An administrator needs to remotely change the computer name of a host server. The server does not have a GUI. Which of the following should the administrator use?

KVM (Keyboard, Video, Mouse) over IP provides out-of-band hardware console access typically used for BIOS-level or pre-boot management, and is not the preferred tool for OS-level administrative tasks like renaming a running server.

PKI (Public Key Infrastructure) is a framework for managing digital certificates and asymmetric encryption keys, not a remote access or system management tool.

VNC (Virtual Network Computing) requires an active graphical desktop environment running on the target system, making it non-functional on a server that has no GUI installed.

When connecting via RDP to a Windows Server Core host that has no Desktop Experience installed, the administrator receives a command-prompt or PowerShell session rather than a full graphical desktop. From this session, commands such as Rename-Computer in PowerShell or netdom.exe can be executed to change the server's computer name and restart it remotely. RDP is the standard built-in remote management protocol for Windows servers and functions fully on GUI-less Server Core deployments.