350-601 · Question #137
An engineer needs to Implement a solution that prevents loops from occurring accidentally by connecting a switch to interface Ethemet1/1. The port Is designated to be used tor host connectivity…
The correct answer is A. switch# configure terminal. The correct configuration (A) implements Spanning Tree Protocol (STP) edge port features to prevent accidental loops on a host-facing port. On Cisco Nexus switches, the appropriate commands include 'spanning-tree port type edge' (equivalent to PortFast on Catalyst) combined…
Question
An engineer needs to Implement a solution that prevents loops from occurring accidentally by connecting a switch to interface Ethemet1/1. The port Is designated to be used tor host connectivity. What configuration should be implemented?
Options
- Aswitch# configure terminal
- Bswitch# configure terminal
- Cswitch# configure terminal
- Dswitch# configure terminal
How the community answered
(18 responses)- A78% (14)
- B6% (1)
- C11% (2)
- D6% (1)
Explanation
The correct configuration (A) implements Spanning Tree Protocol (STP) edge port features to prevent accidental loops on a host-facing port. On Cisco Nexus switches, the appropriate commands include 'spanning-tree port type edge' (equivalent to PortFast on Catalyst) combined with 'spanning-tree bpduguard enable'. The 'port type edge' setting causes the interface to immediately transition to forwarding state without going through the STP listening/learning states, which is appropriate for end-host connections. BPDU Guard disables the port if a BPDU is received - meaning if someone accidentally connects a switch instead of a host, the port shuts down (err-disable), preventing a loop. The exhibit differentiates option A from the others by including both of these critical sub-commands.
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