Respuesta :
Out of the given options, the duty of a network administrator is designing the computer network.
C. Designing the computer network
Explanation:
The name is suggestive enough and clearly references the duties and responsibilities of the network administrator. The network administrator works around the designing, development, and maintenance of the computer network.
The network administrator manages the administration activities of the network rather than running a sales meeting or installing a new light or checking the employee applications which are completely irrelevant in accordance with the concerned post.
The network administrator also performs managerial functions for the staff working under him.