Cisco 642-637 : Securing Networks with Cisco Routers and Switches (SECURE) v1.0

642-637 real exams

Exam Code: 642-637

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

Updated: Jul 21, 2026

Q & A: 136 Questions and Answers

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Cisco 642-637 Exam Syllabus Topics:

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

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