CCDE Written

My study notes during the CCDE Written exam.

My study notes during the CCDE Written exam.

Reference

Zsiga, Z. (2023). Cisco Certified Design Expert: CCDE 400-007 official cert guide. Cisco Press. ISBN 978-0-13-760104-2. https://www.ciscopress.com/store/cisco-certified-design-expert-ccde-400-007-official-9780137600878

Topics

 
Network Design
ccde-written

Designing large-scale networks that meet today’s dynamic business and IT requirements is a complex undertaking, especially when the existing network…

Apr 7, 2026

Kanban Board Example

Designing for Business Success
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Every network design decision ultimately traces back to the business it serves. Understanding what a business needs, why it needs it, and what success…

Apr 8, 2026
 
What’s the Purpose of the Network?
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The network is the information highway for the business applications of today. For a business to be successful, its applications must be able to…

Apr 10, 2026
 
Security Is Pervasive
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Security is truly pervasive in today’s networks. It is present in each place in the network, in each product architecture, and horizontally interlocked…

Apr 12, 2026
 
Reference Architecture Models and Frameworks
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No single reference architecture, framework, or model will apply to every situation a network designer encounters. In most cases, aspects of multiple…

Apr 13, 2026
 
Transport Technologies
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Enterprise transport technology options for network design, covering optical transport (CWDM and DWDM), Layer 2 media access, VPLS, and EVPN.

Apr 14, 2026
 
Layer 2 Technologies
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For a network designer to properly design a network, they need to know, understand, and be able to properly make design decisions with the following…

Apr 16, 2026
 
Layer 3 Technologies
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Layer 3 control plane design options for enterprise networks, covering routing protocols, BGP, and routing design recommendations.

Apr 17, 2026
 
Network Virtualization
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In modern networks, virtualization has become a fundamental design pillar that enables service providers and enterprises to deliver multiple logical…

Apr 21, 2026
 
Security
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Designing a modern network that is secure is one of the most complicated tasks that network designers confront. Mobility and communication over the…

Apr 23, 2026
 
Wireless
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Wireless network design fundamentals for the CCDE exam, covering RF behavior, 802.11 standards, spectrum management, and mobility.

Apr 24, 2026
 
Automation
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Automation may seem like an unusual topic in a network design certification, but its impact on both the network and the business is profound. Networks…

Apr 25, 2026
 
Multicast Design
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The typical behavior of unicast traffic is to send a copy of each packet to each receiver in a given network segment. The more receivers in the network…

Apr 27, 2026
 
Network Services and Management
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This chapter covers multiple networking and IP service design concepts that are core topics for the CCDE exam. The topics discussed may appear as…

Apr 28, 2026
 
Scalable Enterprise Campus Architecture Design
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A campus network is the portion of the enterprise network infrastructure that provides access to network communication services and resources to end…

Apr 29, 2026
 
Enterprise Internet Edge Architecture Design
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The enterprise Internet edge refers to the various enterprise network modules and components that facilitate efficient and secure communication to the…

Apr 30, 2026
 
Enterprise WAN Architecture Design
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The enterprise WAN refers to the various enterprise WAN modules and components that facilitate efficient and secure communication between different…

May 1, 2026
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