Final answer:
First-generation e-commerce activities typically create a Client/Server network, and a software developer would likely work in the tertiary or quaternary sector of the economy.
Step-by-step explanation:
The sequence of first-generation e-commerce activities typically provides a Client/Server network. In the context of e-commerce, this type of network allows web servers to deliver web pages to the user's computer, which acts as the client. To address the similar question regarding the economic sector for a software developer, a software developer would most likely work in the tertiary or quaternary sector of the economy. The tertiary sector includes service-oriented jobs, while the quaternary sector is knowledge-based and includes information technology work. Being a highly specialized and knowledge-intensive field, software development is often categorized as quaternary.