Microsoft 365 Endpoint Administrator Associate MD-102 Practice Question
You create a Windows Autopilot deployment profile in Microsoft Intune and configure the device name template as "SALES-%SERIAL%". A new laptop with the firmware serial number 123456789ABCDE is enrolled by using this profile. In the Intune console, the computer appears with the name "SALES-12345678". Why was the serial-number portion shortened?
Windows restricts computer names to 15 characters, so Intune truncated the serial-number portion to keep the total length within that limit.
The prefix SALES- exceeds the maximum allowed length for an Autopilot device-name prefix, so Intune removed characters from it.
The serial number contained unsupported symbols, so Intune substituted any non-numeric characters with zeros.
Autopilot deployment profiles replace %SERIAL% with a fixed eight-character string by design.
Windows continues to enforce the legacy 15-character NetBIOS limit for host names. The prefix "SALES-" uses six characters, so Intune can keep only nine characters from the %SERIAL% variable. Because the generated name "SALES-123456789ABCDE" would be 19 characters long, Intune preserves the entire prefix and truncates the excess characters from the variable portion, resulting in "SALES-12345678". The behavior is not due to an invalid variable or unsupported characters.
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What is the Windows 15-character NetBIOS limit?
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How does Intune handle device naming templates with %SERIAL%?
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Can custom prefixes for Autopilot device names exceed Windows' character limit?
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Microsoft 365 Endpoint Administrator Associate MD-102
Manage and maintain devices
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