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Exam Code: 642-415
Exam Name: Unified Communications Architecture and Design
Updated: Sep 04, 2026
Q & A: 61 Questions and Answers
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| Section | Weight | Objectives |
|---|---|---|
| Call Control Design | 25% | - TFTP, DHCP, LDAP integration - Cisco Unified Communications Manager (CUCM) architecture - Cluster design and server sizing - Call admission control and bandwidth management |
| Video and Endpoint Design | 10% | - Video infrastructure and TelePresence - Endpoint selection and deployment |
| UC Architecture and Design Framework | 20% | - Scalability, redundancy, and high availability - Design methodology for voice over data networks - Network assessment and requirements gathering |
| Messaging and Collaboration Services | 15% | - Presence and mobility services - Unified Messaging integration - Cisco Unity Connection architecture |
| Multisite and WAN Design | 20% | - Gateways, trunks, and signaling protocols - Survivable Remote Site Telephony (SRST) - WAN optimization and bandwidth planning - QoS design for voice and video |
| Security and Resilience | 10% | - Disaster recovery and redundancy - Migration and legacy integration - Security policies and authentication |
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