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

"CCIP Configuring BGP on Cisco Routers (BGP)", also known as 642-661 exam, is a Cisco Certification. With the complete collection of questions and answers, PrepPDF has assembled to take you through 204 Q&As to your 642-661 Exam preparation. In the 642-661 exam resources, you will cover every field and category in CCIP Certification helping to ready you for your successful Cisco Certification.

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  • Exam Code: 642-661
  • Exam Name: CCIP Configuring BGP on Cisco Routers (BGP)
  • Certification Provider: Cisco
  • Corresponding Certification: CCIP
  • Updated: Oct 13, 2026
  • No. of Questions: 204 Questions & Answers with Testing Engine
  • Download Limit: Unlimited

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Cisco 642-661 Exam Syllabus Topics:

SectionObjectives
BGP Session Establishment- Neighbor Relationships
  • 1. BGP message types
  • 2. BGP neighbor configuration
  • 3. Session establishment process
BGP Overview- Introduction to BGP
  • 1. BGP limitations
  • 2. Enterprise and ISP applications
  • 3. Appropriate BGP deployment scenarios
Advanced BGP Features- Policy Control and Optimization
  • 1. Route filtering
  • 2. Communities and route attributes
  • 3. Policy-based routing decisions
  • 4. Route aggregation and summarization
BGP Scalability and Design- Network Design
  • 1. Enterprise and service provider deployment
  • 2. Confederations
  • 3. Route reflectors
  • 4. Multihoming design
BGP Troubleshooting- Verification and Diagnostics
  • 1. Interpret BGP show and debug commands
  • 2. Troubleshoot neighbor establishment
  • 3. Troubleshoot routing and policy issues
  • 4. Verify BGP operation
BGP Path Attributes- Attribute Manipulation
  • 1. AS_PATH
  • 2. MED
  • 3. ORIGIN
  • 4. WEIGHT
  • 5. NEXT_HOP
  • 6. LOCAL_PREFERENCE
Basic BGP Configuration- Configuration Tasks
  • 1. Configure eBGP and iBGP neighbors
  • 2. Configure BGP autonomous systems
  • 3. Advertise networks
BGP Route Processing- Route Selection and Propagation
  • 1. Interdomain route processing
  • 2. BGP best-path selection
  • 3. Route advertisement and propagation

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