PowerTip: Use PowerShell to Check Status of Client DNS Cache
Summary: Use Windows PowerShell 3.0 in Windows 8 to check the status of your client DNS cache.
How can I use Windows PowerShell 3.0 in Windows 8 to inspect the DNS cache on my computer for entries that do not have records?
Use the Get-DNSClientCache function, pipe the results to a Where-Object cmdlet, and look for a status that is not equal to 0 (which means success):
Get-DnsClientCache | where status -ne 0