Which interface type requires no routing or switching but applies Security or NAT policy rules before passing allowed traffic?

Which interface type requires no routing or switching but applies Security or NAT policy rules before passing allowed traffic?
A . Tap
B. Virtual Wire
C. Layer 2
D. Layer 3

View Answer

Answer: B

Explanation:

A virtual wire logically binds two Ethernet interfaces together, allowing for all traffic to pass between the interfaces, or just traffic with selected VLAN tags (no other switching or routing services are available). You can create virtual wire subinterfaces to classify traffic according to an IP address, IP range, or subnet. A virtual wire requires no changes to adjacent network devices.

A virtual wire can bind two Ethernet interfaces of the same medium (both copper or both fiber optic),

or bind a copper interface to a fiber optic interface.