Exam 300-620 topic 1 question 54 discussion

Definitely C When using pre-provision immediacy, policy is downloaded to ACI leaf switch regardless of CDP/LLDP neighborship. Even without a hypervisor host connected to the VMM switch.

Correct answer is C. Pre-provision—Specifies that a policy (for example, VLAN, VXLAN binding, contracts, or filters) is downloaded to a leaf switch even before a VM controller is attached to the virtual switch (for example, VMware VDS). This pre-provisions the configuration on the switch. 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

I think it is C. But there is one more thing to know: Only leaf switches with access policies referencing an AAEP associated with a VMM domain download policies as a result of EPG pre-provisioning.

C is correct > Pre-provision: VLAN will be deployed on all leaf interfaces under the AAEP associated to the VMM domain regardless of VM controller of hypervisor status. > Immediate: VLAN will be deployed on leaf interfaces only when hypervisors are detected through LLDP or CDP. This information has to be bi-direction. > On Demand: VLAN will be deployed on leaf interfaces only when hypervisors are detected as mentioned in Immediate mode and when at least one VM is associated to the corresponding port group. Both conditions need to be met for the VLAN to be deployed on leaf interfaces in On-Demand mode.

I think that the correct answer is D, because in question say "No Cisco Discovery Protocol neighborship has been formed".

The answer is C: 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 Pre-provision—Specifies that a policy (for example, VLAN, VXLAN binding, contracts, or filters) is downloaded to a leaf switch even before a VM controller is attached to the virtual switch (for example, VMware VDS). This pre-provisions the configuration on the switch. .. . .. When using pre-provision immediacy, policy is downloaded to ACI leaf switch regardless of CDP/LLDP neighborship. Even without a hypervisor host connected to the VMM switch.

It should be . B When using pre-provision immediacy, policy is downloaded to ACI leaf switch regardless of CDP/LLDP neighborship. Even without a hypervisor host connected to the VMM switch.

I think its . A When using pre-provision immediacy, policy is downloaded to ACI leaf switch regardless of CDP/LLDP neighborship. Even without a hypervisor host connected to the VMM switch.

This must be D. Both CDP and LLDP are supported, but the immediate resolution is selected that does require CDP/LLDP. Only pre-provisioned does not require CDP/LLDP. here is a snip from the docs (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) Resolution Immediacy 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.