Implementing and
Administering Cisco
Solutions
,1.Which command entered on a switch configured with Rapid PVST* listens and
learns for a specific time period?
A. switch(config)#spanning-tree vlan 1 max-age 6
B. switch(config)#spanning-tree vlan 1 hello-time 10
C. switch(config)#spanning-tree vlan 1 priority 4096
D. switch(config)#spanning-tree vlan 1 forward-time 20
Answer: D
Explanation:
Forward time: Determines how long each of the listening and learning states last
before the port begins forwarding.
Switch(config)# [ no ] spanning-tree vlan vlan_ID forward-time forward_time
Configures the forward time of a VLAN. The forward_time value can be from 4 to 30
seconds. https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/15-02
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SG/configuration/guide/config/spantree.html#56177
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All routers in the network are configured R2 must be the DR. After the engineer
,connected the devices, R1 was elected as the DR.
Which command sequence must be configure on R2 to Be elected as the DR in the
network?
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D. Option D
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Answer: B
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3.Refer to Exhibit.
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Routers R1 and R2 have been configured with their respective LAN interfaces The
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two circuits are operational and reachable across WAN.
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Which command set establishes failover redundancy if the primary circuit goes down?
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