单选题Switch A is configured with VLAN 105 and 106. Switch Bis configured with VLAN 105 and 107.Both switches are connected with a fiber cable. In order for packets from all VLANs to cross thefiber cable, which of the following configurations MUST be present? （）AReverse ARPBFull duplex on the fiber linkCPoED802.1q trunking
单选题
Switch A is configured with VLAN 105 and 106. Switch Bis configured with VLAN 105 and 107.Both switches are connected with a fiber cable. In order for packets from all VLANs to cross thefiber cable, which of the following configurations MUST be present? （）
A
Reverse ARP
B
Full duplex on the fiber link
C
PoE
D
802.1q trunking
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单选题A switch port on TK1 is being configured to support 802.1Q trunking. Which of the following are true about 802.1Q trunking？（）ABoth switches must be in the same VTP domain.BThe encapsulation type of both ends of the trunk does not have to match.CThe native VLAN on both ends of the trunk must be VLAN 1.D802.1Q trunking can only be configured on a Layer 2 port.EIn 802.1Q trunking， all VLAN packets are tagged on the trunk link， except the native VLAN.
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单选题Which MST configuration statement is correct？ （）A MST configurations can be propagated to other switches using VTP.B After MST is configured on a Switch， PVST+ operations will also be enabled by default.C MST configurations must be manually configured on each switch within the MST region.D MST configurations only need to be manually configured on the Root Bridge.E MST configurations are entered using the VLAN Database mode on Cisco Catalyst switches.
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