<span>It is false that live preview is available on a touch screen. Life preview refers to cameras mostly, and to the fact that its display screen can be used as a viewfinder. Viewfinder is what you look through when you are using a camera to take a photo, or to focus on something. So, no, touch screen devices do not have this feature available, only the "old-school" cameras do.</span>
Answer:
A wave that has been digitized can be played back as a wave over and over, and it will be the same every time. For that reason, digital signals are a very reliable way to record information—as long as the numbers in the digital signal don’t change, the information can be reproduced exactly over and over again.
Explanation:
Umm
This is to bunch of questions..
Answer:Network policy and access services
Explanation: IEEE 802.1X is standard which stands for Port-based Network access control (PNAC). The authentication process of IEEE 802.1X is accessing should be managed through server, presence security factor , policies of network are managed and supported by network policy server .
The device that want to be connected with LAN or wireless LAN get though this authentication process.Other options are incorrect because files services, web servers and active directory domain services are not the factor that considered for authentication in IEEE 802.1X.
