A switch that you manage has three VLANs configured. Its MAC address table is shown below:
Vlan Mac address Type Ports
<output omitted>
1 000f.e544.c2b3 dynamic Fa0/10
1 000d.4589.00b8 dynamic Fa0/5
1 00bd.000b.005bb dynamic Fa0/8
11 0001.0d44.bbdb dynamic Fa0/12
55 0014.0bd4.0054 dynamic Fa0/15
66 00bb.224b.0ac5 dynamic Fa0/1
You execute the following command on the switch:
Switch# show int trunk
Port mode Encapsulation Status Native VLANFa0/10 on 802.1q trunking 1
Fa0/5 on 802.1q trunking 1
Fa0/8 on 802.1q trunking 1
Considering only the ports listed in the output, if a frame enters the switch untagged with a destination address
of 0002.254b.0015, which ports will receive the frame? (Choose all that apply.)

A.
All ports

B.
Ports 5, 8, and 11

C.
All unaccounted-for access ports

D.
All ports in the same VLAN except the port on which it arrived

E.
All 802.1q trunk links

Explanation:
When a switch receives a frame, the first thing it will do is determine if the frame’s MAC address is already in its
MAC table. If it is not, as in this scenario, it will send the frame out on all access ports in the same VLAN and
any 802.1q trunks with the exception of the port on which it arrived. Since the frame is untagged it will be in
VLAN 1 by default.
In the MAC table shown in the output, there is no listing for the MAC address 0002.254b.0015. This indicates
that the destination is not directly connected to this switch. Therefore, the switch will send the frame to all trunk
links, which in this case would be ports 10, 5, and 8, and all access links in VLAN 1 with the exception of the
one on which it arrived, which was not identified in the scenario.
Objective:
LAN Switching Fundamentals
Sub-Objective:
Describe and verify switching concepts