[单选]
An attacker is launching a DoS attack on the Company network using a hacking tool designed to exhaust the IP address space available from the DHCP servers for a period of time.
Which procedure would best defend against this type of attack？（）

A . Configure only trusted interfaces with root guard.
B . Implement private VLANs （PVLANs） to carry only user traffic.
C . Implement private VLANs （PVLANs） to carry only DHCP traffic.
D . Configure only untrusted interfaces with root guard.
E . Configure DHCP spoofing on all ports that connect untrusted clients.
F . Configure DHCP snooping only on ports that connect trusted DHCP servers.
G . None of the other alternatives apply

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An attacker is launching a DoS attack on the Company network using a hacking tool designed to exhaust the IP address space available from the DHCP servers for a period of time.
Which procedure would best defend against this type of attack？（）

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[单选] An attacker is launching a DoS attack on the Company network using a hacking tool designed to exhaust the IP address space available from the DHCP servers for a period of time. Which procedure would best defend against this type of attack？ （）

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[单选]
An attacker is launching a DoS attack on the Company network using a hacking tool designed to exhaust the IP address space available from the DHCP servers for a period of time.
Which procedure would best defend against this type of attack？（）