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Cisco 500-220 Exam - Topic 2 Question 89 Discussion

Which information do the MXs in a High Availability pair share?
C) DHCP association database
A) spanning-tree state
B) time synchronization state
D) stateful firewall database

Cisco 500-220 Exam - Topic 2 Question 89 Discussion

Actual exam question for Cisco's 500-220 exam
Question #: 89
Topic #: 2
[All 500-220 Questions]

Which information do the MXs in a High Availability pair share?

Show Suggested Answer Hide Answer
Suggested Answer: C

DHCP Synchronization To prevent a scenario in which an IP address is assigned by the primary via DHCP and then that same address is assigned to another client by the secondary after a failover, the DHCP lease table is synchronized regularly between the primary and secondary over UDP port 3483. https://documentation.meraki.com/MX/Deployment_Guides/MX_Warm_Spare_-_High_Availability_Pair


by Yong at Nov 20, 2025, 07:03 PM

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Alease
4 months ago
Overall, B seems the most logical. Time sync keeps everything in check.
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Kate
5 months ago
I feel like C) DHCP association database is less relevant in HA pairs.
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Marjory
5 months ago
But wouldn’t A) spanning-tree state be important too? It affects network topology.
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Nichelle
5 months ago
I’m leaning towards D) stateful firewall database. It’s essential for security.
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Quiana
5 months ago
I agree, B makes sense. Time sync is key for coordination.
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Adelina
5 months ago
I think it's B) time synchronization state. It's crucial for HA.
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Galen
5 months ago
Yup, definitely time synchronization too!
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Catrice
6 months ago
Spanning-tree state is also shared, right?
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Lucille
6 months ago
Wait, are you sure about that? I thought it was the DHCP database.
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Wynell
6 months ago
Totally agree, it's crucial for HA!
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Ilene
7 months ago
They share the stateful firewall database.
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Enola
7 months ago
Sharing the firewall database is the only way to ensure seamless failover. Option D is the way to go.
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Lashanda
7 months ago
Haha, imagine if they shared their personal social media passwords instead! That would be a security nightmare.
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Latia
7 months ago
Definitely D. Sharing the firewall state is crucial for maintaining high availability.
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Alpha
7 months ago
Hmm, I was thinking it was the DHCP association database. But the firewall database makes more sense.
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Joaquin
7 months ago
I agree with Alethea. The stateful firewall database is the key information shared between the MXs.
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Alethea
8 months ago
Option D is the correct answer. The stateful firewall database is shared between the MXs in a High Availability pair.
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Tammara
8 months ago
I have a vague memory of spanning-tree state being part of the shared info, but I might be mixing it up with another topic.
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Fabiola
8 months ago
I feel like we covered DHCP association databases in class, but I don't think they share that in HA pairs.
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Fausto
8 months ago
Alright, time to put my knowledge to the test. I believe the MXs share the spanning-tree state to ensure consistent network topology.
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Hubert
8 months ago
I'm a bit confused on this. Is it something to do with synchronizing network state between the pair? I'll have to make an educated guess on this.
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Sean
9 months ago
I remember something about time synchronization being crucial for HA pairs, but I can't recall if it's specifically shared.
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Aracelis
9 months ago
I think the MXs share the stateful firewall database, but I'm not entirely sure. It seems like the most critical info for HA.
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Silvana
9 months ago
I've got a good feeling about this one. I'm pretty sure the MXs share the stateful firewall database to maintain consistent security policies.
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Hyun
9 months ago
Okay, let me see. I know they share some state information, but I'm not sure which specific types. I'll need to review my notes on High Availability.
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Vivan
10 months ago
Hmm, this seems like a tricky one. I'll need to think carefully about the key features of a High Availability pair.
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Mattie
4 months ago
Spanning-tree state could be important as well!
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Reid
4 months ago
But what about the DHCP association database?
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Derick
4 months ago
I agree, that makes sense for HA pairs.
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Trina
8 months ago
I think it's about the stateful firewall database.
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Tesha
9 months ago
Time synchronization is crucial too.
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