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LFCS · Question #584

Which of the following statements are true when creating NETBIOS names? (Select TWO correct answers.)

The correct answer is B. You can use a '.' in a NETBIOS name. C. You can use an '_' (underscore) in a NETBIOS name. NetBIOS names can contain a period ('.') and an underscore ('_'), and are typically limited to 15 characters for the name itself.

Submitted by joshua94· Apr 18, 2026Networking

Question

Which of the following statements are true when creating NETBIOS names? (Select TWO correct answers.)

Options

  • ANETBIOS names can only use alphanumeric characters.
  • BYou can use a '.' in a NETBIOS name.
  • CYou can use an '_' (underscore) in a NETBIOS name.
  • DNETBIOS names must be UPPERCASE
  • ENETBIOS names can be a maximum of 32 characters

How the community answered

(29 responses)
  • A
    3% (1)
  • B
    86% (25)
  • D
    3% (1)
  • E
    7% (2)

Why each option

NetBIOS names can contain a period ('.') and an underscore ('_'), and are typically limited to 15 characters for the name itself.

ANETBIOS names can only use alphanumeric characters.

NetBIOS names can use other characters besides alphanumeric, such as hyphens, periods, and underscores.

BYou can use a '.' in a NETBIOS name.Correct

NetBIOS names can include a period ('.') character, which is often used in fully qualified domain names (FQDNs) when resolving NetBIOS names.

CYou can use an '_' (underscore) in a NETBIOS name.Correct

NetBIOS names are allowed to contain the underscore ('_') character as part of their naming convention.

DNETBIOS names must be UPPERCASE

While traditionally often displayed in uppercase, NetBIOS name resolution is case-insensitive, and they do not strictly have to be uppercase.

ENETBIOS names can be a maximum of 32 characters

NetBIOS names are typically 16 bytes, with the last byte representing the resource type, leaving 15 characters for the actual name, not 32.

Concept tested: NetBIOS naming conventions

Source: https://support.microsoft.com/en-us/topic/netbios-names-allowed-characters-3375b4b1-8e9a-251f-506e-827d002f23b2

Topics

#NETBIOS#Naming Conventions#Network Protocols

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