350-601 Question #665: Real Exam Question with Answer & Explanation

The correct answer is C: spanning-tree bpduguard enable. To prevent loops when new switches are connected, you should enable BPDU Guard on the interface. This feature is typically used on interfaces that connect to end devices (such as hosts), not other switches. Enabling BPDU Guard (spanning-tree bpduguard enable) ensures that if a BP

Network

Question

A network engineer must prevent loops from occurring on a Cisco Nexus 9300 Series Switch when new switches are connected. The interface Ethernet1/2 must be used for host connectivity. Which configuration must be applied to Ethernet1/2?

Options

Aspanning-tree guard loop
Bspanning-tree loopguard default
Cspanning-tree bpduguard enable
Dspanning-tree bpdufilter enable

Explanation

To prevent loops when new switches are connected, you should enable BPDU Guard on the interface. This feature is typically used on interfaces that connect to end devices (such as hosts), not other switches. Enabling BPDU Guard (spanning-tree bpduguard enable) ensures that if a BPDU is received on a port where it should not be, the port is immediately put into an "errdisable" state, effectively preventing any potential loop caused by an unexpected switch

Topics

#Spanning Tree Protocol#BPDU Guard#Network Loop Prevention#Cisco Nexus

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