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300-620Updated 8d ago · Aug 28, 2026

Implementing Cisco Application Centric Infrastructure (DCACI)

404 questions across 1 topics, with suggested answers, explanations where available, and imported community discussion. The first 40 questions are free to preview.

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Question 1 · ACI Management Open

An engineer needs to monitor a Cisco ACI fabric using SNMP. The fabric does not have the “permit any contract” attribute configured. What action must be performed to receive SNMP traps from Cisco APIC?

Answer: C Cisco APIC requires the applicable OOB management contract to permit SNMP traffic. SNMP trap receivers listen on UDP port 162; therefore, an existing OOB contract must include a UDP/162 filter entry to allow APIC trap delivery. **Learn more:** [Cisco Application Centric Infrastructure: Configuring SNMP for ACI](https://www.cisco.com/c/dam/en/us/solutions/collateral/data-center-virtualization/application-centric-infrastructure/aci-guide-configuring-snmp.pdf) · [Configure SNMP in ACI](https://www.cisco.com/c/en/us/support/docs/cloud-systems-management/application-policy-infrastructure-controller-apic/221836-configure-snmp-in-aci.pdf)
Question 2 · Integrations Open

An SNMP monitoring service is being added to a Cisco ACI fabric. The solution must meet these requirements: - A notification must be generated when significant hardware-related events occur. - The notification system must be redundant by using multiple servers to receive the notifications. Which set of actions fulfills these requirements?

Answer: D An SNMP Monitoring Destination Group can contain multiple SNMP trap receivers, providing redundant notification destinations. An SNMP source associates that destination group with the monitoring policy so that SNMP trap notifications are generated and sent when monitored events occur. Community and client-group policies instead control SNMP monitoring access and do not by themselves configure trap notification delivery. **Learn more:** [Cisco APIC Basic Configuration Guide, Release 6.0(x) — Management](https://www.cisco.com/c/en/us/td/docs/dcn/aci/apic/6x/basic-configuration/cisco-apic-basic-configuration-guide-60x/m_management.html) · [Configure SNMP in ACI](https://www.cisco.com/c/en/us/support/docs/cloud-systems-management/application-policy-infrastructure-controller-apic/221836-configure-snmp-in-aci.html)
Question 3 · ACI Packet Forwarding Open

An engineer has configured a bridge domain with the hardware-proxy option for Layer 2 unknown-unicast traffic. Which statement is true of this configuration?

Answer: D In Cisco ACI hardware-proxy mode, Layer 2 unknown-unicast frames are sent to the spine-proxy anycast VTEP instead of being flooded. The spine proxy drops a frame when it cannot locate the destination MAC address in its proxy database. **Learn more:** [Cisco APIC Layer 2 Networking Configuration Guide, Release 6.2(x) — Bridging](https://www.cisco.com/c/en/us/td/docs/dcn/aci/apic/6x/l2-configuration/cisco-apic-layer-2-networking-configuration-guide-62x/bridging-62x.html) · [Cisco Application Centric Infrastructure Design Guide](https://www.cisco.com/c/en/us/td/docs/dcn/whitepapers/cisco-application-centric-infrastructure-design-guide.html)