The Cisco 300-620 exam validates your ability to implement and manage Cisco Application Centric Infrastructure (ACI) in enterprise environments. This certification is part of the Cisco Certified Network Professional, Cisco Certified Network Professional Data Center, and Cisco Specialist credential paths, making it essential for network engineers advancing into data center and infrastructure roles. This page provides a structured overview of exam topics, question formats, and practical preparation strategies to help you build confidence and competency before test day.
Use this topic map to guide your study for Cisco 300-620 (Implementing Cisco Application Centric Infrastructure) within the Cisco Certified Network Professional, Cisco Certified Network Professional Data Center, and Cisco Specialist path.
The 300-620 exam combines knowledge-based and scenario-driven questions to assess both conceptual understanding and practical decision-making. Questions progress in difficulty and reflect real-world implementation challenges you will encounter.
Questions emphasize practical application over memorization, rewarding candidates who understand how fabric components interact and how to resolve common operational challenges.
Effective preparation follows a structured, topic-by-topic approach combined with regular practice and self-assessment. Allocate study time proportionally to exam weight and your current knowledge gaps, then reinforce learning through scenario practice and timed drills.
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ACI Fabric Infrastructure and ACI Packet Forwarding typically account for a larger portion of exam questions because they form the foundation of ACI operations. External Network Connectivity and Integrations are also heavily tested, especially in modern data center environments. Focus your study time proportionally on these areas while ensuring you have solid coverage of ACI Management and ACI Anywhere.
In a typical ACI deployment, you begin by designing and deploying the Fabric Infrastructure, then configure Packet Forwarding policies and tenant networks. External Network Connectivity bridges ACI to legacy systems and external resources. Integrations enable ACI to work with virtualization and container platforms, while ACI Management provides the operational oversight. ACI Anywhere extends these concepts to hybrid and multi-site scenarios. Understanding these connections helps you solve scenario-based questions and troubleshoot real production issues.
Hands-on experience significantly improves retention and confidence. Prioritize labs covering APIC navigation, tenant and contract creation, fabric node registration, and L3Out configuration, these appear frequently on the exam. If possible, access a sandbox environment or lab platform to practice policy deployment and troubleshooting. Even virtual labs or configuration walkthroughs help you internalize the APIC workflow and common pitfalls.
Many candidates confuse contract matching logic or misunderstand how EPGs and policies interact, leading to incorrect answers on packet forwarding questions. Others overlook the importance of fabric health and APIC cluster configuration, which appear in management-focused items. Additionally, weak understanding of L3Out configuration and external connectivity often costs points. Review these areas carefully and test your knowledge with scenario-based practice questions.
In the final week, focus on reviewing high-weight topics and revisiting questions you answered incorrectly during practice. Avoid trying to learn new material; instead, strengthen your understanding of core concepts like fabric topology, contract logic, and APIC administration. Take a full-length practice test under timed conditions, then spend time reviewing explanations for any missed items. Get adequate sleep the night before the exam to ensure mental clarity.
Which two hardware models are supported as fixed spine in Cisco ACI fabrics? (Choose two.)
Refer to the exhibit.
Refer to the exhibit. A company merges three of its departments: CORP, HR, and SERVICES, Currently, the connectivity between departments is achieved by using VRF route leaking. The requirement is to redesign the Cisco ACI networking architecture to communicate between EPGs and BDs from any tenant without configuring contracts or VRF route leaking. Which configuration meets these criteria?
An engineer is extending EPG connectivity to an external network. The external network houses the Layer 3 gateway and other end hosts. Which ACI bridge domain configuration should be used?
An engineer discovered an outage on the mgmt0 port of Leaf113 and Leaf114. Both leaf switches were recently registered in the fabric and have health scores of 100. The engineer overs there is no IP address assigned to the mgmt0 interface of the switches. Which action resolves the outage?
In Cisco ACI, the mgmt0 interface is used for out-of-band (OOB) management, and its IP address must be explicitly assigned through the Node Management Address Policy under the mgmt tenant. When new leaf switches are registered in the fabric, they do not automatically receive an IP address for their mgmt0 interfaces unless they are added to this policy.
What are two requirements for the IPN network when implementing a Multi-Pod ACI fabric? (Choose two.)
The two requirements for the IPN network when implementing a Multi-Pod ACI fabric are:
