Your first example with RQ1 and RQ2 will execute them simultaneously.
One might take longer to finish, but that is dependent on the *server*, as well as the network. They still execute at the same time.
Your first example with RQ1 and RQ2 will execute them simultaneously.
One might take longer to finish, but that is dependent on the *server*, as well as the network. They still execute at the same time.