What is the correct answer to this question? And why?

List a few alternative options and input and output over the standerd keyboard and monitor. explain their functioning in details.

What is domain name system (dns)? allows dynamic ip address allocation so users do not have to have a preconfigured ip address to use the network converts ip addresses into domains, or identifying labels that use a variety of recognizable naming conventions the efficient coexistence of telephone, video, and data communication within a single network, offering convenience and flexibility not possible with separate infrastructures the integration of communication channels into a single service

Which component is typically used as an amplifier a battery a transistor a microchip a diode