Linux is a (n) ____________ operating system

____________ are viruses that are triggered by the passage of time or on a certain date.

_________ is the process of finding errors in software code.

Making a field ______ meAns : that it cannot be left blank.

Software, such as viruses, worms and Trojan horses, that has a malicious intent, is known as:

Which of the following is NOT a type of broadband Internet connection?