Cisco 400-007 Practice Exam Questions & Answers

6 Free Questions · Last reviewed: October 9, 2026 · Prepared & Reviewed by the ValidExamDumps Editorial Team

Exam Facts

Cisco 400-007 Exam Details

Key details for this exam, checked against the published exam outline

551 Practice Questions (Our Bank)
120 minutes Exam Duration
USD 450 Official Exam Fee
Exam Code
400-007
Full Name
Cisco Certified Design Expert - CCDE v3.1
Issuing Body
Cisco
Question Format (Our Bank)
Multiple Choice, Drag & Drop
Delivery
At a Pearson VUE test centre
Practice Questions

Free 400-007 Practice Questions

Each question shows the correct answer and an explanation of why it is right

VA
ValidExamDumps Editorial Team Every question and its answer is checked by our 400-007 exam preparation team, who also write the explanation shown with each one. How we research and review these pages

What is a characteristic of a secure cloud architecture model?

Correct Answer: D
Explanation

Software-defined network segmentation is a core element of secure cloud architecture models.

It isolates workloads, minimizes blast radius, and enforces east-west security controls in dynamic multi-tenant environments.

Why other options are less appropriate:

A: This is a principle of least privilege (IAM) but not a cloud architecture characteristic.

B: Dedicated workstations are endpoint measures, not architecture-level.

C: MFA protects identity but does not define architecture segmentation.

---

Before migrating anything to the cloud, what are three cloud readiness assessment steps that are required to perform? (Choose three.)

Correct Answer: C, D, E

Which feature is supported by NETCONF but is not supported by SNMP?

Correct Answer: A
Explanation

A (Distinguishing between config and operational data):NETCONF was designed to provide structured data models (such as YANG), clearly separating configuration from operational state data. SNMP lacks this built-in distinction and generally treats all data as MIB objects.

Other options explained:

B/C/D: Both protocols can perform actions and retrieve or modify data, but only NETCONF natively differentiates config vs. operational state.

Which two factors must be considered for high availability in campus LAN designs to mitigate concerns about unavailability of network resources? (Choose two.)

Correct Answer: A, D
Explanation

A (Device resiliency):Hardware redundancy (dual power supplies, supervisor modules, etc.) ensures device uptime.

D (Network resiliency):Redundant links, fast failover mechanisms, and loop-free designs ensure the overall network remains operational during failures.

Other options explained:

B: Device type is secondary if resiliency features are built-in.

C: Network type is not directly related to resiliency.

E: Network size influences scale, not availability.

During a pre-sales meeting with a potential customer, the customer CTO asks a question about advantages of controller-based networks versus a traditional network. What are two advantages to mention? (Choose two)

Correct Answer: C, E
Explanation

Comprehensive and Detailed Explanation From Exact Extract of Design Expert (CCDE)

Controller-based networks centralize control logic, abstracting hardware complexity and providing consistency. This results in:

C . Abstraction: Devices are treated as policy endpoints rather than configuration silos, simplifying network operations and scalability.

E . Consistent Configuration: Policies and configurations are pushed uniformly across all devices from the controller, reducing human error and improving compliance.

These features align with CCDE v3.1 recommendations for modern, policy-driven, and scalable architectures that are easier to manage and automate.

The network designer needs to use GLOP IP addresses to make them unique within their ASN. Which multicast address range will be considered?

Correct Answer: C
Explanation

C: GLOP addressing is defined in RFC 2770, assigning a portion of the 233.0.0.0/8 range for each AS based on their 16-bit ASN. This allows each AS to use a /24 of globally unique multicast addresses without coordination from IANA.

Other options:

A: 239.0.0.0/8 is the administratively scoped multicast address space.

B: 224.0.0.0/24 is reserved for local link-scoped protocols (e.g., OSPF, RIP).

D: 232.0.0.0/8 is the Source-Specific Multicast (SSM) range.

Full Access

Get the complete 400-007 question set

  • 551 questions covering all exam domains
  • Correct answers with explanations, like the free questions above
  • PDF and online practice test
  • 90 days of free updates
Starting from 50% OFF
$20 $40
Get Full Access

One-time payment · Instant download

Study Guide

What the Cisco 400-007 Exam Covers

Exam domains verified against: Official Cisco 400-007 exam guide, last checked October 2026.

Domain 1: Business Strategy Design 15%

Understand how project management methodologies like waterfall and agile impact network design and implementation. Learn to develop solutions based on business continuity, operational sustainability, and financial analysis including RPO, ROI, and CAPEX/OPEX cost considerations.

Domain 2: Control, data, management plane and operational design 25%

Master end-to-end IP traffic flow in complex networks and understand data, control, and management plane technologies. Design centralized, decentralized, or hybrid control planes and learn automation and orchestration including APIs, model-driven management, and controller-based technologies like SD-WAN and overlay fabrics.

Sample question from this domain above: Q1

Domain 3: Network Design 30%

Design resilient, scalable, and secure modular networks across traditional and software-defined architectures. Balance technical, operational, and business constraints while considering application behavior, implementation plans, and migration strategies.

Sample questions from this domain above: Q2Q3Q6

Domain 4: Service Design 15%

Create modular network designs that support diverse applications including voice, video, data center replication, IoT, and storage. Design cloud and hybrid solutions addressing regulatory compliance, data governance, service placement, and cloud connectivity options.

Sample question from this domain above: Q4

Domain 5: Security Design 15%

Integrate network security through segmentation, network access control, and visibility mechanisms. Apply the CIA triad, policy enforcement, and regulatory compliance requirements to protect network infrastructure and data.

Sample question from this domain above: Q5

FAQ

400-007 Exam FAQ

Common questions about the exam itself

What experience level do I need before taking the CCDE 400-007 written exam?
Cisco recommends at least seven years of experience in network design, though there are no mandatory prerequisites published for the written exam itself. The practical exam, which follows after passing the written exam, requires you to demonstrate expert-level design capabilities.
How hard is the CCDE 400-007 compared to other Cisco certifications?
The CCDE is one of Cisco's highest-level certifications and significantly more challenging than CCNP exams. It focuses on high-level architectural thinking and business-technical translation rather than hands-on configuration, making it one of the most demanding Cisco certifications available.
What is the actual exam day experience for the 400-007 written test?
You will take a closed-book, proctored exam at a Pearson VUE test centre with no reference materials allowed. The test has between 90 and 110 multiple-choice questions and runs for exactly 120 minutes.
Which objective area on the 400-007 exam do candidates typically find hardest?
Network Design at 30% weight is the largest domain and often the most challenging because it requires integrating technical, operational, and business constraints while designing solutions that address complex real-world scenarios. Most candidates benefit from hands-on experience designing enterprise networks.
How long should I realistically prepare for the CCDE 400-007 written exam?
Plan on four to six months of dedicated study with your seven years of experience as a foundation. Candidates with only theoretical knowledge often need much longer. The exam tests deep architectural understanding that comes from solving real design problems.
What happens if I fail the CCDE 400-007 exam?
You can reschedule and retake the exam, paying the USD 450 fee each time you sit it. There is no published waiting period between attempts, though you will need to study further to address the areas where you struggled.
How does the CCDE 400-007 written exam relate to the CCDE practical exam?
The written exam (400-007) is a prerequisite you must pass before taking the practical exam. Passing the written exam earns you a Cisco Certified Specialist - Design Core certification, but you need to pass both exams to earn the full CCDE credential.
How long does the CCDE certification stay valid once I earn it?
Cisco certifications are valid for three years from the date you earn them. You can renew by passing the current written exam or participating in approved continuing education activities.
What job roles does the CCDE 400-007 certification prepare me for?
The CCDE opens doors to senior-level positions including IT Network Architect, Senior Network Design Engineer, Senior Solutions Architect, and Technical Design Architect roles. It signals expert capability in designing complex enterprise networks.
Can I use the 400-007 CCDE written exam to recertify other Cisco certifications?
Yes. Passing the 400-007 exam counts toward recertification goals for other lower-level Cisco certifications including CCIE certifications. It provides a pathway to maintain multiple credentials.