Answer:
The "service password-encryption" global configuration command encrypts passwords configured before and after the command is issued.
Explanation:
A switch is an intermediate network device that is used to transfer frames to nodes on its collision domain. It operates in the Data-link layer of the OSI model.
Switches uses media address control (MAC) table, containing the MAC addresses of the nodes in the network, to determine the destination of nodes.
In the global configuration mode in a switch, the password and other protocols are configured. The service password-encryption command in the global execution mode encrypts passwords configured before and after the command.
Answer: Sounds like you are talking about “Distributed memory systems” which use multiple computers to solve a common problem, with computation distributed among the connected computers (nodes) and using message-passing to communicate between the nodes.