- CCDE 400-007 v3.1 has 90-110 questions, 120 minutes, delivered only at Pearson VUE test centers.
- The written exam costs USD 450; the separate eight-hour practical exam costs USD 1,600.
- Network Design is the heaviest domain at 30% of the written exam.
- Passing the written exam alone does not earn the full CCDE - the practical exam is required.
What Is CCDE Certification?
Cisco Certified Design Expert (CCDE) is Cisco's expert-level credential for engineers who architect complex, multi-domain network infrastructures rather than simply configure devices. It sits alongside CCIE at the top of Cisco's certification track, but where CCIE validates deep operational and troubleshooting skill in a technology area, CCDE validates the ability to translate business requirements into a coherent network design across routing, security, services, and operations. If you're still mapping out exactly what the letters mean or how the program is structured, our companion pieces on What Is CCDE? and CCDE Meaning cover the foundational definitions in more depth.
This article focuses specifically on the certification mechanics: how the exam is delivered, what it costs, how the content is weighted, and what separates the written qualifying exam from the full credential. For a broader review of terminology and abbreviations, see What Does CCDE Stand For? and What Is A CCDE?.
Exam Format and Registration Mechanics
The gateway to CCDE is the 400-007 CCDE written exam, currently on version 3.1. Cisco specifies the exam as 90-110 multiple-choice questions administered in 120 minutes, delivered in English, closed book, with no prerequisites required to sit for it. That last point matters: unlike many expert-level paths, you don't need a prior associate or professional certification to register for the written exam.
- Delivery method: Pearson VUE testing centers only - the 400-007 exam is excluded from online proctoring, so you must sit it in person.
- Fee: USD 450 for the standard written exam attempt.
- Scoring: Results are reported simply as pass or fail, with no scaled score breakdown published.
- Retake policy: A failed attempt requires a five-calendar-day wait, counted starting the day after the attempt, before you can register again.
Because the retake window is short but the exam fee is real money, most candidates treat every attempt seriously. For a full accounting of what you'll spend across the entire journey, including the practical exam, see our CCDE Certification Cost 2026: Complete Pricing Breakdown. If you want a reference for exactly how Cisco defines a passing result, our CCDE Passing Score 2026: Exactly What You Need to Pass article walks through it in detail, and scheduling logistics are covered in CCDE Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Key Takeaway
Because the 400-007 exam can't be taken via online proctoring, factor in travel time to a Pearson VUE center when scheduling your attempt - don't wait until the last week before a deadline to book.
The Five CCDE Exam Domains
The 400-007 written exam is built from Cisco's v3.1 Unified Exam Topics and core technology list, which now includes AI-related design considerations alongside long-standing IPv4/IPv6 coverage. Content is organized into five domains, and the weighting tells you exactly where to invest your study hours.
| Domain | Weight |
|---|---|
| Network Design | 30% |
| Control, Data, Management Plane, and Operational Design | 25% |
| Business Strategy Design | 15% |
| Service Design | 15% |
| Security Design | 15% |
Domain 3: Network Design (30%)
This is the single largest domain and covers the architectural decisions that hold everything else together - topology, routing protocol selection, scalability, redundancy, and how design choices trade off against operational complexity.
- Justifying design decisions against stated business and technical constraints
- Comparing routing and forwarding architecture options at scale
- Designing for resiliency and failure-domain isolation
Domain 2: Control, Data, Management Plane, and Operational Design (25%)
The second-heaviest domain focuses on how a network is actually run day to day - separating and securing the control, data, and management planes while designing for observability and manageable operations.
- Designing management-plane access and telemetry strategies
- Control-plane scaling and protection techniques
- Operational design trade-offs that affect long-term maintainability
Domains 1, 4, and 5: Business Strategy, Service, and Security Design (15% each)
These three domains are evenly weighted but distinct in flavor. Business Strategy Design tests whether you can translate stakeholder requirements into design constraints. Service Design covers how services are delivered and consumed across the architecture. Security Design requires embedding security considerations into the design itself rather than bolting them on afterward.
- Mapping business drivers to measurable design requirements
- Designing service assurance and SLA-aligned architectures
- Integrating security controls into topology and policy design decisions
Because the domains interlock - a Network Design decision almost always has Security Design and Operational Design implications - Cisco's exam questions are frequently scenario-based rather than simple recall. For a domain-by-domain breakdown with study resources for each area, read CCDE Exam Domains 2026: Complete Guide to All 5 Content Areas.
Written Exam vs. Full CCDE Certification
This is the point most first-time candidates misunderstand: passing the 400-007 written exam does not, by itself, earn the CCDE certification. Cisco treats it as a qualifying exam. The full CCDE credential also requires passing a separate eight-hour practical examination, priced at USD 1,600, which evaluates your ability to design under realistic, extended scenario conditions.
Once you pass the written exam, it remains valid for three years - that's your window to attempt and pass the practical exam before you'd need to requalify. The full CCDE certification, once earned, is also valid for three years before recertification is required. For a complete walk-through of what qualifies a candidate to attempt each stage, see CCDE Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Who Pursues CCDE and Why
CCDE candidates are typically network architects, senior design engineers, and consulting engineers who are already responsible for designing infrastructure that spans multiple technology domains rather than operating a single technology stack. Because the exam topics span routing and forwarding architecture, operational design, service delivery, security integration, and business-driven decision-making, the credential tends to attract people who already sit at the intersection of technical depth and stakeholder communication - the ones asked to justify why a design was built a certain way, not just how to configure it.
Organizations hiring for design-heavy roles often use CCDE as a signal that a candidate can evaluate trade-offs across an entire network rather than optimize one piece of it. If you're evaluating whether the credential fits your career trajectory, our CCDE Jobs and CCDE Salary Guide 2026: Complete Earnings Analysis articles go deeper on role types and compensation considerations, and Is the CCDE Certification Worth It? Complete ROI Analysis 2026 weighs the investment against the outcome.
Preparing for the 400-007 Exam
Generic study techniques only get you so far with an exam built around scenario-based design reasoning rather than fact recall. What actually moves the needle for CCDE is sequencing your study around the domain weights and practicing the kind of comparative, trade-off-driven thinking the exam rewards.
Network Design (30%)
- Work through topology and routing architecture scenarios since this is the single largest domain
- Practice justifying design choices against stated constraints rather than just naming protocols
Control, Data, Management Plane, and Operational Design (25%)
- Study management-plane security and control-plane scaling together, since the exam blends operational and technical concerns
Business Strategy, Service, and Security Design (15% each)
- Rotate through these three evenly weighted domains, focusing on how business requirements translate into service and security constraints
Integrated Review
- Run full-length scenario practice under the 120-minute time limit to build pacing across 90-110 questions
Whatever cadence you use, review sessions should emphasize why one design beats another under given constraints, since that's the reasoning the 400-007 exam actually tests. For a structured week-by-week plan built specifically around these domain weights, see our CCDE Study Guide 2026: How to Pass on Your First Attempt. If you want an honest assessment of what makes this exam genuinely difficult before you commit to a timeline, read How Hard Is the CCDE Exam? Complete Difficulty Guide 2026, and check current outcome data in CCDE Pass Rate 2026: What the Data Shows. Running timed scenario practice on our practice test platform before exam day helps you get a feel for pacing across 90-110 questions in 120 minutes, and a quick pass through our CCDE Cheat Sheet 2026: One-Page Review of Must-Know Facts the night before can reinforce the format details covered here.
Key Takeaway
Allocate your remaining study time roughly in proportion to domain weight - Network Design and the Control/Data/Management Plane domain together account for 55% of the written exam.
Recertification and Continuing Education
CCDE certification is valid for three years from the date it's earned. To maintain it, Cisco lists 120 Continuing Education (CE) credits required for expert-level CCDE recertification. Credits can be accumulated through eligible examinations and Cisco training, giving certified professionals flexibility in how they stay current rather than forcing a full retake of the practical exam every cycle. If formal preparation resources or CE-eligible coursework are part of your plan, CCDE Training outlines options worth considering alongside self-study.
Because the written qualifying exam has its own three-year validity separate from the full certification's three-year cycle, it's worth tracking both dates independently if you're mid-journey between the written and practical stages. Missing the written exam's validity window means requalifying from scratch before attempting the practical exam again.
Frequently Asked Questions
No. The 400-007 written exam is a qualifying exam. Earning the full CCDE certification also requires passing the separate eight-hour practical exam, priced at USD 1,600.
Cisco specifies 90-110 multiple-choice questions to be completed in 120 minutes, delivered in English as a closed-book exam with no prerequisites.
No. The 400-007 CCDE written exam is excluded from online proctoring and must be taken at a Pearson VUE testing center.
Start with Network Design, since at 30% it is the largest single domain, followed by Control, Data, Management Plane, and Operational Design at 25%.
The written qualifying exam is valid for three years, giving you that window to attempt and pass the practical exam before needing to requalify.