Which aspects of a project do project makers oversee?

Consider the simple 3-station assembly line illustrated below, where the 2 machines at station 1 are parallel, i.e., the product only needs to go through one of the 2 machines before proceeding to station 2.what is the throughput time of this process?

Anetwork security application that prevents access between a private and trusted network and other untrusted networks

Plz ( which is an example of a good url?