Cisco DCACI 300-620
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Cisco DCACI 300-620 (Implementing Cisco Application Centric Infrastructure) is a Cisco exam focused on deploying and operating an ACI fabric. It suits data center engineers, network consultants, and virtualization or automation specialists who design, implement, or support Cisco's application-centric data center architecture in enterprise and service provider environments. The exam is delivered in English and is typically taken by candidates who already hold CCNA-level routing and switching knowledge and want to prove hands-on ACI skills. The five commonly cited topic areas are ACI fabric infrastructure, ACI packet flow, ACI fabric management, ACI fabric connectivity, and integration of ACI with external tools. Expect scenario-based items on fabric discovery and initialization, endpoint learning and policy enforcement, tenant constructs such as VRFs, bridge domains, EPGs and contracts, fabric access policies, external Layer 2 and Layer 3 connectivity, and automation through APIs and integration tooling. Preparation should combine official Cisco learning resources, hands-on lab time in a real or simulated ACI environment, and careful review of configuration workflows and verification commands. Note that this page is independent study material and is not affiliated with or endorsed by Cisco. Confirm current exam logistics, including question count, duration, passing score, fee, retake rules, and validity period, on Cisco's official certification pages before scheduling.
What you'll study
About Cisco DCACI 300-620 preparation
What is the DCACI 300-620 exam about?
It tests implementation and operation of Cisco ACI: fabric infrastructure and discovery, packet flow and forwarding behavior, fabric management, connectivity to external networks, and integration with automation and external tools. Expect configuration-oriented, scenario-based questions rather than pure trivia, so lab familiarity matters more than memorizing menus.
Is this page affiliated with Cisco?
No. This is independent study material produced by an independent platform. It is not sponsored, endorsed, or reviewed by Cisco, and it does not reproduce any official question bank. Always treat Cisco's own certification and exam pages as the authoritative source for exam logistics and objectives.
How many questions are on the exam and how long is it?
Those figures are not available from the source used to build this page, so we do not publish a number. Cisco revises exams periodically, and older figures circulate widely online. Check the official Cisco exam page immediately before you schedule so your pacing plan reflects the current delivery.
What is the passing score and what does it cost?
We cannot state a passing score or fee here because the source retrieved for this page did not include them. Passing scores are scaled rather than a simple percentage, and fees vary by region and currency. Confirm both on Cisco's official certification pages or with the testing provider when you book.
How hard is the exam, and what trips people up?
Candidates with production ACI experience generally find it manageable; those who only read documentation often struggle. Common failure modes are weak understanding of endpoint learning and packet flow, confusion between fabric access policies and tenant policy, and shallow knowledge of external connectivity and API-driven integration. Build a lab and trace traffic end to end.
What study order do you recommend?
Start with fabric infrastructure and discovery, then packet flow, because almost every later topic depends on forwarding behavior. Move to fabric management, then external connectivity, and finish with integration and automation. Practice each area in a lab before advancing, and revisit packet flow periodically since it anchors troubleshooting questions.
What background should I have before starting?
Comfort with data center switching, VLANs, routing protocols, and virtualization is important. Familiarity with Cisco NX-OS-style CLI and basic REST API or scripting concepts helps for the integration domain. If those foundations are shaky, close the gaps first; otherwise ACI-specific policy concepts will be hard to retain.
Can I retake the exam if I fail, and how long is the certification valid?
Retake rules and certification validity are set by Cisco and were not included in the source used here, so we do not publish specifics. Policies change, and waiting periods may apply between attempts. Verify current retake and recertification rules on Cisco's official certification pages before you rely on them for planning.
How should I prepare in the final two weeks?
Shift from reading to doing. Lab the full path: fabric discovery, tenant policy creation, contract enforcement, external Layer 2 and Layer 3 connectivity, and an API-driven change. Then review verification and troubleshooting output for each area. Re-read the official exam objectives and confirm logistics on Cisco's site before test day.