By Duration: 120 minutes
Languages: English
Associated certification CCDE v3.0
Exam overview
The CCDE v3.0 Written exam (400-007) will validate that candidates have the expertise to gather and clarify network functional requirements, develop network designs to meet functional specifications, develop implementation plans, convey design decisions and their rationale, and possess expert-level knowledge including:
Business Strategy Design
Control, data, and management plane design
Network Design
Service Design
Security Design
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CCDE v3.0 Unified Exam Topics
Exam Description:
The exam topics below are general guidelines for the content likely to be included on both the CCDE Written (400-007) and the CCDE Practical exam.
The CCDE v3.0 Written exam (400-007) is a two-hour, multiple choice test with 90-110 questions, that focuses on core Enterprise network architectures and technologies.
The CCDE v3.0 Practical Exam is an 8-hour scenario-based exam, that focuses on core Enterprise network architectures and technologies, as well as on your selected area of expertise.
Both exams validate your knowledge, skills, and abilities throughout the entire network design lifecycle.
Both exams are closed book and no outside reference materials are allowed.
Your knowledge, skills, and abilities of recommending, building, validating, optimizing, and adapting technologies/solutions in the context of complex high-level network designs will be tested throughout the exam:
• Recommend technologies or solutions that align with the stated requirements.
• Justify why a given decision was made.
• Make design choices and fully design solutions that complies with the stated requirements.
• Validate existing designs to ensure they are compliant with all requirements, as well as suggesting design changes to accommodate for changed specifications or requirements in the network.
• Perform optimizations of existing network designs to fix issues or mitigate risks.
• Build high-level implementation plans/steps.
• Recommend, build, or justify strategies.
Both the Written and Practical exams are designed with dual stack in mind, so both IPv4 and IPv6 should be expected across every exam topic and technology.
For more information about the exam format and the technologies covered within your exam, please refer to:
• CCDE v3.0 Written and Practical Exam Format
• Core – technology list
• Workforce Mobility – technology list
• On-Prem and Cloud Services – technology list
• Large Scale Networks – technology list
15% 1.0 Business Strategy Design
1.1 Impact on network design, implementation, and optimization using various customer project management methodologies (for instance waterfall and agile)
1.2 Solutions based on business continuity and operational sustainability (for instance RPO, ROI, CAPEX/OPEX cost analysis, and risk/reward)
25% 2.0 Control, data, management plane and operational design
2.1 End-to-end IP traffic flow in a feature-rich network
2.2 Data, control, and management plane technologies
2.3 Centralized, decentralized, or hybrid control plane
2.4 Automation/orchestration design, integration, and on-going support for networks (for instance interfacing with APIs, model-driven management, controller-based technologies, evolution to CI/CD framework)
2.5 Software-defined architecture and controller-based solution design (SD-WAN, overlay, underlay, and fabric)
30% 3.0 Network Design
3.1 Resilient, scalable, and secure modular networks, covering both traditional and software defined architectures, considering:
3.1.a Technical constraints and requirements
3.1.b Operational constraints and requirements
3.1.c Application behavior and needs
3.1.d Business requirements
3.1.e Implementation plans
3.1.f Migration and transformation
15% 4.0 Service Design
4.1 Resilient, scalable, and secure modular network design based on constraints (for instance technical, operational, application, and business constraints) to support applications on the IP network (for instance voice, video, backups, data center replication, IoT, and storage)
4.2 Cloud/hybrid solutions based on business-critical operations
4.2.a Regulatory compliance
4.2.b Data governance (for instance sovereignty, ownership, and locale)
4.2.c Service placement
4.2.d SaaS, PaaS, and IaaS
4.2.e Cloud connectivity (for instance direct connect, cloud on ramp, MPLS direct connect, and WAN integration)
4.2.f Security
15% 5.0 Security Design
5.1 Network security design and integration
5.1.a Segmentation
5.1.b Network access control
5.1.c Visibility
5.1.d Policy enforcement
5.1.e CIA triad
5.1.f Regulatory compliance (if provided the regulation)
QUESTION 1
Refer to the exhibit.
The enterprise customer wants to stream one-way video from their head office to eight branch offices using multicast. Their current service provider provides a Layer3 VPN solution and manages the CE routers, but they do not currently support multicast. Which solution quickly allows this multicast traffic to go through while allowing for future scalability?
A. Enable a GRE tunnel between nodes CE1 and CE2
B. Enable a GRE tunnel between nodes C2 and C4
C. Enable a GRE tunnel between nodes C1 and C4
D. Implement hub and spoke MPLS VPN over DMVPN (also known as 2547o DMVPN) between CE1 and CE2
E. The service provider must provide a Draft Rosen solution to enable a GRE tunnel between nodes PE1 and PE2
Answer: B
QUESTION 2
An enterprise network has two core routers that connect to 200 distribution routers and uses fullmesh IBGP peering between these routers as its routing method. The distribution routers are experiencing high CPU utilization due to the BGP process. Which design solution is the most cost effective?
A. Implement route reflectors on the two core routers
B. Increase the memory on the core routers
C. Implement e BGP between the core and distribution routers
D. Increase the memory on the distribution routers
E. Increase bandwidth between the core routers
Answer: A
QUESTION 3
You want to mitigate failures that are caused by STP loops that occur before UDLD detects the failure or that are caused by a device that is no longer sending BPDUs. Which mechanism do you use along with UDLD?
A. Root guard
B. BPDU guard
C. Loop guard
D. BPDU filtering
Answer: C
QUESTION 4
A multicast network is sing Bidirectional PIM. Which two combined actions achieve high availability so that two RPs within the same network can act in a redundant manner? (Choose two)
A. Use two phantom RP addresses
B. Manipulate the administration distance of the unicast routes to the two RPs
C. Manipulate the multicast routing table by creating static mroutes to the two RPs
D. Advertise the two RP addresses in the routing protocol
E. Use anycast RP based on MSDP peering between the two RPs
F. Control routing to the two RPs through a longest match prefix
Answer: A, F
QUESTION 5
Which purpose of a dynamically created tunnel interface on the design of IPv6 multicast services Is true?
A. first-hop router registration to the RP
B. multicast client registration to the RP
C. multicast source registration to the RP
D. transport of all IPv6 multicast traffic
Answer: D
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