Questions: The technology that uses cameras, microphones, displays, speakers, and software to allow users to both see and hear each other is called video conferencing

The answer is the first one: video conferencing.

Explanation for each option:

1. Video conferencing: This is the correct answer. Video conferencing technology uses cameras, microphones, displays, speakers, and software to enable users to see and hear each other in real-time, facilitating virtual meetings and communication.

2. Linear management: This is incorrect. Linear management refers to a sequential approach to managing tasks or processes, and it does not involve the use of cameras, microphones, displays, or speakers for communication.

3. Multicore processing: This is incorrect. Multicore processing refers to a computer's ability to use multiple CPU cores to perform tasks more efficiently. It is related to computing performance rather than communication technology.

4. Parallel processing: This is incorrect. Parallel processing involves dividing a computational task into smaller sub-tasks that can be processed simultaneously by multiple processors. Like multicore processing, it is related to computing performance and not to communication technology.

Summary: The technology that uses cameras, microphones, displays, speakers, and software to allow users to both see and hear each other is called video conferencing.