EMC E20-855 exam dumps : Networked Storage-SAN Expert for Implementation Engineers

  • Exam Code: E20-855
  • Exam Name: Networked Storage-SAN Expert for Implementation Engineers
  • Updated: Sep 01, 2026     Q & A: 114 Questions and Answers

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EMC E20-855 Exam Syllabus Topics:

SectionObjectives
Topic 1: Storage Area Network (SAN) Fundamentals- SAN topology and design principles
  • 1. Redundancy and high availability concepts
    • 2. Core-edge and mesh designs
      - Fibre Channel architecture and components
      • 1. Switches, directors, and inter-switch links
        • 2. Host Bus Adapters (HBA) and initiators
          Topic 2: Zoning and Fabric Management- Zoning concepts and implementation
          • 1. Single-initiator zoning best practices
            • 2. WWN zoning vs port zoning
              - Fabric services and management
              • 1. Name Server and login services
                • 2. Fabric login and device discovery
                  Topic 3: Storage Array Integration- LUN provisioning and mapping
                  • 1. LUN masking and access control
                    • 2. Host connectivity configuration
                      - Multipathing and failover
                      • 1. MPIO configuration concepts
                        • 2. Path redundancy and load balancing
                          Topic 4: Performance and Troubleshooting- Fault isolation and resolution
                          • 1. Fabric and path failure diagnosis
                            • 2. Connectivity troubleshooting
                              - SAN performance analysis
                              • 1. Congestion and bottleneck identification
                                • 2. Latency and throughput considerations

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