What is the most effective method for installing an operating system on a remote system using PXE?

Using TFTP (Trivial File Transfer Protocol) is the most effective method for installing an operating system on a remote system using PXE (Preboot Execution Environment). PXE is a network booting protocol that enables computers to start up and load an operating system over a network connection prior to loading an operating system from local storage.

TFTP is specifically designed for booting purposes and is lightweight in nature, which makes it ideal for environments where fast booting is prioritized. It operates over User Datagram Protocol (UDP), allowing for faster transmission of files needed for the initial boot process. TFTP does not require the overhead of establishing a connection, making it suitable for scenarios where simplicity and the ability to quickly transfer small Bootstrap files and OS images are critical.

When utilizing PXE, the process generally involves the client machine requesting a boot file from a PXE server via DHCP and then using TFTP to retrieve that file, which allows it to initiate the installation of the operating system. Other protocols like HTTP, FTP, and SFTP are not optimized for the specific needs of a PXE environment. For instance, HTTP and FTP are more complex protocols that involve connection setups and are generally not suitable for the lightweight demands of the PXE boot process. SFTP