Multiple choice technology

How do you flush DNS your local machine?

  1. flush

  2. flushdns

  3. ipconfig /flushdns

  4. This cannot be done
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

On Windows systems, 'ipconfig /flushdns' clears the local DNS resolver cache. This is useful when DNS changes aren't reflecting immediately or troubleshooting DNS issues. 'flush' and 'flushdns' are not valid standalone commands. The capability exists on Windows, Linux (systemd-resolve --flush-caches), and macOS (sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder).

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