400-007 Real Exam Questions
Cisco Certified Design Expert (CCDE v3.1) Written Exam. Everything you need to prepare, practice, and pass.
454
Questions
5
Exam Domains
Included
Explanations
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Certification Overview
The exam tests enterprise network design across five interconnected domains: translating business and technical requirements into architecture, designing scalable infrastructure (routing, switching, redundancy), integrating network services (QoS, multicast, wireless), implementing security by design, and planning operations (management, monitoring, optimization). Success requires thinking strategically about long-term architectural implications rather than feature-level implementation.
What This Certification Proves
The CCDE v3.1 Written Exam validates expert-level network design expertise across infrastructure, services, security, and operations. This certification demonstrates the ability to architect complex, scalable enterprise network solutions and is recognized as one of Cisco's most prestigious design credentials.
Who Should Take This Exam
Network architects and senior network engineers with 5+ years of hands-on experience in enterprise network design and deployment. Candidates should have deep expertise in routing, switching, security, and service design. Best suited for professionals transitioning into or currently in architecture roles.
Topic Breakdown
5 domains covering 454 questions
| Domain | Questions | Weight |
|---|---|---|
| Designing Network Infrastructure | 196 | 43% |
| Designing Security | 83 | 18% |
| Gathering And Clarifying Requirements | 61 | 13% |
| Designing Network Services | 60 | 13% |
| Designing Management And Operations | 54 | 12% |
Study Plans
Choose a study plan that matches your schedule and experience level
30 Days
Intensive Sprint
Week 1-2
- Master fundamentals: Designing Network Infrastructure
- Read Cisco official documentation
- Complete 16 questions daily
Week 3
- Deep dive: Designing Security
- Review weak areas from results
- Take 2 full-length exams
Week 4
- Review all flagged questions
- Timed exams to build stamina
- Final revision of key concepts
60 Days
Balanced Approach
Week 1-2
- Survey all exam domains
- Set up study environment
- Begin with foundational topics
Week 3-4
- Focus: Designing Network Infrastructure
- Focus: Designing Security
- 8 questions daily
Week 5-6
- Focus: Gathering And Clarifying Requirements
- Hands-on labs if applicable
- Review explanations for wrong answers
Week 7-8
- Complete all 454 questions
- Identify and eliminate weak areas
- Take 3 full-length timed tests
90 Days
Comprehensive Study
Month 1
- Learn all exam domains at a comfortable pace
- Build strong foundational knowledge
- 6 questions daily
Month 2
- Deep dive into each domain
- Hands-on practice and labs
- Take weekly timed exams
Month 3
- Work through all 454 questions
- Identify and eliminate weak areas
- Take 3 full-length timed exams
400-007-Specific Tips
- Focus on design tradeoffs and justification—CCDE tests architectural reasoning, not just configuration. Practice articulating WHY certain design choices are superior for specific requirements.
- Study the five domains in an integrated way: requirements directly drive infrastructure, services, security, and operational decisions. Use real-world case studies to see this connection.
- Build hands-on design experience with complex topologies: multi-region networks, advanced BGP designs, service mesh concepts, and zero-trust security architectures.
- Master requirement gathering and clarification—this is 20% of the exam weight. Practice translating business constraints into technical specifications.
- Review management and operations domains thoroughly: this includes network management platforms, telemetry, analytics, and operational readiness considerations often overlooked in CCNP studies.
- Study Cisco design frameworks and reference architectures (Cisco DNA, Catalyst, ACI design patterns) as they influence modern design decisions.
- Take mock exams focusing on scenario-based design questions with multiple valid solutions—CCDE values justified design choices over 'one right answer.'
Relevant Career Roles
Sample Questions
Try 5 free questions from the 400-007 question bank
Refer to the exhibit. Company XYZ must design a DMVPN tunnel between the three sites. Chicago is going to act as the NHS and the company wants DMVPN to detect peer endpoint failures. Which technology should be used in the design?
A service provider hires you to design its new managed CE offering to meet these requirements: - The CEs cannot run a routing protocol with the PE - Provide the ability for equal or unequal ingress load balancing in dual-homed CE scenarios. - Provide support for IPv6 customer routes - Scale up to 250.000 CE devices per customer. - Provide low operational management to scale customer growth. - Utilize low-end (inexpensive) routing platforms for CE functionality. Which tunneling technology do you recommend?
An enterprise has identified these causes for inefficient CAPEX spending: - CAPEX planning is driven by technology and not by business objectives. - The CAPEX planning team lacks the data it needs to perform due diligence tasks. - The organizational structure lacks sufficient accountability and incentives. Which corporate cultural change contributes to improving the effectiveness of CAPEX spending?
Organic growth or decline comes from a company's normal business activities, rather than through acquisitions or divestment. Changes in usage patterns can also cause organic change in network requirements. Which tool is useful when designing and operationalizing a network that is in the process of change?
What is a disadvantage of the traditional three-tier architecture model when east west traffic between different pods must go through the distribution and core layers?
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