What symbol represents a type of device that is connected to interface FastEthemet 0/23 of the 2960 switch Sw1-2960?

Refer to the graphic shown below:

A. Picture A
B. Picture B
C. Picture C
D. Picture D

Answer: D

Explanation:

Some of the common Cisco symbols are shown below:

Note: Choice B in this question represents an ATM switch, which is not pictured above.
From the output shown in this question, we can see that there a numerous different MAC
addresses associated with port Fa 0/23. This can only mean that a device with multiple
hosts attached to it is plugged into this port, such as a hub or another switch.