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Exam 300-630 topic 1 question 69 discussion

Actual exam question from Cisco's 300-630
Question #: 69
Topic #: 1
[All 300-630 Questions]


Refer to the exhibit. How are the STP BPDUs forwarded over Cisco ACI fabric?

  • A. STP BPDUs that are generated by Switch2 are received by Switch1 and Switch3.
  • B. Cisco ACI fabric drops all STP BPDUs that are generated by the external switches.
  • C. Cisco ACI acts as the STP root for all three external switches.
  • D. STP BPDUs that are generated by Switch1 are received only by Switch3.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
Reference:
https://www.linkedin.com/pulse/cisco-aci-network-behaviour-stptcn-how-identify-loop-ankit-kulshresta
by apot at Oct. 8, 2021, 9:32 a.m.

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apot
Highly Voted 3 years, 8 months ago
I think D
upvoted 6 times
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Brand
Most Recent 6 months, 2 weeks ago
Selected Answer: D
The same VLAN on different VLAN pools and different domains will result in different FD VLANs and, therefore, different FD VNIDs.
upvoted 1 times
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kamkol
1 year, 1 month ago
Selected Answer: D
D. STP BPDUs that are generated by Switch1 are received only by Switch3.
upvoted 1 times
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komanchi
1 year, 7 months ago
A, switches 1 and 3 are directly connected to 2
upvoted 1 times
[Removed]
1 year, 5 months ago
Ofc but they ask how aci forward it
upvoted 1 times
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brocoli
2 years, 10 months ago
I cam across this: https://aci-troubleshooting-lab.readthedocs.io/en/latest/epg.html "ACI floods STP Bridge Protocol Data Units (BPDUs) to the VXLAN network identifier (VNID) assigned to the FD VLAN. VNID is assigned through the VLAN pool so encapsulation has to be part of same VLAN pool to be in part of same STP domain." So D seems indeed correct!
upvoted 1 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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