Go back to 70-643 - TS: Windows Server 2008 Applications, Configuring

Question :-

Your network contains a Web server named Server1 that runs Windows Server 2008 R2. You modify the configuration of Server1. You need to restore the previous Web server configuration. What should you run?
appcmd.exe
iisback.vbs
iisext.vbs
iisreset.exe

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