Your network contains an Active Directory domain named contoso.com. The domain contains a DHCP server named Server1that

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Your network contains an Active Directory domain named contoso.com. The domain contains a DHCP server named Server1that runs Windows Server 2012 R2.
You create a DHCP scope named Scope1. The scope has a start address of 192.168.1.10, an end address of 192.168.1.50, and a subnet mask of
255.255.255.192.
You need to ensure that Scope1 has a subnet mask of 255.255.255.0.
What should you do first?

A. From Windows PowerShell, run the Remove-DhcpServerv4PolicyIPRange cmdlet.
B. From the DHCP console, modify the Scope Options of Scope1.
C. From Windows PowerShell, run the Remove-DhcpServerv4Scope cmdlet.
D. From Windows PowerShell, run the Set-DhcpServerv4Scope cmdlet.
E. From the DHCP console, modify the properties of Scope1.
F. From Windows PowerShell, run the Set-DhcpServerv4Policy cmdlet.