Cisco 300-635 Exam FAQs & Preparation Guide
This FAQ answers the questions candidates ask most about the Cisco 300-635 exam — what the certification is, who it is for, how the exam is structured, how difficult it is, what it takes to pass, and how to prepare efficiently. Each answer is written to be useful to someone actually planning their study: it explains the exam’s format and domain weighting, flags the topics that most often trip candidates up, and suggests where to spend limited study time for the best return. Every answer is grounded in Cisco’s official exam information, and the page is reviewed and revised whenever Cisco updates the exam, so the guidance here stays aligned with the current version rather than an older one.
Cisco 300-635 — Frequently Asked Questions (FAQs)
SECTION A: Cisco 300-635 Certification Overview
Q1. What is the Cisco 300-635 exam?
The Cisco 300-635 exam, Automating Cisco Data Center Networking Solutions (DCNAUTO), is a 90-minute Cisco exam on implementing automated data center networking solutions, from infrastructure as code to AI in automation. A pass counts toward both CCNP Data Center and CCNP Automation. The current exam topics are version 2.0, organised into five weighted domains.
Q2. Who should take the Cisco 300-635 exam?
The Cisco 300-635 exam is meant for engineers who implement data center automation, from infrastructure as code and on-box programmability to day-to-day network operations. Its objectives assume working familiarity with Cisco NX-OS and Nexus Dashboard alongside tools such as Ansible, Terraform, Jinja2 and Python. Cisco lists no formal prerequisites for the exam, so an engineer pursuing CCNP Data Center or CCNP Automation can register for it directly.
Q3. What skills does the Cisco 300-635 exam measure?
The Cisco 300-635 exam measures the ability to automate Cisco data center networks across five domains: Network Automation Foundation (15%), Infrastructure as Code (25%), Network Element Programmability (25%), Operations (25%) and AI in Automation (10%). Those domains cover YANG models and protocols such as NETCONF, gNMI and gNOI; Jinja2 templates, Ansible playbooks and Terraform plans; NX-OS programming with Python, POAP and NX-API; and change validation with pyATS plus model-driven telemetry. The AI domain covers AI-assisted code development, the security risks of AI-based automation and integration with AI agents.
SECTION B: Cisco 300-635 Exam Format & Structure
Q4. How many questions are on the Cisco 300-635 exam?
Cisco does not publish a question count for the 300-635 exam. What Cisco does publish is the 90-minute time limit and a format mix of performance-based questions, multiple choice and drag-and-drop items. Rather than a target number of items, plan preparation around the domain weights: Infrastructure as Code, Network Element Programmability and Operations each carry 25%, against 15% for Network Automation Foundation and 10% for AI in Automation.
Q5. How long is the Cisco 300-635 exam?
The Cisco 300-635 exam lasts 90 minutes. The exam is timed and proctored, and performance-based questions share those 90 minutes with multiple-choice and drag-and-drop items, so practise completing hands-on tasks at a steady pace instead of only reading. Cisco provides an exam tutorial that shows how each question format works before test day.
Q6. What types of questions appear on the Cisco 300-635 exam?
The Cisco 300-635 exam uses three question formats that Cisco names: performance-based questions, multiple choice and drag-and-drop. Many objectives are worded with action verbs such as construct, implement, configure and troubleshoot, for example constructing a Terraform plan with controller and device providers, so expect to apply the tools rather than only recognise them. Cisco offers an exam tutorial that walks through each format.
Q7. Can I take the Cisco 300-635 exam online or at a test center?
Yes, the Cisco 300-635 exam can be taken online or in person at a test center. Cisco states that all of its Associate, Professional and Expert written exams are offered both ways, and the 90-minute 300-635 exam is delivered under that policy. Either way the exam is proctored, timed and delivered in a secure environment, so confirm the option that suits you when scheduling.
Q8. What score do I need to pass the Cisco 300-635 exam?
Cisco does not publish a passing score for the 300-635 exam, and results are reported as pass or fail, typically available online within 48 hours. Check the official exam page for any published value. Aim for dependable strength in every domain rather than a target percentage, with particular attention to the three domains that each carry 25%.
SECTION C: Cisco 300-635 Difficulty & Readiness
Q9. How difficult is the Cisco 300-635 exam?
The Cisco 300-635 exam is a demanding CCNP concentration exam that rewards working automation skill more than recall. Three of its five domains carry 25% each, and their objectives ask candidates to construct, implement and troubleshoot: Jinja2 templates, Ansible playbooks, Terraform plans, ncclient scripts, POAP provisioning and pyATS change validation. Reading about those tools is not enough for the performance-based questions, so regular hands-on scripting against NX-OS or Nexus Dashboard is the most reliable way to make the exam feel manageable.
Q10. What makes the Cisco 300-635 exam challenging?
The breadth of the Cisco 300-635 exam is what makes it challenging: one sitting moves from YANG models and gRPC payloads to Terraform providers, Python with ncclient and Linux host networking. Objective 4.7, troubleshooting packet flows for containerized workloads across VLANs, veth, bond interfaces, subinterfaces and bridges, reaches into host-level skills that sit outside switch configuration. The AI in Automation domain adds newer ground as well, including the security risks of an AI-based network automation solution.
SECTION D: Cisco 300-635 Preparation Strategy
Q11. How should I start preparing for the Cisco 300-635 exam?
Start preparing for the Cisco 300-635 exam by downloading the official exam topics and rating yourself against each objective, starting with Network Automation Foundation. Then set up a lab with NX-OS switches or virtual instances, Nexus Dashboard where available, and a workstation running Python, Ansible and Terraform, because hands-on experience is essential for an exam that includes performance-based questions. Cisco's official learning path for the exam gives the study itself a structured starting point.
Q12. Which skills should I focus on to pass the Cisco 300-635 exam?
Focus first on the skills behind the three 25% domains of the Cisco 300-635 exam: Infrastructure as Code, Network Element Programmability and Operations. In practice that means writing and troubleshooting Jinja2, Ansible and Terraform automation, scripting NX-OS with Python, ncclient and NX-API, and validating changes with pyATS while consuming model-driven telemetry. Do not neglect the data models and protocols in Network Automation Foundation, such as YANG, NETCONF, gNMI and gNOI, which the other domains build on.
Q13. How long should I prepare for the Cisco 300-635 exam?
Preparation time for the Cisco 300-635 exam comes down to how much automation work you already do. An engineer already running Ansible or Terraform against Nexus switches mainly needs to close gaps such as POAP, pyATS or the AI in Automation domain. Someone new to YANG, NETCONF and Python must build those foundations first and should allow considerably longer. Divide the time by domain weight, giving the three 25% domains the largest share.
Q14. How should I use practice exams to prepare for the Cisco 300-635 exam?
Use practice exams for the Cisco 300-635 exam as diagnostics rather than material to memorise. Take an early timed set to find weak domains, study and lab those areas, then retest with questions you have not seen. Review every missed or guessed item against its objective, for example 2.5 on troubleshooting Ansible and Terraform solutions, and keep a running list of the modules, commands and data models you confused. In the final weeks, sit full sets inside the 90-minute limit.
SECTION E: Cisco 300-635 Practice Exams & Preparation Tools
Q15. Do practice tests help when preparing for the Cisco 300-635 exam?
Yes, practice tests help with the Cisco 300-635 exam, chiefly by showing which of the five domains still need work before you book. A result broken down by domain makes it clear whether Operations or Infrastructure as Code is holding you back, which a single overall percentage hides. Practice questions also build familiarity with the multiple-choice and drag-and-drop formats, while the performance-based items are best prepared for with lab work.
Q16. Should I take practice exams or read study guides to prepare for the Cisco 300-635 exam?
Use both for the Cisco 300-635 exam: study guides and Cisco documentation explain the concepts, while practice exams and lab work test whether you can apply them. Reading serves the describe objectives well, such as the architectural components of model-driven telemetry or the capabilities of NX-API within Network Element Programmability. The construct objectives, like Jinja2 templates with loops, conditionals and filters, stick only through doing them, so pair each reading session with hands-on work and a timed check.
Q17. What should I look for in study resources for the Cisco 300-635 exam?
Look for Cisco 300-635 study resources that map explicitly to the version 2.0 exam topics and include hands-on labs, not just reading. A useful resource shows objectives being performed step by step, such as constructing a gRPC payload from a YANG module with YANG Suite and pyang, part of Network Automation Foundation. Combine a structured course such as Cisco's official learning path with Cisco product documentation, a personal lab and timed practice questions, so that each source covers what the others lack.
SECTION F: Cisco 300-635 Career & Certification Value
Q18. Is the credential earned by passing the Cisco 300-635 exam worth it?
Yes, the credential earned with the Cisco 300-635 exam is worth it for engineers whose work is implementing automated data center networking solutions, which is the audience Cisco names for the exam. A single pass serves two certification paths at once, since it counts toward CCNP Data Center as well as CCNP Automation. For engineers outside Cisco data center environments the fit is weaker, since the objectives centre on NX-OS, Nexus Dashboard and ACI, starting from the Network Automation Foundation domain.
Q19. Does the credential earned by passing the Cisco 300-635 exam expire?
Yes, a certification earned through the Cisco 300-635 exam expires, since Cisco states that most of its certifications are active for three years from the date earned. Cisco renews a Specialist-level certification with 40 Continuing Education credits and a Professional-level one, such as CCNP Data Center, with 80 credits, and passing exams also counts toward renewal. Confirm the route for your own credential on Cisco's recertification page, keeping in mind that Continuing Education credits can come from study in areas the exam covers, such as AI in Automation.
Q20. How does the Cisco 300-635 exam relate to other Cisco exams and credentials?
The Cisco 300-635 exam relates to two Cisco professional credentials, counting toward both CCNP Data Center and CCNP Automation. The full requirements for each, including any other exams, are listed on that certification's official page, so check them before planning the rest of the path. The exam's own scope is automation of Cisco data center platforms, covering NX-OS, Nexus Dashboard, ACI network-centric mode and Nexus Hyperfabric, with Infrastructure as Code tools such as Ansible and Terraform alongside Python.
Ready to move from reading to practice? The fastest way to turn this overview into real exam readiness is deliberate, timed practice: work through structured Cisco 300-635 practice tests that mirror the real exam’s format and domain weighting, then use your results to see exactly where you stand. Track your score by domain rather than by overall percentage, revisit every question you miss — including the ones you only guessed correctly — and keep practising a topic until you can answer it confidently without hesitation. Repeating that cycle in the weeks before test day is what builds the speed, accuracy, and confidence the Cisco 300-635 exam rewards.
Official Cisco references: Official Cisco 300-635 DCNAUTO exam page · Official DCNAUTO v2.0 exam topics
This FAQ is a study aid based on Cisco’s publicly available exam information. For current eligibility, policies, pricing, and scheduling, always confirm with Cisco’s official exam page.
