Working knowledge and practical experience with TCP/IP, IP addressing and subnetting, Layer 2 and Layer 3 switching, VLANs and network segmentation, routing concepts and protocols, DHCP, DNS, enterprise wireless networking, network monitoring and diagnostics, VPN and remote-access concepts, network hardware, and network documentation. CITY OF MONROE JOB TITLE: Network Administrator DEPARTMENT: Administration JOB CLASS NUMBER: 1443 DIVISION: Information Technology DEFINITION/DISTINGUISHING CHARACTERISTICS OF JOB: The Network Administrator is responsible for the administration, operation, maintenance, performance, security, and reliability of the City of Monroe 's network and related technology infrastructure.