单项选择题

Which of the following conditions guarantees that a broadcast storm cannot occur？（）

A.a native VLAN mismatch on either side of an 802.1Q link
B.BPDU filter configured on a link to another switch
C.Spanning Tree Protocol enabled on both Layer 2 and multilayer switches
D.PortFast enabled on all access and trunk ports

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单项选择题

Which statement is true regarding the Port Aggregation Protocol？（）

A.Configuration changes made on the port-channel interface apply to all physical ports assigned to the portchannel interface.
B.Configuration changes made on a physical port that is a member of a port-channel interface apply to the port-channel interface.
C.Configuration changes are not permitted with Port Aggregation Protocol； instead， the standardized Link Aggregation Control Protocol should be used if configuration changes are required.
D.The physical port must first be disassociated from the port-channel interface before any configuration changes can be made.

单项选择题

Which command alone will disable trunking on a Layer 2 switch port？（）

A.no switchport trunk native vlan vlan-id
B.switchport nonegotiate
C.no switchport mode dynamic desirable
D.switchport mode access

单项选择题

Which configuration option will cause the link between two Cisco 3600 Series Multiservice Platforms to become a functional trunk？（）

A.switchport dynamic auto switchport dynamic auto
B.switchport access vlan 10 switchport mode dynamic desireable
C.switchport mode trunk switchport nonegotiate
D.Leave both ports with the default trunk settings