Recently which country has discovered 31 million metric

To an ad hidden inside software that you downloaded from an internet site is known as

What type of operating system manages a group of networked computers and makes them appear as a single computer?

What is the purpose of the command grep in Unix-based operating systems?

A telecommunications network which allows computers to exchange data is known as 

In database, a fields is a

Which of the following is an open source software ?

What is the acronym for SMTP?

Which function key is used to refresh the current window?

Which of the following programming language for developing multimedia web pages, websites and web-based applications? 

Which of these is an example of an operating system?