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Updated: Aug 28, 2026
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Cisco 642-971 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Cisco Data Center Networking Infrastructure Design (DCNID) |
| Exam Number: | 642-971 |
| Real Exam Qty: | 65-75 |
| Exam Format: | Multiple Choice (Single/Multiple Answer), Drag-and-Drop |
| Passing Score: | 750-850 / 1000 (not officially published) |
| Available Languages: | English |
| Exam Price: | Approx. $150-$200 USD |
| Related Certifications: | Cisco Data Center Design Specialist CCNP Data Center |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 2 years |
| Exam Registration: | Pearson VUE (historical) |
| Sample Questions: | Cisco 642-971 Sample Questions |
| Exam Way: | Proctored onsite exam at Pearson VUE centers; retired effective December 30, 2011 |
| Pre Condition: | Recommended knowledge: Introducing Cisco Data Center Networking (DCICN), Introducing Cisco Data Center Technologies (DCICT) |
Cisco 642-971 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Center Network Architecture Overview | 20% | - Cisco Nexus product portfolio positioning - Data center traffic patterns and requirements - Modular and hierarchical design principles |
| Topic 2: Data Center Interconnect & Security | 15% | - Design for scalability and resilience - Access control and security best practices - DCI options and requirements |
| Topic 3: Layer 2 Technologies Design | 25% | - EtherChannel and virtual port channels (vPC) - VLANs, VTP, private VLANs design - Fabric Extender (FEX) integration - Spanning Tree Protocol enhancements |
| Topic 4: Layer 3 & Routing Design | 25% | - OSPF, EIGRP, IS-IS design for data center - First-hop redundancy protocols (HSRP, VRRP, GLBP) - High availability and convergence design - BGP and route summarization |
| Topic 5: Network Services & Virtualization | 15% | - Network virtualization concepts - Basic QoS and traffic management - Device virtualization and context design - Management and monitoring design |
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