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Cisco 644-337

644-337

Exam Code: 644-337

Exam Name: SP Video Phase III Cable Headend & Hub

Updated: Nov 09, 2026

Q&A Number: 20 Q&As

644-337 Free Demo download:

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Cisco 644-337 Exam Syllabus Topics:

SectionObjectives
Topic 1: Conditional Access and Security- Content protection systems
  • 1. Encryption methods for broadcast video
    • 2. Conditional Access System (CAS) overview
      Topic 2: Digital Video Transport- QAM modulation systems
      • 1. RF channel mapping
        • 2. 64-QAM and 256-QAM principles
          - Transport streams
          • 1. MPEG transport stream structure
            • 2. Multiplexing and demultiplexing
              Topic 3: Video Encoding and Compression- Statistical multiplexing
              • 1. Bandwidth optimization techniques
                • 2. Multi-channel encoding strategies
                  - MPEG compression fundamentals
                  • 1. MPEG-2 / MPEG-4 video basics
                    • 2. Bitrate and quality considerations
                      Topic 4: Operational Monitoring and Troubleshooting- Troubleshooting methodologies
                      • 1. Common video delivery issues
                        • 2. Layered fault isolation approach
                          - Network and service monitoring
                          • 1. Fault detection in headend systems
                            • 2. Signal quality metrics and KPIs
                              Topic 5: Cable Headend Architecture- Hub and distribution design
                              • 1. Hub architecture and role in service delivery
                                • 2. Transport between headend and hub
                                  - Headend components and signal flow
                                  • 1. Signal acquisition and ingest systems
                                    • 2. Headend processing chain overview

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