What is the command to start a designated service in Linux?

The correct command to start a designated service in Linux is 'service start'. This command is used in several distributions to manage services (or daemons) that are part of the operating system. By using the 'service' command followed by the service name and the action 'start', you can initiate the desired service. This is an essential part of system administration in Linux, enabling users to control background processes that provide various functionalities, such as web servers, database servers, and more.

The other command options provided do not correctly reflect the syntax used in Linux for service management. 'Service run', 'service execute', and 'service boot' are not valid commands in the context of starting services. The proper use of 'service start' is foundational for system management and demonstrates a key aspect of handling services in a Linux environment.