CompTIA Network+ N10-006 Q488

A network administrator at a large campus has determined that many connectivity issues reported in the residence halls are due to residents connecting the LAN side of personal routers to the campus network.
Which of the following can be implemented to resolve this problem?

A. Loop protection
B. Disable the default VLAN
C. DHCP snooping
D. Disabling multicast

Correct Answer: C