B - wrong. only shuts int when violation mode is "shutdown"
D - wrong. dynamically learned only 2 MACADD using sticky command
E - wrong. only increments on "restrict" and "shutdown" violation mode
Answer - A, C
Only C is correct.
A is wrong, because STICKY is enabled.
Dynamically learned addresses are added to running-config, and remain in the mac table. They do not age out.
This is tested on a Cisco switch. I disconnected the devices, waited for 10 minutes, and then checked learned addresses. The dynamically learned addresses are still there.
There really isn't a good second answer here. Technically sticky mac addresses are considered static. That being said, I guess the provided answers are the best choices anyways.
From the Official Cert Guide:
Example 6-4 proves the point. It shows two commands about interface F0/2 from the port
security example shown in Figure 6-2 and Example 6-1. In that example, port security was
configured on F0/2 with sticky learning, so from a literal sense, the switch learned a MAC
address off that port (0200.2222.2222). However, the show mac address-table dynamic
command does not list the address and port because IOS considers that MAC table entry
to be a static entry. The show mac address-table secure command does list the address and
port.
You’re misunderstanding the text. Sticky mac learning works by DYNAMICALLY learning the MAC address traffic is received on the port, the book is saying that the show MAC address table dynamic command doesn’t list it because it’s configured on port security. The MAC address can be seen if you type in the “show MAC address table secure command”
Sticky MAC addresses NOT static. They ARE dynamic.
https://community.cisco.com/t5/switching/what-exactly-does-mac-address-sticky-do/td-p/857804
Given Answers are correct.
Sticky MAC ADRESS means that when you reload the Switch the Switch stills save the mac address that was learned DYNAMICALLY.
that is not TRUE entirely - if you don't copy run start after the switch has learnt the MACs, and reboot the switch - it will not save them and wont be available after reload.
1) Configured means the 1 mac address that was statically configured
2) Sticky means the 2 dynamically learnt
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