What does a metasearch engine do?

A metasearch engine searches directories and databases for text only.

A metasearch engine compiles information from subscription databases and publishes them.

A metasearch engine searches for digital and audio files and indexes them by category.

A metasearch engine searches the databases of multiple search engines simultaneously.

The answer is : A metasearch engine searches the databases of multiple search engines simultaneously.

>Metasearch engines take input from a user and simultaneously send out queries to third party search engines for results. Sufficient data is collected, formatted by their ranks and presented to the users.

>A metasearch engine is efficient, as it is capable of generating a huge volume of data.