Cisco CCDE written exam will validate that professionals have the expertise to gather and clarify network functional requirements, develop network designs to meet functional specifications, develop an implementation plan, convey design decisions and their rationale, and possess expert-level network infrastructure knowledge.
Cisco CCDE® Written Exam tests a candidate's combined knowledge of routing protocols, internetworking theory and design principles. It assesses a candidate's understanding of network design in the areas of routing, tunneling, Quality of Service, Management, Cost, Capacity, and Security. This exam combines in-depth technical concepts with Network Design principles. Product-specific knowledge including version of code, implementation and operations specific concepts are not tested on the CCDE exam. The exam is closed book and no outside reference materials are allowed.
An Evolving Technologies section is included in the Written exam only. It will enable candidates to bridge their core technology expertise with knowledge of the evolving technologies that are being adopted at an accelerated pace, such as cloud, IoT, and network programmability.
It has been recalibrated and will consist of three subdomains and a total of five tasks for which the expected depth of knowledge will be focused on conceptual comprehension. The Evolving Technologies section will account for 10 percent of the total score while the remaining core technologies will account for 90 percent.
Cisco 352-001 Exam Overview:
| Exam Name | CCDE Design Written Exam (CCDE) |
| Exam Number | 352-001 CCDE |
| Exam Number | $450 USD |
| Duration | 120 minutes |
| Number of Questions | 90 - 110 Question |
| Passing Score | Variable (750-850 / 1000 Approx.) |
| Sample Questions | Cisco 352-001 Sample Questions |
| Practice Exam | Cisco Certified Design Expert Practice Test |
Cisco 352-001 Exam Topics:
| Section | Weight | Objectives |
| Layer 2 Control Plane | 24% | 1. Describe fast convergence techniques and mechanisms a) Down detection b) Interface dampening 2. Describe loop detection and mitigation protocols a) Spanning tree types b) Spanning tree tuning techniques 3. Describe mechanisms that are available for creating loop-free topologies a) REP b) Multipath c) Switch clustering d) Flex links e) Loop detection and mitigation 4. Describe the effect of transport mechanisms and their interaction with routing protocols over different types of links 5. Describe multicast routing concepts 6. Describe the effect of fault isolation and resiliency on network design a) Fault isolation b) Fate sharing c) Redundancy d) Virtualization e) Segmentation |
| Layer 3 Control Plane | 33% | 1. Describe route aggregation concepts and techniques a) Purpose of route aggregation b) When to leak routes / avoid suboptimal routing c) Determine aggregation location and techniques 2. Describe the theory and application of network topology layering a) Layers and their purposes in various environments 3. Describe the theory and application of network topology abstraction a) Purpose of link state topology summarization b) Use of link state topology summarization 4. Describe the effect of fault isolation and resiliency on network design or network reliability a) Fault isolation b) Fate sharing c) Redundancy 5. Describe metric-based traffic flow and modification a) Metrics to modify traffic flow b) Third-party next hop 6. Describe fast convergence techniques and mechanisms a) Protocol timers b) Loop-free alternates 7. Describe factors affecting convergence a) Recursion b) Microloops c) Transport 8. Describe unicast routing protocol operation [OSPF, EIGRP, ISIS, BGP, and RIP] in relation to network design a) Neighbor relationships b) Loop-free paths c) Flooding domains and stubs d) iBGP scalability 9. Analyze operational costs and complexity a) Routing policy b) Redistribution methods 10. Describe the interaction between routing protocols and topologies 11. Describe generic routing and addressing concepts a) Policy-based routing b) NAT c) Subnetting d) RIB-FIB relationships 12. Describe multicast routing concepts a) General multicast concepts b) Source specific c) MSDP/anycast d) PIM e) mVPN 13. Describe IPv6 concepts and operation a) General IPv6 concepts b) IPv6 security c) IPv6 transition techniques |
| Network Virtualization | 15% | 1. Describe Layer 2 and Layer 3 tunnelling technologies a) Tunnelling for security b) Tunnelling for network extension c) Tunnelling for resiliency d) Tunnelling for protocol integration e) Tunnelling for traffic optimization 2. Analyze the implementation of tunnelling a) Tunnelling technology selection b) Tunnelling endpoint selection c) Tunnelling parameter optimization of end-user applications d) Effects of tunnelling on routing e) Routing protocol selection and tuning for tunnels |
| Design Considerations | 18% | 1. Analyze various QoS performance metrics a) Application requirements b) Performance metrics 2. Describe types of QoS techniques a) Classification and marking b) Shaping c) Policing d) Queuing 3. Identify QoS strategies based on customer requirements a) DiffServ b) IntServ 4. Identify network management requirements 5. Identify network application reporting requirements 6. Describe technologies, tools, and protocols that are used for network management 7. Describe the reference models and processes that are used in network management, such as FCAPS, ITIL®, and TOGAF 8. Describe best practices for protecting network infrastructure a) Secure administrative access b) Control plane protection 9. Describe best practices for protecting network services a) Deep packet inspection b) Data plane protection 10. Describe tools and technologies for identity management 11. Describe tools and technologies for IEEE 802.11 wireless deployment 12. Describe tools and technologies for optical deployment 13. Describe tools and technologies for SAN fabric deployment |
| Evolving Techonologies v1.1 | 10% |
1. Cloud ◉ Compare and contrast public, private, hybrid, and multicloud design considerations - Infrastructure, platform, and software as a service (XaaS) ◉ Describe cloud infrastructure and operations - Compute virtualization (containers and virtual machines) 2. Network programmability (SDN) ◉ Describe architectural and operational considerations for a programmable network - Data models and structures (YANG, JSON and XML 3. Internet of things (IoT) ◉ Describe architectural framework and deployment considerations for IoT - IoT technology stack (IoT Network Hierarchy, data acquisition and flow) |
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