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Exam BL0-100 topic 1 question 15 discussion

Actual exam question from Nokia's BL0-100
Question #: 15
Topic #: 1
[All BL0-100 Questions]

What is the purpose of the secondary authentication feature?

  • A. To improve authentication between the User Equipment and the 5G Core.
  • B. To improve authentication when connecting to different network slices.
  • C. To authenticate the User Equipment coming from an untrusted non-3GPP access (N3IWF).
  • D. To authenticate the User Equipment with an external data network.
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Suggested Answer: A 🗳️
by 1d95f23 at May 21, 2025, 6:54 a.m.

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1d95f23
3 weeks, 4 days ago
Selected Answer: D
xplanation: Secondary authentication in 5G is used after the UE (User Equipment) has been authenticated by the 5G core network. Its main purpose is to enable the UE to authenticate with an external Data Network (DN) or service provider, such as: Enterprise networks Public internet services requiring credentials Application-specific platforms This process typically uses EAP (Extensible Authentication Protocol) and is handled during PDU session establishment. Primary authentication ensures the UE is authorized to access the 5G network. Secondary authentication allows additional access control to external services beyond the mobile network.
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