The phrase "administer a network" is correct and usable in written English.
It can be used in contexts related to managing or overseeing a computer network, typically in IT or technical discussions.
Example: "As the network administrator, my primary responsibility is to administer a network to ensure its security and efficiency."
Alternatives: "manage a network" or "oversee a network".
For instance, on the technical front, a hacker might program, administer a network, or tinker with hardware.
In Australia, according to the Department of Education, Employment and Workplace Relations (DEEWR): FDC services support and administer a network of FDC carers who provide flexible care and developmental activities generally in their own homes for other people's children.
The U.S. Geological Survey, state officials and seismologists from UC Berkeley and Caltech administer a network of hundreds of sensors — concentrated mainly in the Bay Area and in Los Angeles — that detect seismic waves seconds before earthquakes are felt.
It publishes journals and books, sponsors fellowships and administers a network of 80 conservative college newspapers.
Through its culture, arts, and parks committee, Seattle's city council administers a network of more than 70 public parks.
Troika is under the spotlight because staff from this independent division administered a network of shell companies that appear to have mixed legitimate and illegitimate money.
At the time we started Sprite there were no good network file systems (even NFS didn't exist yet) and administering a network of workstations was a nightmare.
NYSG, a cooperative program of Cornell University and the State University of New York, administers a network of integrated research and education services around the state.
A FDC scheme supports and administers a network of carers, by monitoring the standard of care provided, and providing professional advice.
The federal government administers a large network of museums: the Smithsonian Institution.
