When troubleshooting network problems, where would a network administrator find the configuration information, such as the computer names and the IP addresses that are used?

When troubleshooting network problems, a network administrator can find the configuration information, such as the computer names and the IP addresses that are used, in several places:

1. Network Configuration Files: On most operating systems, network configuration is stored in specific files. For example, on a Linux system, the "/etc/network/interfaces" file contains network configuration information.

2. Command Line Interface (CLI): Using commands like "ipconfig" on Windows or "ifconfig" on Unix-based systems can display the network configuration of the system, including IP addresses.

3. Network and Sharing Center (Windows): On Windows machines, the Network and Sharing Center provides a graphical interface for viewing and changing network settings.

4. System Preferences (Mac): On Macs, the Network pane in System Preferences contains this information.

5. Router Configuration Page: If the administrator has access to the router, they can log into the router's configuration page to see the IP addresses of all connected devices.

6. Domain Name System (DNS) Server: If the network uses a DNS server, the server will have a record of all computer names and their corresponding IP addresses.

7. Dynamic Host Configuration Protocol (DHCP) Server: If the network uses a DHCP server, the server will have a record of all IP addresses it has assigned.

Remember, the exact method will depend on the specific network setup and the operating system in use.