You have high CPU ready time on a Hyper-V host. What causes that and how do you resolve it?
A VM shows poor disk performance but host disks are fine. What do you check next?
How would you identify which VM is over-consuming memory or causing ballooning?
Explain Dynamic Memory: what metrics determine VM memory pressure?
You suspect NUMA imbalance. How do you detect and fix that?
A VM migration fails midway — how do you diagnose live migration logs?
What are common causes of “Not enough memory to start VM” on a cluster with free memory?
How do you monitor storage IOPS per VM in Hyper-V?
Explain how to use Performance Monitor or Resource Monitor to detect bottlenecks in Hyper-V hosts.
You notice one VM affecting others’ performance on the same host — how can you enforce fair resource usage?
How do you automate health checks for Hyper-V using PowerShell?
What’s your recovery plan if an entire Hyper-V host becomes unbootable with critical VMs?