Science and Technology › Emerging TechXIT
Consider the following statements:
A digital signature is
1. an electronic record that identifies the certifying authority issuing it
2. used to serve as a proof of identity of an individual to access information or server on Internet.
3. an electronic method of signing an electronic document and ensuring that the original content is unchanged
Which of the statements given above is / are correct?
(C)
Science and Technology › Emerging TechXIT
In the context of digital technologies for entertainment, consider the following statements:
1. In Augmented Reality (AR) , a simulated environment is created and the physical world is completely shut out.
2. In Virtual Reality (VR), images generated from a computer are projected onto real-life objects or surroundings.
3. AR allows individuals to be present in the world and improves the experience using the camera of smart-phone or PC.
4. VR closes the world, and transposes an individual, providing complete immersion experience.
Which of the statements given above is / are correct?
(B)