine's index

• It follows internal and external links between pages

Answer explanation

Indexing in search engines involves collecting and storing data in the search engine's index, ensuring new sites and pages are added. It does not provide search results on the screen or follow links between pages.

As of 2020, how many websites were estimated to be indexed by search engines?

• Around 50 billion

• Around 1.8 billion

• Almost 2 billion

• Over 4-5 billion

Answer explanation

The estimated number of websites as of 2020 was around 1.8 billion, making it the correct choice.

What is the function of spiders or crawlers in the context of search engine indexing?

• They provide search results on the screen

• They collect and store data in the search engine's index

• They follow internal and external links between pages

• They ensure that new sites and pages are added to the index

Answer explanation

Spiders or crawlers in search engines follow links between pages to collect and store data in the search engine's index.

What is the primary function of a search engine's crawler?

• To display search results to the user

• To follow links between web pages

• To collect and store data in the search engine's index

• To update the search engine's index with new sites and pages

Answer explanation

The primary function of a search engine's crawler is to follow links between web pages.

What is the role of a search engine's index?

• To display search results to the user

• To follow links between web pages

• To collect and store data in the search engine's index

• To update the search engine's index with new sites and pages

Answer explanation

The role of a search engine's index is to collect and store data, including new sites and pages.

How do search engines keep their index up-to-date?

• By manually adding new sites and pages

• By using crawlers to automatically update the index

• By asking users to submit new sites and pages

• By purchasing data from other search engines

Answer explanation

Search engines keep their index up-to-date by using crawlers to automatically update the index.

How do search engines ensure that their index is always up-to-date?

• By manually adding new sites and pages

• By using crawlers to automatically update the index

• By asking users to submit new sites and pages

• By purchasing data from other search engines

What is the main question that can be answered after watching this video?

• How was the internet originally founded?

• What is the purpose of search engines?

• How do search engines work?

• How many websites exist as of 2020?

Answer explanation

The main question that can be answered after watching this video is 'How do search engines work?'