School Net is a network that connects 1000 secondary schools, 100 computer resource centres and many other institutes relating to education across Sri Lanka. Which of the following network types is most appropriate for School Net?

Amal has connected his mobile phone to a notebook computer without using physical cables to transfer some photographs from his mobile phone to the notebook computer. Which of the following types of communication media is/are used for this purpose?

A – Guided media B – Unguided media C – Bounded media D – Unbounded media

Consider the following truth table :

Which of the following is represented by the symbol ∇ ?

Which of the following represents an input device, a storage device and an output device respectively?