FUNDAMENTALS OF COMPUTER

USING MICROSOFT EXCEL

HOW TO INSERT HEADERS FOOTERS IN EXCEL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A search tool that indexes multiple search engines is a ..
A
Boolean Operator
B
Newsgroup
C
Meta Search Engine
D
Subject Guide
Explanation: 

Detailed explanation-1: -These are search engines that will send users’ search terms to a group of different search engines (such as the ones mentioned above) and then display the search results from each. Examples include Dogpile, MetaCrawler, SUSI, Ixquick and Inference Find.

Detailed explanation-2: -Examples of metasearch engines include Skyscanner and Kayak.com, which aggregate search results of online travel agencies and provider websites and Searx, a free and open-source search engine which aggregates results from internet search engines.

Detailed explanation-3: -Metasearch engines You can form one search and a metasearch service will send the search to several other search engines and directories simultaneously so that you get the results from all of them in one place.

Detailed explanation-4: -The Search engine visits several websites and creates a database of these sites. This is also known as indexing. Any search engine answers several queries every second. The metasearch engines run the queries on most other search engines and in turn reflect the result in the form of the summarization of such sites.

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