Cisco 350-023 : CCIE Written: WAN Switching

350-023 exam collection

Exam Code: 350-023

Exam Name: CCIE Written: WAN Switching

Updated: Aug 07, 2026

Q & A: 400 Questions and Answers

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Cisco 350-023 Exam Syllabus Topics:

SectionObjectives
WAN QoS and Performance Optimization- QoS Mechanisms
  • 1. Classification and marking
    • 2. Queuing and congestion avoidance
      - WAN Optimization Techniques
      • 1. Traffic shaping and policing
        Frame Relay- Traffic Management
        • 1. Committed Information Rate (CIR)
          • 2. FECN/BECN and congestion handling
            - Frame Relay Operation
            • 1. Inverse ARP and LMI types
              • 2. DLCI mapping and PVC/SVC concepts
                ATM (Asynchronous Transfer Mode)- ATM Architecture
                • 1. ATM adaptation layers (AAL1, AAL5)
                  • 2. Virtual Path Identifier (VPI) / Virtual Channel Identifier (VCI)
                    - ATM Switching and Signaling
                    • 1. PNNI routing in ATM networks
                      • 2. Traffic shaping and QoS in ATM
                        WAN Switching Fundamentals- Packet vs Cell/Cell Relay Concepts
                        • 1. Frame Relay fundamentals and LMI
                          • 2. ATM cell structure and operation
                            MPLS and Emerging WAN Technologies (legacy context)- Traffic Engineering Concepts
                            • 1. Constraint-based routing concepts
                              - MPLS Fundamentals
                              • 1. LDP basics
                                • 2. Label switching architecture

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                                    CCIE Written: WAN Switching

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