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Cisco 642-426 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Troubleshooting Methodology and Tools | 20% | - Using CLI, GUI, Syslog, SNMP, and Traces - Analyzing call flow and signaling protocols - Systematic troubleshooting approach |
| Topic 2: Cisco Unity and Unity Connection Troubleshooting | 15% | - Call handler and routing problems - Integration with CUCM - Mailbox and message access issues |
| Topic 3: Gateway and Protocol Troubleshooting | 15% | - DSP and hardware resource problems - PSTN and trunk connectivity failures - H.323, SIP, and MGCP protocol issues |
| Topic 4: Cisco Unified Communications Manager Troubleshooting | 30% | - Call setup and routing failures - Service and database issues - Registration and device connectivity problems - Dial plan and digit manipulation issues |
| Topic 5: Voice Quality and Media Issues | 20% | - QoS configuration and marking problems - Packet loss, delay, and jitter - Codec and media resource failures |
