Cisco 642-661 : CCIP Configuring BGP on Cisco Routers (BGP)

642-661 real exams

Exam Code: 642-661

Exam Name: CCIP Configuring BGP on Cisco Routers (BGP)

Updated: Sep 11, 2026

Q & A: 204 Questions and Answers

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Cisco 642-661 Exam Syllabus Topics:

SectionObjectives
Topic 1: Troubleshooting and Security- Security mechanisms
  • 1. Prefix filtering and route validation
    - BGP troubleshooting techniques
    • 1. Neighbor state issues and session debugging
      Topic 2: BGP Fundamentals- BGP protocol overview and characteristics
      • 1. Path vector behavior and BGP basics
        • 2. eBGP vs iBGP differences
          Topic 3: Route Selection and Policy Control- BGP path selection process
          • 1. Local preference and MED attributes
            • 2. AS-path and weight manipulation
              - Policy implementation
              • 1. Route maps and filtering (prefix lists, AS-path filters)
                Topic 4: Scalability Features- iBGP scalability
                • 1. Confederations
                  • 2. Route reflectors
                    Topic 5: BGP Configuration- Basic BGP setup on Cisco routers
                    • 1. Neighbor relationships and peering
                      • 2. Network statements and route advertisement
                        Topic 6: Advanced BGP Operations- Route aggregation and summarization
                        • 1. CIDR and aggregation strategies
                          - BGP redistribution
                          • 1. Redistribution between BGP and IGP protocols

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