READ Free Dumps For Cisco- 200-125

Question ID 13524	Which statement about VLAN operation on Cisco Catalyst switches is true?
Option A	When a packet is received from an 802.1Q trunk, the VLAN ID can be determined from the source MAC address and the MAC address table.
Option B	Unknown unicast frames are retransmitted only to the ports that belong to the same VLAN.
Option C	Broadcast and multicast frames are retransmitted to ports that are configured on different VLAN.
Option D	Ports between switches should be configured in access mode so that VLANs can span across the ports.
Correct Answer	B

Explanation Explanation: Each VLAN resides in its own broadcast domain, so incoming frames with unknown destinations are only transmitted to ports that reside in the same VLAN as the incoming frame.

Question ID 13525	Which command enables RSTP on a switch?
Option A	spanning-tree uplinkfast
Option B	spanning-tree mode rapid-pvst
Option C	spanning-tree backbonefast
Option D	spanning-tree mode mst
Correct Answer	B

Explanation Explanation: Rapid Spanning Tree Protocol (RSTP) is an enhancement of the original STP 802.1D protocol. The RSTP 802.1w protocol is an IEEE open implementation. Cisco has its own proprietary implementation of RSTP, that includes the benefits of its Per-VLAN spanning tree protocols, called Rapid-PVST+. To activate the Rapid-PVST+ protocol: switch(config)#spanning-tree mode rapid-pvst

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