SK0-004 · Question #789
An administrator needs to install 20 new servers via PXE. Which of the following must be available on the network to complete this task?
The correct answer is A. TFTP server. PXE boot relies on TFTP to transfer the boot image and configuration files from a server to the client, so a TFTP server is a mandatory network requirement.
Question
An administrator needs to install 20 new servers via PXE. Which of the following must be available on the network to complete this task?
Options
- ATFTP server
- BDNS server
- CSFTP server
- DSCP server
How the community answered
(17 responses)- A88% (15)
- C6% (1)
- D6% (1)
Why each option
PXE boot relies on TFTP to transfer the boot image and configuration files from a server to the client, so a TFTP server is a mandatory network requirement.
The PXE (Preboot Execution Environment) process works by having a client receive an IP address via DHCP and then contact a TFTP server to download the Network Bootstrap Program (NBP) and boot image. TFTP's simple, lightweight protocol is the defined transport mechanism in the PXE specification, making the TFTP server an absolute prerequisite for network-based OS installation.
DNS resolves hostnames to IP addresses and is not part of the core PXE boot sequence, which uses IP addresses directly obtained from DHCP.
SFTP is a secure file transfer protocol layered over SSH and is not part of the PXE specification or its boot process.
SCP is used for secure file copying over SSH and plays no role in the PXE network boot process.
Concept tested: PXE boot network requirements and TFTP dependency
Source: https://learn.microsoft.com/en-us/windows-server/networking/technologies/dhcp/dhcp-deploy-wds-dhcp
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