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350-401 Practice Question: Drag and drop the steps of VNF scaling up and…
Drag and drop the steps of VNF scaling up and scaling out 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
VNFM monitors metrics and detects threshold breach
Scaling begins with the VNFM monitoring performance metrics against thresholds. When a threshold is exceeded, the VNFM triggers a scaling action. For scale-up, additional resources are allocated to the existing VNF instance. For scale-out, a new VNF instance is instantiated. Finally, load balancing is updated to distribute traffic across all instances.
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Last reviewed: Jun 18, 2026
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