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Which Azure VM Scale Set feature should an architect recommend to automatically scale capacity based on a CloudWatch-like metric (e.g. average CPU at 60%) and self-heal failed instances?
AAzure DNS
BVM Scale Sets with autoscale rules + health probes + automatic instance repair
CManually launching VMs during peak
DAzure Bastion
Answer & Solution
Correct answer: B. VM Scale Sets with autoscale rules + health probes + automatic instance repair
VMSS + autoscale + automatic repair is Azure's reactive-scale + self-heal pattern (per AZ-305 §3 HA + §4 compute). The other options don't autoscale.
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