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350-401 Practice Question: Drag and drop the steps of NFV MANO…
Drag and drop the steps of NFV MANO (VNFM/NFVO/VIM) interaction flow into the correct order, from first to last.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
NFVO receives service request from OSS/BSS
The interaction flow begins with the NFVO receiving a service request from OSS/BSS. The NFVO then requests resource allocation from the VIM. The VIM allocates resources and reports back. Next, the NFVO instructs the VNFM to instantiate the VNF. Finally, the VNFM configures and starts the VNF on the allocated resources.
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Last reviewed: Jun 18, 2026
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