Cisco 400-007 Dumps - CCDE v3.1 Prep

Cisco 400-007 Dumps - Pass Cisco Certified Design Expert CCDE v3.1 Exam in 2026

The Cisco 400-007 - Cisco Certified Design Expert CCDE v3.1 exam is part of the Cisco Certified Design Expert certification path. It is designed for experienced network professionals who focus on advanced design decisions across business, service, security, and operational domains. This exam matters because it validates expert-level skills needed to design complex enterprise and service provider networks with confidence.

Preparing for this certification requires more than memorization. Candidates must understand how design choices affect business outcomes, network behavior, and operational efficiency in real-world environments.

Exam Topics and Approximate Weightage

#	Exam Topics	Sub-Topics	Approximate Weightage (%)
1	Business Strategy Design	Business goals alignment, stakeholder requirements, risk and cost considerations	20%
2	Control, data, management plane and operational design	Plane separation, operations workflows, scalability planning, fault handling	25%
3	Network Design	Topology selection, routing strategy, redundancy planning, capacity and performance design	25%
4	Service Design	Service requirements, availability planning, QoS considerations, service integration	15%
5	Security Design	Access control, threat mitigation, segmentation, secure operational design	15%

The Cisco 400-007 exam tests deep design knowledge, practical judgment, and the ability to choose the right architecture for complex scenarios. Candidates are expected to evaluate requirements, compare trade-offs, and apply expert-level design thinking across business, technical, service, and security areas.

Actual Cisco 400-007 Exam Questions

Question 1

Refer to the exhibit.

ACME Mining has four data centers in Santiago. Cape Town. Mumbai, and Beijing, full-mesh connected via a 400 Mb/s EVP-LAN They want to deploy a new mission-critical application with these

requirements:

clusterheartbeat2Mb/s continuous (250 KB/s)

cluster heartbeat one-way maximum latency 100 ms

These are the current ping tests results between the four data centers:

Which hosting data center pair can host the new application?

AMumbai and Beijing

BSantiago and Cape Town

CSantiago and Mumbai

DCape Town and Mumbai

ECape Town and Beijing

FSantiago and Beijing

Correct answer: D

Question 2

Which two network design considerations improve the maximum link utilization? (Choose two)

Acentralizing the decision-making process

Bchannelizing the traffic at the receivers

Cdecentralizing the classes of traffic

Dprogrammatically rate-limiting traffic at the senders

Edifferentiating the path calculation

Correct answer: C, E

Question 3

A software-defined network can be defined as a network with an API that allows applications to understand and react to the state of the network in near real time A vendor is building an SDN solution that exposes an API to the RIB and potentially the forwarding engine directly The solution provides off-box processes with the capability to interact with the routing table in the same way as a distributed routing process Which SDN framework model does the solution use?

Areplace

Baugmented

Chybrid

Ddistributed

Correct answer: C

Question 4

Which two mechanisms avoid suboptimal routing in a network with dynamic mutual redistribution between multiple OSPFv2 and EIGRP boundaries? (Choose two.)

AAD manipulation

BMatching OSPF external routes

CRoute tagging

DRoute filtering

EMatching EIGRP process ID

Correct answer: A, C

Mutual redistribution between different routing protocols can cause routing loops and suboptimal routing due to:

Route feedback loops (routes being re-imported back into the originating protocol).

Inconsistent administrative distances (AD) leading to selection of suboptimal paths.

Two key mechanisms avoid these issues:

A . Administrative Distance (AD) manipulation: Ensures that one protocol is consistently preferred over the other when duplicate routes exist.

C . Route tagging: Assigns tags to redistributed routes to identify the source of the route and prevent re-importation (looping) into the originating protocol.

These methods align with CCDE v3.1 principles for multi-protocol control plane design and stability.

Why other options are incorrect:

B & F: Matching routes or process IDs do not directly prevent loops or suboptimal routing.

D is a duplicate of C.

E: Filtering helps but is reactive, not a comprehensive prevention mechanism.

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Question 5

An IT service provider is upgrading network infrastructure to comply with PCI security standards. The network team finds that 802.1X and VPN authentication based on locally-significant certificates are not available on some legacy phones. Which workaround solution meets the requirement?

AReplace legacy phones with new phones because the legacy phones will lose trust if the certificate is renewed.

BEnable phone VPN authentication based on end-user username and password.

CTemporarily allow fallback to TLS 1.0 when using certificates and then upgrade the software on legacy phones.

DUse authentication-based clear text password with no EAP-MD5 on the legacy phones.

Correct answer: B

B (Enable phone VPN authentication based on end-user username and password):When legacy devices don't support certificate-based authentication, fallback to username/password provides a temporary workaround while maintaining PCI compliance, assuming strong credentials and secure tunnels are used.

Other options explained:

A: Immediate hardware replacement may not be feasible.

C: TLS 1.0 fallback violates PCI standards, which prohibit deprecated protocols.

D: Clear text authentication is non-compliant with PCI requirements.

Frequently Asked Questions

1. What is the Cisco 400-007 exam?

The Cisco 400-007 exam is the Cisco Certified Design Expert CCDE v3.1 exam, part of the Cisco Certified Design Expert certification path.

2. Who should take the Cisco Certified Design Expert CCDE v3.1 exam?

It is intended for experienced network professionals who work with advanced network, service, security, and operational design decisions.

3. Is the Cisco 400-007 exam difficult?

Yes, it is an expert-level exam that requires strong design knowledge, practical understanding, and the ability to evaluate complex scenarios.

4. Can I pass Cisco 400-007 with only braindumps?

Braindumps alone are not the best approach. You should use them together with structured review and practical understanding of the exam topics.

5. Do I need hands-on experience for CCDE v3.1 preparation?

Yes, hands-on experience is very helpful because the exam focuses on practical design judgment and real-world decision making.

6. Are QA4Exam.com dumps and practice tests enough to prepare for first attempt success?

They are a strong preparation tool because they include actual questions and answers, verified content, and realistic practice test format, but you should still review the concepts carefully.

7. What format do the QA4Exam.com study materials use?

QA4Exam.com provides an Exam PDF and an Online Practice Test, both designed to help you study in a convenient and exam-like format.

8. How do the practice tests help with passing on the first attempt?

They help you practice under timed conditions, identify weak areas, and build confidence with the type of questions you may face on exam day.

400-007 Exam Dumps and Practice Questions