Answer:

To determine whether the configuration is initialized or if a duplicate IP address is configured on an NT workstation, the appropriate utility to use is ipconfig.exe.

Explanation:

The ipconfig utility is a command-line tool that displays the current configuration of all network interfaces on a Windows NT workstation. It provides detailed information about the IP configuration, including the IP address, subnet mask, default gateway, and DNS server addresses.

Here's why ipconfig is the correct choice for the given scenario:

1. Checking Configuration Initialization:
When a computer starts up, it needs to initialize its network configuration. The ipconfig utility allows you to verify whether the IP configuration has been properly initialized. By running the command ipconfig /all, you can view the current IP configuration of all network interfaces on your NT workstation. If the IP address, subnet mask, default gateway, and DNS server addresses are displayed correctly, it indicates that the configuration has been initialized.

2. Detecting Duplicate IP Address:
If a duplicate IP address is configured on the network, it can cause conflicts and connectivity issues. The ipconfig utility can help you identify if a duplicate IP address is configured on your NT workstation. When you run the command ipconfig /all, it displays the IP address assigned to each network interface. If there is a duplicate IP address assigned to multiple interfaces, it indicates a configuration issue.

Other Options:
- arp.exe: The Address Resolution Protocol (ARP) utility is used to display and modify the IP-to-physical address translation tables. While it can help in troubleshooting network connectivity issues, it is not specifically designed to determine configuration initialization or duplicate IP address problems.
- ping.exe: The ping utility is used to test network connectivity by sending ICMP echo requests to a specific IP address. It can help in diagnosing network connectivity issues, but it does not provide information about IP configuration or duplicate IP addresses.
- netstat.exe: The netstat utility displays active network connections, routing tables, and various network statistics. While it can be useful for troubleshooting network issues, it does not directly help in determining IP configuration initialization or duplicate IP address problems.

Therefore, the most appropriate utility to use in this scenario is ipconfig.exe as it provides detailed information about the IP configuration and helps identify configuration initialization or duplicate IP address issues.