Which option is a desktop sharing application, used across a variety of platforms, with default TCP ports 5800/5801 and 5900/5901?
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A. B. C. D.C.
The correct answer to the question is option C - VNC.
VNC stands for Virtual Network Computing, and it is a desktop sharing application that allows users to remotely control and access a computer desktop from another device or location. VNC is a cross-platform application, meaning it can be used on various operating systems such as Windows, macOS, Linux, and even on mobile devices.
The default TCP ports used by VNC are 5800/5801 and 5900/5901. The VNC server listens on these ports, and the VNC client connects to these ports to establish a remote connection.
When a user initiates a VNC connection, the VNC server software on the remote computer captures the desktop screen, compresses the images, and sends them over the network to the VNC client software running on the local computer. The client software then decompresses the images and displays the remote desktop on the local computer.
VNC provides several authentication methods, such as password authentication and public key authentication, to ensure secure remote access. It also offers encryption of data transmitted over the network to prevent eavesdropping and data interception.
In conclusion, VNC is a desktop sharing application that enables remote access and control of a computer desktop from another device or location. It uses default TCP ports 5800/5801 and 5900/5901, and provides secure authentication and encryption features.