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Exam 300-620 topic 1 question 55 discussion

Actual exam question from Cisco's 300-620
Question #: 55
Topic #: 1
[All 300-620 Questions]

In the context of VMM, which protocol between ACI leaf and compute hosts ensures that the policies are pushed to the leaf switches for immediate and on demand resolution immediacy?

  • A. VXLAN
  • B. LLDP
  • C. ISIS
  • D. STP
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Suggested Answer: B 🗳️
by thiyagas at Jan. 16, 2021, 9:50 a.m.

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Highly Voted 3 years, 10 months ago
Correct Answer: B . Immediate—Specifies that EPG policies (including contracts and filters) are downloaded to the associated leaf switch software upon ESXi host attachment to a DVS. LLDP or OpFlex permissions are used to resolve the VM controller to leaf node attachments. The policy will be downloaded to leaf when you add host to the VMM switch. CDP/LLDP neighborship from host to leaf is required. On Demand—Specifies that a policy (for example, VLAN, VXLAN bindings, contracts, or filters) is pushed to the leaf node only when an ESXi host is attached to a DVS and a VM is placed in the port group (EPG). The policy will be downloaded to leaf when host is added to VMM switch and virtual machine needs to be placed into port group (EPG). CDP/LLDP neighborship from host to leaf is required. With both immediate and on demand, if host and leaf lose LLDP/CDP neighborship the policies are removed. https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/aci-fundamentals/b_ACI-Fundamentals/b_ACI-Fundamentals_chapter_01011.html
upvoted 16 times
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sailorsoul
Most Recent 10 months ago
Selected Answer: B
No doubt it is B
upvoted 1 times
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Redou2201
1 year, 2 months ago
Selected Answer: B
it is LLDP
upvoted 1 times
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Gab99
2 years, 1 month ago
Selected Answer: B
makes more sense
upvoted 1 times
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Nickname456
2 years, 2 months ago
Correct should be B
upvoted 1 times
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mdsuresh
2 years, 9 months ago
B is correct
upvoted 1 times
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thomyohan
3 years, 4 months ago
Correct Answer : B
upvoted 2 times
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thiyagas
3 years, 10 months ago
Protocol between Leaf and Compute used is lldp correct.? not sure if the vxlan is the answer
upvoted 2 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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