210-260 Question #73: Real Exam Question with Answer & Explanation

The correct answer is B: The switch could become the root bridge.. The BPDU guard feature is designed to allow network designers to keep the active network topology predictable. BPDU guard is used to protect the switched network from the problems that may be caused by the receipt of BPDUs on ports that should not be receiving them. The receipt o

Question

An attacker installs a rogue switch that sends superior BPDUs on your network. What is a possible result of this activity?

Options

AThe switch could offer fake DHCP addresses.
BThe switch could become the root bridge.
CThe switch could be allowed to join the VTP domain
DThe switch could become a transparent bridge.

Explanation

The BPDU guard feature is designed to allow network designers to keep the active network topology predictable. BPDU guard is used to protect the switched network from the problems that may be caused by the receipt of BPDUs on ports that should not be receiving them. The receipt of unexpected BPDUs may be accidental or may be part of an unauthorized attempt to add a switch to the network. BPDU guard is best deployed toward user-facing ports to prevent rogue switch network extensions by an attacker.

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