Which command is required for root guard for Cisco device to place ID:2071948x? (Where x is the last digit ID)

exams 300-115 300-115 exam 0 Comments

Which command is required for root guard for Cisco device to place ID:2071948x? (Where x is the last digit ID)
A . (config if)# spanning-tree guard root
B . (config)# spanning-tree guard root
C . (config-if)# spanning-tree root guard
D . (config)# spanning-tree root guard

Answer: A