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Question ID 15174

Which statement about port isolation configuration is false?

Option A

Port isolation can be used for Layer 2 isolation.

Option B

In port isolation mode, ports are isolated at Layer 2 but can communicate at Layer 3 by default.

Option C

Before the port isolation function takes effect on an interface, the port isolation function must be enabled first.

Option D

The port-isolate enable command can run in the system view.

Correct Answer D
Description
Update Date and Time 2017-11-22 06:19:02

Question ID 15175

Which statements about VLAN mapping are true?(Select 2 Answers)

Option A

 When sending a frame from the local VLAN, the switch replaces the VLAN tag in the frame with another VLAN tag.

Option B

When receiving a frame from another VLAN, the switch replaces the VLAN tag of the frame with the local VLAN tag.

Option C

When an interface receives a frame from another VLAN, it does not replace the VLAN tag of the frame. The interface replaces the VLAN tag of the frame with another VLAN tag only when it sends a frame.

Option D

The interface replaces the VLAN tag of only the frame received from another VLAN, but does not change the VLAN tag of the frame it sends out.

Correct Answer A,B
Description
Update Date and Time 2017-11-22 06:19:43