Final answer:
The task of answering e-mails from potential customers is typically not a responsibility of a system administrator, whose main duties are related to system and network maintenance.
Step-by-step explanation:
The question asks which of the following would NOT be the responsibility of the system administrator. Among the options provided, the role that typically does not fall under the responsibilities of a system administrator is (2) Answering e-mails from potential customers. The primary duties of a system administrator are related to maintaining and operating computer systems and networks, such as:
- Installing new hardware and software
- Creating new user accounts
- Providing support to users
While system administrators do engage in communication related to technical issues, corresponding with potential customers is generally part of sales or customer service roles, not IT administration.