Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon receipt of a BPDU?

IT Questions Bank › Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon receipt of a BPDU?

Question:
Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon receipt of a BPDU?

BackboneFast
UplinkFast
Root Guard
BPDU Guard
BPDU Filter

Explanation: We only enable PortFast feature on access ports (ports connected to end stations). But if someone does not know he can accidentally plug that port to another switch and a loop may occur when BPDUs are being transmitted and received on these ports. With BPDU Guard, when a PortFast receives a BPDU, it will be shut down to prevent a loop.

Exam with this question: CCNA v3.0 (200-125) Study Guide – Exam Dumps