Command-line tools are essential for networking professionals as they provide a direct and powerful interface to interact with network devices and troubleshoot issues efficiently. The command line allows for precise control over networking equipment, enabling professionals to configure, monitor, and diagnose network components with specific commands. Tools like Ping and Traceroute provide valuable insights into network connectivity and help identify potential issues along the route. Command-line interfaces are often used in scripting and automation, allowing repetitive tasks to be executed programmatically, saving time and reducing the likelihood of errors. Furthermore, the command line is an integral part of network devices, especially routers and switches, offering a direct and reliable means to manage and maintain the network infrastructure. Mastery of command-line tools is a fundamental skill for network professionals, providing them with a versatile and efficient way to navigate and control complex networking environments.