Cisco 640-603 Exam Information and Actual Questions

  • Exam Code/Number: 640-603
  • Exam Name/Title: Routing - BSCN
  • Certification Provider: Cisco
  • Corresponding Certification: Others
  • Exam Questions: 262
  • Updated On: Jul 17, 2026

640-603
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640-603 Exam
Routing - BSCN

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Cisco 640-603 Exam Overview:

Certification Vendor:Cisco
Exam Name:Building Scalable Cisco Internetworks (BSCN)
Exam Number:640-603
Real Exam Qty:Approximately 45–55
Available Languages:English
Certificate Validity Period:CCNP certification typically valid for 3 years (current policy; historical exam is retired)
Exam Duration:90 minutes
Passing Score:Approximately 790–850 (scaled score system; Cisco did not publish a fixed raw passing score)
Related Certifications:Cisco Certified Network Associate (CCNA)
Cisco Certified Network Professional (CCNP)
Exam Price:USD $200–$300 (varies by region and time period; exam is retired)
Exam Format:Multiple choice, Multiple answer, Simulations / troubleshooting scenarios
Recommended Training:Cisco Learning Network (official training resources)
Exam Registration:Cisco Certification Portal
Sample Questions:Cisco 640-603 Sample Questions
Exam Way:Computer-based exam delivered at authorized testing centers (historically Pearson VUE)
Pre Condition:Recommended: CCNA-level knowledge (Cisco Certified Network Associate) or equivalent networking experience
Official Syllabus URL:https://www.cisco.com

Cisco 640-603 Exam Syllabus Topics:

SectionObjectives
Topic 1: Open Shortest Path First (OSPF)- OSPF configuration and scaling
  • 1. Multi-area OSPF design
    • 2. Route summarization and redistribution
      - OSPF fundamentals
      • 1. Area design (backbone, normal, stub areas)
        • 2. LSA types and SPF algorithm
          Topic 2: Enhanced Interior Gateway Routing Protocol (EIGRP)- EIGRP configuration and optimization
          • 1. Troubleshooting EIGRP issues
            • 2. Summarization and load balancing
              - EIGRP operation
              • 1. DUAL algorithm basics
                • 2. Neighbor relationships and convergence
                  Topic 3: Route Redistribution and Policy Control- Routing protocol redistribution
                  • 1. Redistribution between EIGRP, OSPF, and RIP
                    • 2. Loop prevention techniques
                      - Route filtering and policy control
                      • 1. Route maps and distribute lists
                        Topic 4: Routing Principles and TCP/IP Fundamentals- TCP/IP protocol suite and OSI model review
                        • 1. IP addressing and subnetting (VLSM)
                          • 2. Route selection logic and administrative distance
                            Topic 5: Border Gateway Protocol (BGP) Basics- BGP fundamentals
                            • 1. EBGP vs IBGP
                              • 2. Path selection attributes


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