What will come in place of the question mark (?) in the

An object embedded in a web page or email, which unobtrusively (usually invisibly) allows checking that a user has accessed the content is called

Which of the following keys is not on the number keypads?

_________ computers exhibits the features of both analog and digital computers.

The device which store information and are used by the computer for its working are called

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

Which one of the following is an example of an input AND output device?

In which operating system is the 'bash' shell commonly used?

A new workbook contains how many worksheets by default in MS Excel?

Which of the following is the appropriate definition for Information Technology?

At which layer of the OSI model does the MAC address exist?