If CDP is enabled on all devices and interfaces, which devices will appear in the output of a show cdp neighbors command issued from R2?
Refer to the exhibit.
If CDP is enabled on all devices and interfaces, which devices will appear in the output of a show cdp neighbors command issued from R2?
A . R2 and R3
B . R1 and R3
C . R3 and S2
D . R1, S1, S2, and R3
E . R1, S1, S2, R3, and S3
Answer: C
Explanation:
A Cisco device enabled with CDP sends out periodic interface updates to a multicast address in order to make itself known to neighbors. Since it is a layer two protocol, these packets are not routed. So the devices detected would be immediate connected neighbors.
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