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Cisco 642-637

642-637

Exam Code: 642-637

Exam Name: Securing Networks with Cisco Routers and Switches (SECURE) v1.0

Updated: Sep 09, 2026

Q&A Number: 136 Q&As

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Cisco 642-637 Exam Syllabus Topics:

SectionObjectives
Topic 1: Layer 2 Security- Switch security mechanisms
  • 1. Port security
    • 2. DHCP snooping
      • 3. Dynamic ARP Inspection (DAI)
        • 4. STP protection features
          Topic 2: Secure Routing and Infrastructure- Routing protocol security
          • 1. OSPF authentication
            • 2. EIGRP authentication
              - Infrastructure protection mechanisms
              Topic 3: Secure Management and Monitoring- Secure device management
              • 1. SSH configuration
                • 2. SNMPv3 security
                  - Logging and monitoring practices
                  Topic 4: Authentication, Authorization, and Accounting (AAA)- AAA configuration and deployment
                  • 1. RADIUS and TACACS+
                    • 2. Local and centralized authentication
                      Topic 5: VPN Technologies- IPsec VPN implementation
                      • 1. Remote access VPN concepts
                        • 2. Site-to-site VPNs
                          Topic 6: Network Security Fundamentals- Security principles and threat models
                          - Cisco security architecture overview
                          Topic 7: Device Hardening- Router and switch hardening techniques
                          • 1. Secure IOS configuration practices
                            • 2. Disable unused services and ports

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